/* Copyright (c) 2006-2009 Gluster, Inc. This file is part of GlusterFS. GlusterFS is GF_FREE software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. GlusterFS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see . */ #ifndef _CONFIG_H #define _CONFIG_H #include "config.h" #endif #include #include #include #include #include "uuid.h" #include "fnmatch.h" #include "xlator.h" #include "protocol-common.h" #include "glusterd.h" #include "call-stub.h" #include "defaults.h" #include "list.h" #include "dict.h" #include "compat.h" #include "compat-errno.h" #include "statedump.h" #include "glusterd-sm.h" #include "glusterd-op-sm.h" #include "glusterd-utils.h" #include "glusterd-store.h" #include "cli1.h" #include "glusterd-volgen.h" #include #include static struct list_head gd_op_sm_queue; glusterd_op_info_t opinfo = {{0},}; static int glusterfs_port = GLUSTERD_DEFAULT_PORT; void glusterd_destroy_lock_ctx (glusterd_op_lock_ctx_t *ctx) { if (!ctx) return; GF_FREE (ctx); } void glusterd_destroy_stage_ctx (glusterd_op_stage_ctx_t *ctx) { if (!ctx) return; if (ctx->stage_req.buf.buf_val) GF_FREE (ctx->stage_req.buf.buf_val); GF_FREE (ctx); } void glusterd_destroy_commit_ctx (glusterd_op_commit_ctx_t *ctx) { if (!ctx) return; if (ctx->stage_req.buf.buf_val) GF_FREE (ctx->stage_req.buf.buf_val); GF_FREE (ctx); } void glusterd_set_volume_status (glusterd_volinfo_t *volinfo, glusterd_volume_status status) { GF_ASSERT (volinfo); volinfo->status = status; } static int glusterd_is_volume_started (glusterd_volinfo_t *volinfo) { GF_ASSERT (volinfo); return (!(volinfo->status == GLUSTERD_STATUS_STARTED)); } gf_boolean_t glusterd_are_all_volumes_stopped () { glusterd_conf_t *priv = NULL; xlator_t *this = NULL; glusterd_volinfo_t *voliter = NULL; this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); list_for_each_entry (voliter, &priv->volumes, vol_list) { if (voliter->status == GLUSTERD_STATUS_STARTED) return _gf_false; } return _gf_true; } static int glusterd_op_get_len (glusterd_op_t op) { GF_ASSERT (op < GD_OP_MAX); GF_ASSERT (op > GD_OP_NONE); int ret = -1; switch (op) { case GD_OP_CREATE_VOLUME: { dict_t *dict = glusterd_op_get_ctx (op); ret = dict_serialized_length (dict); return ret; } break; case GD_OP_START_BRICK: break; case GD_OP_SET_VOLUME: case GD_OP_REPLACE_BRICK: case GD_OP_ADD_BRICK: { dict_t *dict = glusterd_op_get_ctx (op); ret = dict_serialized_length (dict); return ret; } case GD_OP_REMOVE_BRICK: { dict_t *dict = glusterd_op_get_ctx (op); ret = dict_serialized_length (dict); return ret; } break; break; default: GF_ASSERT (op); } return 0; } static int glusterd_op_sm_inject_all_acc () { int32_t ret = -1; ret = glusterd_op_sm_inject_event (GD_OP_EVENT_ALL_ACC, NULL); gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } int glusterd_op_build_payload (glusterd_op_t op, gd1_mgmt_stage_op_req **req) { int len = 0; int ret = -1; gd1_mgmt_stage_op_req *stage_req = NULL; void *ctx = NULL; GF_ASSERT (op < GD_OP_MAX); GF_ASSERT (op > GD_OP_NONE); GF_ASSERT (req); len = glusterd_op_get_len (op); stage_req = GF_CALLOC (1, sizeof (*stage_req), gf_gld_mt_mop_stage_req_t); if (!stage_req) { gf_log ("", GF_LOG_ERROR, "Out of Memory"); goto out; } glusterd_get_uuid (&stage_req->uuid); stage_req->op = op; //stage_req->buf.buf_len = len; ctx = (void*)glusterd_op_get_ctx (op); if (!ctx) { gf_log ("", GF_LOG_ERROR, "Null Context for " "op %d", op); ret = -1; goto out; } switch (op) { case GD_OP_CREATE_VOLUME: { dict_t *dict = ctx; ++glusterfs_port; ret = dict_set_int32 (dict, "port", glusterfs_port); ret = dict_allocate_and_serialize (dict, &stage_req->buf.buf_val, (size_t *)&stage_req->buf.buf_len); if (ret) { goto out; } } break; case GD_OP_START_VOLUME: { glusterd_op_start_volume_ctx_t *ctx1 = ctx; stage_req->buf.buf_len = strlen (ctx1->volume_name); stage_req->buf.buf_val = gf_strdup (ctx1->volume_name); } break; case GD_OP_DELETE_VOLUME: { glusterd_op_delete_volume_ctx_t *ctx1 = ctx; stage_req->buf.buf_len = strlen (ctx1->volume_name); stage_req->buf.buf_val = gf_strdup (ctx1->volume_name); } break; case GD_OP_STOP_VOLUME: case GD_OP_ADD_BRICK: case GD_OP_REPLACE_BRICK: case GD_OP_SET_VOLUME: case GD_OP_REMOVE_BRICK: case GD_OP_LOG_FILENAME: case GD_OP_LOG_ROTATE: case GD_OP_SYNC_VOLUME: { dict_t *dict = ctx; ret = dict_allocate_and_serialize (dict, &stage_req->buf.buf_val, (size_t *)&stage_req->buf.buf_len); if (ret) { goto out; } } break; default: break; } *req = stage_req; ret = 0; out: return ret; } static int glusterd_op_stage_create_volume (gd1_mgmt_stage_op_req *req, char **op_errstr) { int ret = 0; dict_t *dict = NULL; char *volname = NULL; gf_boolean_t exists = _gf_false; char *bricks = NULL; char *brick_list = NULL; char *free_ptr = NULL; glusterd_brickinfo_t *brick_info = NULL; int32_t brick_count = 0; int32_t i = 0; struct stat st_buf = {0,}; char *brick = NULL; char *tmpptr = NULL; char cmd_str[1024]; xlator_t *this = NULL; glusterd_conf_t *priv = NULL; char msg[2048] = {0,}; GF_ASSERT (req); this = THIS; if (!this) { gf_log ("glusterd", GF_LOG_ERROR, "this is NULL"); goto out; } priv = this->private; if (!priv) { gf_log ("glusterd", GF_LOG_ERROR, "priv is NULL"); goto out; } dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } exists = glusterd_check_volume_exists (volname); if (exists) { gf_log ("", GF_LOG_ERROR, "Volume with name: %s exists", volname); ret = -1; } else { ret = 0; } ret = dict_get_int32 (dict, "count", &brick_count); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get count"); goto out; } ret = dict_get_str (dict, "bricks", &bricks); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get bricks"); goto out; } if (bricks) { brick_list = gf_strdup (bricks); if (!brick_list) { ret = -1; gf_log ("", GF_LOG_ERROR, "Out of memory"); goto out; } else { free_ptr = brick_list; } } while ( i < brick_count) { i++; brick= strtok_r (brick_list, " \n", &tmpptr); brick_list = tmpptr; ret = glusterd_brickinfo_from_brick (brick, &brick_info); if (ret) goto out; snprintf (cmd_str, 1024, "%s", brick_info->path); ret = glusterd_resolve_brick (brick_info); if (ret) { gf_log ("glusterd", GF_LOG_ERROR, "cannot resolve " "brick: %s:%s", brick_info->hostname, brick_info->path); goto out; } if (!uuid_compare (brick_info->uuid, priv->uuid)) { ret = stat (cmd_str, &st_buf); if (ret == -1) { snprintf (msg, 2048,"Volume name %s, brick" ": %s:%s, path %s not present", volname, brick_info->hostname, brick_info->path, brick_info->path); gf_log ("glusterd",GF_LOG_ERROR, "%s", msg); *op_errstr = gf_strdup (msg); goto out; } if (!S_ISDIR (st_buf.st_mode)) { snprintf (msg, 2048, "Volume name %s, brick" ": %s, path %s is not a directory", volname, brick, brick_info->path); gf_log ("glusterd", GF_LOG_ERROR, "%s", msg); *op_errstr = gf_strdup (msg); ret = -1; goto out; } brick_list = tmpptr; } glusterd_brickinfo_delete (brick_info); } out: if (dict) dict_unref (dict); if (free_ptr) GF_FREE (free_ptr); gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } static int glusterd_op_stage_start_volume (gd1_mgmt_stage_op_req *req, char **op_errstr) { int ret = 0; char volname [1024] = {0,}; gf_boolean_t exists = _gf_false; glusterd_volinfo_t *volinfo = NULL; glusterd_brickinfo_t *brickinfo = NULL; struct stat statbuf = {0,}; char msg[2048]; glusterd_conf_t *priv = NULL; GF_ASSERT (req); priv = THIS->private; if (!priv) { gf_log ("glusterd", GF_LOG_ERROR, "priv is NULL"); ret = -1; goto out; } strncpy (volname, req->buf.buf_val, req->buf.buf_len); //volname = req->buf.buf_val; exists = glusterd_check_volume_exists (volname); if (!exists) { snprintf (msg, 2048, "Volume with name %s does not exist", volname); gf_log ("", GF_LOG_ERROR, "%s", msg); *op_errstr = gf_strdup (msg); ret = -1; } else { ret = 0; } ret = glusterd_volinfo_find (volname, &volinfo); if (ret) goto out; list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) { ret = glusterd_resolve_brick (brickinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to resolve brick" " with hostname: %s, export: %s", brickinfo->hostname,brickinfo->path); goto out; } if (!uuid_compare (brickinfo->uuid, priv->uuid)) { ret = stat (brickinfo->path, &statbuf); if (ret == -1) { snprintf (msg, 2048, "Volume name %s, brick" ": %s:%s, path %s is not present", volname, brickinfo->hostname, brickinfo->path, brickinfo->path); gf_log ("glusterd", GF_LOG_ERROR, "%s", msg); *op_errstr = gf_strdup (msg); goto out; } } if (GLUSTERD_STATUS_STARTED == volinfo->status) { snprintf (msg, 2048, "Volume %s already started", volname); gf_log ("glusterd", GF_LOG_ERROR, "%s", msg); *op_errstr = gf_strdup (msg); ret = -1; } } out: gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } static int glusterd_op_stop_volume_args_get (gd1_mgmt_stage_op_req *req, dict_t *dict, char** volname, int *flags) { int ret = -1; if (!req || !dict || !volname || !flags) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "volname", volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } ret = dict_get_int32 (dict, "flags", flags); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get flags"); goto out; } out: return ret; } static int glusterd_op_stage_stop_volume (gd1_mgmt_stage_op_req *req) { int ret = -1; dict_t *dict = NULL; char *volname = NULL; int flags = 0; gf_boolean_t exists = _gf_false; glusterd_volinfo_t *volinfo = NULL; dict = dict_new (); if (!dict) goto out; ret = glusterd_op_stop_volume_args_get (req, dict, &volname, &flags); if (ret) goto out; exists = glusterd_check_volume_exists (volname); if (!exists) { gf_log ("", GF_LOG_ERROR, "Volume with name %s does not exist", volname); ret = -1; } else { ret = 0; } ret = glusterd_volinfo_find (volname, &volinfo); if (ret) goto out; if (!(flags & GF_CLI_FLAG_OP_FORCE)) { ret = glusterd_is_volume_started (volinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Volume %s " "has not been started", volname); goto out; } } out: if (dict) dict_unref (dict); gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } static int glusterd_op_stage_delete_volume (gd1_mgmt_stage_op_req *req) { int ret = 0; char volname [1024] = {0,}; gf_boolean_t exists = _gf_false; glusterd_volinfo_t *volinfo = NULL; GF_ASSERT (req); strncpy (volname, req->buf.buf_val, req->buf.buf_len); exists = glusterd_check_volume_exists (volname); if (!exists) { gf_log ("", GF_LOG_ERROR, "Volume with name %s does not exist", volname); ret = -1; goto out; } else { ret = 0; } ret = glusterd_volinfo_find (volname, &volinfo); if (ret) goto out; ret = glusterd_is_volume_started (volinfo); if (!ret) { gf_log ("", GF_LOG_ERROR, "Volume %s has been started." "Volume needs to be stopped before deletion.", volname); ret = -1; goto out; } ret = 0; out: gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } static int glusterd_op_stage_add_brick (gd1_mgmt_stage_op_req *req, char **op_errstr) { int ret = 0; dict_t *dict = NULL; char *volname = NULL; int count = 0; int i = 0; char *bricks = NULL; char *brick_list = NULL; char *saveptr = NULL; char *free_ptr = NULL; char *brick = NULL; glusterd_brickinfo_t *brickinfo = NULL; glusterd_volinfo_t *volinfo = NULL; struct stat st_buf = {0,}; char cmd_str[1024]; glusterd_conf_t *priv = NULL; char msg[2048] = {0,}; GF_ASSERT (req); priv = THIS->private; if (!priv) goto out; dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } ret = glusterd_volinfo_find (volname, &volinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to find volume: %s", volname); goto out; } ret = dict_get_int32 (dict, "count", &count); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get count"); goto out; } ret = dict_get_str (dict, "bricks", &bricks); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get bricks"); goto out; } if (bricks) { brick_list = gf_strdup (bricks); free_ptr = brick_list; } if (count) brick = strtok_r (brick_list+1, " \n", &saveptr); while ( i < count) { ret = glusterd_brickinfo_get (brick, volinfo, &brickinfo); if (!ret) { gf_log ("", GF_LOG_ERROR, "Adding duplicate brick: %s", brick); ret = -1; goto out; } else { ret = glusterd_brickinfo_from_brick(brick, &brickinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Add-brick: Unable" " to get brickinfo"); goto out; } } snprintf (cmd_str, 1024, "%s", brickinfo->path); ret = glusterd_resolve_brick (brickinfo); if (ret) { gf_log ("glusterd", GF_LOG_ERROR, "resolve brick failed"); goto out; } if (!uuid_compare (brickinfo->uuid, priv->uuid)) { ret = stat (cmd_str, &st_buf); if (ret == -1) { snprintf (msg, 2048, "Volume name %s, brick" ": %s, path %s not present", volname, brick, brickinfo->path); gf_log ("glusterd", GF_LOG_ERROR, "%s", msg); *op_errstr = gf_strdup (msg); goto out; } if (!S_ISDIR (st_buf.st_mode)) { snprintf (msg, 2048, "Volume name %s, brick" ": %s, path %s is not a directory", volname, brick, brickinfo->path); gf_log ("glusterd", GF_LOG_ERROR, "%s", msg); *op_errstr = gf_strdup (msg); ret = -1; goto out; } } glusterd_brickinfo_delete (brickinfo); brick = strtok_r (NULL, " \n", &saveptr); i++; } out: if (dict) dict_unref (dict); if (free_ptr) GF_FREE (free_ptr); gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } static int glusterd_op_stage_replace_brick (gd1_mgmt_stage_op_req *req) { int ret = 0; dict_t *dict = NULL; char *src_brick = NULL; char *dst_brick = NULL; char *volname = NULL; glusterd_volinfo_t *volinfo = NULL; glusterd_brickinfo_t *src_brickinfo = NULL; gf_boolean_t exists = _gf_false; GF_ASSERT (req); dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "src-brick", &src_brick); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get src brick"); goto out; } gf_log ("", GF_LOG_DEBUG, "src brick=%s", src_brick); ret = dict_get_str (dict, "dst-brick", &dst_brick); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get dest brick"); goto out; } gf_log ("", GF_LOG_DEBUG, "dst brick=%s", dst_brick); ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } ret = glusterd_volinfo_find (volname, &volinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to allocate memory"); goto out; } ret = glusterd_brickinfo_get (src_brick, volinfo, &src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Unable to get src-brickinfo"); goto out; } if (!glusterd_is_local_addr (src_brickinfo->hostname)) { gf_log ("", GF_LOG_DEBUG, "I AM THE SOURCE HOST"); exists = glusterd_check_volume_exists (volname); if (!exists) { gf_log ("", GF_LOG_ERROR, "Volume with name: %s " "does not exist", volname); ret = -1; goto out; } } ret = 0; out: if (dict) dict_unref (dict); gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } static int glusterd_op_stage_log_filename (gd1_mgmt_stage_op_req *req) { int ret = -1; dict_t *dict = NULL; char *volname = NULL; gf_boolean_t exists = _gf_false; GF_ASSERT (req); dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } exists = glusterd_check_volume_exists (volname); if (!exists) { gf_log ("", GF_LOG_ERROR, "Volume with name: %s not exists", volname); ret = -1; goto out; } out: if (dict) dict_unref (dict); gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } static int glusterd_op_stage_log_rotate (gd1_mgmt_stage_op_req *req) { int ret = -1; dict_t *dict = NULL; char *volname = NULL; gf_boolean_t exists = _gf_false; GF_ASSERT (req); dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } exists = glusterd_check_volume_exists (volname); if (!exists) { gf_log ("", GF_LOG_ERROR, "Volume with name: %s not exists", volname); ret = -1; goto out; } out: if (dict) dict_unref (dict); gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } static int glusterd_op_stage_set_volume (gd1_mgmt_stage_op_req *req) { int ret = 0; dict_t *dict = NULL; char *volname = NULL; gf_boolean_t exists = _gf_false; char *key = NULL; char str[100] = {0, }; int count = 0; GF_ASSERT (req); dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } exists = glusterd_check_volume_exists (volname); if (!exists) { gf_log ("", GF_LOG_ERROR, "Volume with name: %s " "does not exist", volname); ret = -1; goto out; } for ( count = 1; ret != -1 ; count++ ) { sprintf (str, "key%d", count); ret = dict_get_str (dict, str, &key); if (ret) break; exists = glusterd_check_option_exists(key); if (!exists) { gf_log ("", GF_LOG_ERROR, "Option with name: %s " "does not exist", key); ret = -1; goto out; } } if ( count == 1 ) { gf_log ("", GF_LOG_ERROR, "No options received "); ret = -1; goto out; } ret = 0; out: gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } char *set_option_list[] = { "max-file-size", "min-file-size", "cache-timeout", "priority", "entry-change-log", "read-subvolume", "background-self-heal-count", "metadata-self-heal", "data-self-heal", "entry-self-heal", "strict-readdir", "data-self-heal-window-size", "data-change-log", "metadata-change-log", "frame-timeout", "ping-timeout", "cache-size", "disk-usage-limit", "min-free-disk-limit", "block-size", "inode-lru-limit", "thread-count" , "lookup-unhashed", "min-free-disk" }; gf_boolean_t glusterd_check_option_exists(char *optstring) { //struct set_option_list *list; char **list = NULL; for (list = &set_option_list[0]; *list ;list++) if (!strcmp (optstring, *list)) return _gf_true; return _gf_false; } static int glusterd_op_stage_remove_brick (gd1_mgmt_stage_op_req *req) { int ret = -1; dict_t *dict = NULL; char *volname = NULL; glusterd_volinfo_t *volinfo = NULL; dict_t *ctx = NULL; char *errstr = NULL; GF_ASSERT (req); dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } ret = glusterd_volinfo_find (volname, &volinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Volume %s does not exist", volname); goto out; } if (volinfo->brick_count == 1) { ctx = glusterd_op_get_ctx (GD_OP_REMOVE_BRICK); if (!ctx) { gf_log ("", GF_LOG_ERROR, "Operation Context is not present"); ret = -1; goto out; } errstr = gf_strdup ("Deleting the last brick of the " "volume is not allowed"); if (!errstr) { gf_log ("", GF_LOG_ERROR, "Out of memory"); ret = -1; goto out; } ret = dict_set_dynstr (ctx, "errstr", errstr); if (ret) { GF_FREE (errstr); gf_log ("", GF_LOG_DEBUG, "failed to set pump status in ctx"); goto out; } ret = -1; goto out; } out: gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } static int glusterd_op_stage_sync_volume (gd1_mgmt_stage_op_req *req, char **op_errstr) { int ret = -1; dict_t *dict = NULL; char *volname = NULL; char *hostname = NULL; gf_boolean_t exists = _gf_false; glusterd_peerinfo_t *peerinfo = NULL; char msg[2048] = {0,}; GF_ASSERT (req); dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "hostname", &hostname); if (ret) { snprintf (msg, sizeof (msg), "hostname couldn't be " "retrieved from msg"); *op_errstr = gf_strdup (msg); goto out; } ret = glusterd_is_local_addr (hostname); if (ret) { ret = glusterd_friend_find (NULL, hostname, &peerinfo); if (ret) { snprintf (msg, sizeof (msg), "%s, is not a friend", hostname); *op_errstr = gf_strdup (msg); goto out; } if (!peerinfo->connected) { snprintf (msg, sizeof (msg), "%s, is not connected at " "the moment", hostname); *op_errstr = gf_strdup (msg); ret = -1; goto out; } } else { //volname is not present in case of sync all ret = dict_get_str (dict, "volname", &volname); if (!ret) { exists = glusterd_check_volume_exists (volname); if (!exists) { snprintf (msg, sizeof (msg), "volume: %s, " "doesn't exist", volname); *op_errstr = gf_strdup (msg); ret = -1; goto out; } } else { ret = 0; } } out: if (dict) dict_unref (dict); gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } static int glusterd_op_create_volume (gd1_mgmt_stage_op_req *req, char **op_errstr) { int ret = 0; dict_t *dict = NULL; char *volname = NULL; glusterd_conf_t *priv = NULL; glusterd_volinfo_t *volinfo = NULL; glusterd_brickinfo_t *brickinfo = NULL; xlator_t *this = NULL; char *brick = NULL; int32_t count = 0; int32_t i = 1; char *bricks = NULL; char *brick_list = NULL; char *free_ptr = NULL; char *saveptr = NULL; int32_t sub_count = 0; char *trans_type = NULL; char *str = NULL; GF_ASSERT (req); this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = glusterd_volinfo_new (&volinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to allocate memory"); goto out; } ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } strncpy (volinfo->volname, volname, GLUSTERD_MAX_VOLUME_NAME); GF_ASSERT (volinfo->volname); ret = dict_get_int32 (dict, "type", &volinfo->type); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get type"); goto out; } ret = dict_get_int32 (dict, "count", &volinfo->brick_count); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get count"); goto out; } ret = dict_get_int32 (dict, "port", &volinfo->port); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get port"); goto out; } count = volinfo->brick_count; ret = dict_get_str (dict, "bricks", &bricks); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get bricks"); goto out; } if (GF_CLUSTER_TYPE_REPLICATE == volinfo->type) { ret = dict_get_int32 (dict, "replica-count", &sub_count); if (ret) goto out; } else if (GF_CLUSTER_TYPE_STRIPE == volinfo->type) { ret = dict_get_int32 (dict, "stripe-count", &sub_count); if (ret) goto out; } ret = dict_get_str (dict, "transport", &trans_type); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get transport"); goto out; } ret = dict_get_str (dict, "volume-id", &str); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume-id"); goto out; } ret = uuid_parse (str, volinfo->volume_id); if (ret) { gf_log ("", GF_LOG_ERROR, "unable to parse uuid %s", str); goto out; } if (strcasecmp (trans_type, "rdma") == 0) { volinfo->transport_type = GF_TRANSPORT_RDMA; } else { volinfo->transport_type = GF_TRANSPORT_TCP; } volinfo->sub_count = sub_count; if (bricks) { brick_list = gf_strdup (bricks); free_ptr = brick_list; } if (count) brick = strtok_r (brick_list+1, " \n", &saveptr); while ( i <= count) { ret = glusterd_brickinfo_from_brick (brick, &brickinfo); if (ret) goto out; list_add_tail (&brickinfo->brick_list, &volinfo->bricks); brick = strtok_r (NULL, " \n", &saveptr); i++; } list_add_tail (&volinfo->vol_list, &priv->volumes); volinfo->version++; volinfo->defrag_status = 0; ret = glusterd_store_create_volume (volinfo); if (ret) goto out; ret = glusterd_create_volfiles (volinfo); ret = glusterd_volume_compute_cksum (volinfo); if (ret) goto out; out: if (dict) dict_unref (dict); if (free_ptr) GF_FREE(free_ptr); return ret; } static int glusterd_op_add_brick (gd1_mgmt_stage_op_req *req, char **op_errstr) { int ret = 0; dict_t *dict = NULL; char *volname = NULL; glusterd_conf_t *priv = NULL; glusterd_volinfo_t *volinfo = NULL; glusterd_brickinfo_t *brickinfo = NULL; xlator_t *this = NULL; char *brick = NULL; int32_t count = 0; int32_t i = 1; char *bricks = NULL; char *brick_list = NULL; char *free_ptr1 = NULL; char *free_ptr2 = NULL; char *saveptr = NULL; gf_boolean_t glfs_started = _gf_false; int32_t mybrick = 0; GF_ASSERT (req); this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } ret = glusterd_volinfo_find (volname, &volinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to allocate memory"); goto out; } ret = dict_get_int32 (dict, "count", &count); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get count"); goto out; } volinfo->brick_count += count; ret = dict_get_str (dict, "bricks", &bricks); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get bricks"); goto out; } if (bricks) { brick_list = gf_strdup (bricks); free_ptr1 = brick_list; } if (count) brick = strtok_r (brick_list+1, " \n", &saveptr); while ( i <= count) { ret = glusterd_brickinfo_from_brick (brick, &brickinfo); if (ret) goto out; list_add_tail (&brickinfo->brick_list, &volinfo->bricks); brick = strtok_r (NULL, " \n", &saveptr); i++; } brick_list = gf_strdup (bricks); free_ptr2 = brick_list; i = 1; if (count) brick = strtok_r (brick_list+1, " \n", &saveptr); while (i <= count) { ret = glusterd_brickinfo_get (brick, volinfo, &brickinfo); if (ret) goto out; ret = glusterd_resolve_brick (brickinfo); if (!ret && (!uuid_compare (brickinfo->uuid, priv->uuid)) && (GLUSTERD_STATUS_STARTED == volinfo->status)) { ret = glusterd_create_volfiles (volinfo); if (ret) goto out; gf_log ("", GF_LOG_NORMAL, "About to start glusterfs" " for brick %s:%s", brickinfo->hostname, brickinfo->path); ret = glusterd_volume_start_glusterfs (volinfo, brickinfo, mybrick); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to start " "glusterfs, ret: %d", ret); goto out; } glfs_started = _gf_true; mybrick++; } i++; brick = strtok_r (NULL, " \n", &saveptr); } if (!glfs_started) { ret = glusterd_create_volfiles (volinfo); if (ret) goto out; } volinfo->version++; volinfo->defrag_status = 0; ret = glusterd_store_update_volume (volinfo); if (ret) goto out; ret = glusterd_volume_compute_cksum (volinfo); if (ret) goto out; if (GLUSTERD_STATUS_STARTED == volinfo->status) ret = glusterd_check_generate_start_nfs (volinfo); out: if (dict) dict_unref (dict); if (free_ptr1) GF_FREE (free_ptr1); if (free_ptr2) GF_FREE (free_ptr2); return ret; } static int rb_send_xattr_command (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *src_brickinfo, glusterd_brickinfo_t *dst_brickinfo, const char *xattr_key, const char *value) { glusterd_conf_t *priv = NULL; char mount_point_path[PATH_MAX] = {0,}; struct stat buf; int ret = -1; priv = THIS->private; snprintf (mount_point_path, PATH_MAX, "%s/vols/%s/%s", priv->workdir, volinfo->volname, RB_CLIENT_MOUNTPOINT); ret = stat (mount_point_path, &buf); if (ret) { gf_log ("", GF_LOG_DEBUG, "stat failed. Could not send " " %s command", xattr_key); goto out; } ret = lsetxattr (mount_point_path, xattr_key, value, strlen (value), 0); if (ret) { gf_log ("", GF_LOG_DEBUG, "setxattr failed"); goto out; } ret = 0; out: return ret; } static int rb_spawn_dst_brick (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *brickinfo) { glusterd_conf_t *priv = NULL; char cmd_str[8192] = {0,}; int ret = -1; priv = THIS->private; snprintf (cmd_str, 8192, "%s/sbin/glusterfs -f %s/vols/%s/%s -p %s/vols/%s/%s", GFS_PREFIX, priv->workdir, volinfo->volname, RB_DSTBRICKVOL_FILENAME, priv->workdir, volinfo->volname, RB_DSTBRICK_PIDFILE); ret = gf_system (cmd_str); if (ret) { gf_log ("", GF_LOG_DEBUG, "Could not start glusterfs"); goto out; } gf_log ("", GF_LOG_DEBUG, "Successfully started glusterfs: brick=%s:%s", brickinfo->hostname, brickinfo->path); ret = 0; out: return ret; } static int rb_spawn_glusterfs_client (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *brickinfo) { glusterd_conf_t *priv = NULL; char cmd_str[8192] = {0,}; struct stat buf; int ret = -1; priv = THIS->private; snprintf (cmd_str, 4096, "%s/sbin/glusterfs -f %s/vols/%s/%s %s/vols/%s/%s", GFS_PREFIX, priv->workdir, volinfo->volname, RB_CLIENTVOL_FILENAME, priv->workdir, volinfo->volname, RB_CLIENT_MOUNTPOINT); ret = gf_system (cmd_str); if (ret) { gf_log ("", GF_LOG_DEBUG, "Could not start glusterfs"); goto out; } gf_log ("", GF_LOG_DEBUG, "Successfully started glusterfs: brick=%s:%s", brickinfo->hostname, brickinfo->path); memset (cmd_str, 0, sizeof (cmd_str)); snprintf (cmd_str, 4096, "%s/vols/%s/%s", priv->workdir, volinfo->volname, RB_CLIENT_MOUNTPOINT); ret = stat (cmd_str, &buf); if (ret) { gf_log ("", GF_LOG_DEBUG, "stat on mountpoint failed"); goto out; } gf_log ("", GF_LOG_DEBUG, "stat on mountpoint succeeded"); ret = 0; out: return ret; } static const char *client_volfile_str = "volume mnt-client\n" " type protocol/client\n" " option remote-host %s\n" " option remote-subvolume %s\n" " option remote-port %d\n" "end-volume\n" "volume mnt-wb\n" " type performance/write-behind\n" " subvolumes mnt-client\n" "end-volume\n"; static int rb_generate_client_volfile (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *src_brickinfo) { glusterd_conf_t *priv = NULL; FILE *file = NULL; char filename[PATH_MAX]; int ret = -1; priv = THIS->private; gf_log ("", GF_LOG_DEBUG, "Creating volfile"); snprintf (filename, PATH_MAX, "%s/vols/%s/%s", priv->workdir, volinfo->volname, RB_CLIENTVOL_FILENAME); file = fopen (filename, "w+"); if (!file) { gf_log ("", GF_LOG_DEBUG, "Open of volfile failed"); ret = -1; goto out; } GF_ASSERT (src_brickinfo->port); fprintf (file, client_volfile_str, src_brickinfo->hostname, src_brickinfo->path, src_brickinfo->port); fclose (file); ret = 0; out: return ret; } static const char *dst_brick_volfile_str = "volume src-posix\n" "type storage/posix\n" "option directory %s\n" "end-volume\n" "volume %s\n" "type features/locks\n" "subvolumes src-posix\n" "end-volume\n" "volume src-server\n" "type protocol/server\n" "option auth.addr.%s.allow *\n" "option listen-port 34034\n" "option transport-type tcp\n" "subvolumes %s\n" "end-volume\n"; static int rb_generate_dst_brick_volfile (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *dst_brickinfo) { glusterd_conf_t *priv = NULL; FILE *file = NULL; char filename[PATH_MAX]; int ret = -1; priv = THIS->private; gf_log ("", GF_LOG_DEBUG, "Creating volfile"); snprintf (filename, PATH_MAX, "%s/vols/%s/%s", priv->workdir, volinfo->volname, RB_DSTBRICKVOL_FILENAME); file = fopen (filename, "w+"); if (!file) { gf_log ("", GF_LOG_DEBUG, "Open of volfile failed"); ret = -1; goto out; } fprintf (file, dst_brick_volfile_str, dst_brickinfo->path, dst_brickinfo->path, dst_brickinfo->path, dst_brickinfo->path); fclose (file); ret = 0; out: return ret; } static int rb_mountpoint_mkdir (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *src_brickinfo) { glusterd_conf_t *priv = NULL; char mount_point_path[PATH_MAX] = {0,}; int ret = -1; priv = THIS->private; snprintf (mount_point_path, PATH_MAX, "%s/vols/%s/%s", priv->workdir, volinfo->volname, RB_CLIENT_MOUNTPOINT); ret = mkdir (mount_point_path, 0777); if (ret && (errno != EEXIST)) { gf_log ("", GF_LOG_DEBUG, "mkdir failed, errno: %d", errno); goto out; } ret = 0; out: return ret; } static int rb_mountpoint_rmdir (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *src_brickinfo) { glusterd_conf_t *priv = NULL; char mount_point_path[PATH_MAX] = {0,}; int ret = -1; priv = THIS->private; snprintf (mount_point_path, PATH_MAX, "%s/vols/%s/%s", priv->workdir, volinfo->volname, RB_CLIENT_MOUNTPOINT); ret = rmdir (mount_point_path); if (ret) { gf_log ("", GF_LOG_DEBUG, "rmdir failed"); goto out; } ret = 0; out: return ret; } static int rb_destroy_maintainence_client (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *src_brickinfo) { glusterd_conf_t *priv = NULL; char cmd_str[8192] = {0,}; char filename[PATH_MAX] = {0,}; struct stat buf; char mount_point_path[PATH_MAX] = {0,}; int ret = -1; priv = THIS->private; snprintf (mount_point_path, PATH_MAX, "%s/vols/%s/%s", priv->workdir, volinfo->volname, RB_CLIENT_MOUNTPOINT); ret = stat (mount_point_path, &buf); if (ret) { gf_log ("", GF_LOG_DEBUG, "stat failed. Cannot destroy maintainence " "client"); goto out; } snprintf (cmd_str, 8192, "/bin/umount -f %s/vols/%s/%s", priv->workdir, volinfo->volname, RB_CLIENT_MOUNTPOINT); ret = gf_system (cmd_str); if (ret) { gf_log ("", GF_LOG_DEBUG, "umount failed on maintainence client"); goto out; } ret = rb_mountpoint_rmdir (volinfo, src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "rmdir of mountpoint failed"); goto out; } snprintf (filename, PATH_MAX, "%s/vols/%s/%s", priv->workdir, volinfo->volname, RB_CLIENTVOL_FILENAME); ret = unlink (filename); if (ret) { gf_log ("", GF_LOG_DEBUG, "unlink failed"); goto out; } ret = 0; out: return ret; } static int rb_spawn_maintainence_client (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *src_brickinfo) { int ret = -1; ret = rb_generate_client_volfile (volinfo, src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Unable to generate client " "volfile"); goto out; } ret = rb_mountpoint_mkdir (volinfo, src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Unable to mkdir " "mountpoint"); goto out; } ret = rb_spawn_glusterfs_client (volinfo, src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Unable to start glusterfs"); goto out; } ret = 0; out: return ret; } static int rb_spawn_destination_brick (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *dst_brickinfo) { int ret = -1; ret = rb_generate_dst_brick_volfile (volinfo, dst_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Unable to generate client " "volfile"); goto out; } ret = rb_spawn_dst_brick (volinfo, dst_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Unable to start glusterfs"); goto out; } ret = 0; out: return ret; } static int rb_do_operation_start (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *src_brickinfo, glusterd_brickinfo_t *dst_brickinfo) { char start_value[8192] = {0,}; int ret = -1; gf_log ("", GF_LOG_NORMAL, "replace-brick sending start xattr"); ret = rb_spawn_maintainence_client (volinfo, src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Could not spawn maintainence " "client"); goto out; } snprintf (start_value, 8192, "%s:%s:", dst_brickinfo->hostname, dst_brickinfo->path); ret = rb_send_xattr_command (volinfo, src_brickinfo, dst_brickinfo, RB_PUMP_START_CMD, start_value); if (ret) { gf_log ("", GF_LOG_DEBUG, "Failed to send command to pump"); goto out; } ret = rb_destroy_maintainence_client (volinfo, src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Failed to destroy maintainence " "client"); goto out; } ret = 0; out: return ret; } static int rb_do_operation_pause (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *src_brickinfo, glusterd_brickinfo_t *dst_brickinfo) { int ret = -1; gf_log ("", GF_LOG_NORMAL, "replace-brick send pause xattr"); ret = rb_spawn_maintainence_client (volinfo, src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Could not spawn maintainence " "client"); goto out; } ret = rb_send_xattr_command (volinfo, src_brickinfo, dst_brickinfo, RB_PUMP_PAUSE_CMD, "jargon"); if (ret) { gf_log ("", GF_LOG_DEBUG, "Failed to send command to pump"); goto out; } ret = rb_destroy_maintainence_client (volinfo, src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Failed to destroy maintainence " "client"); goto out; } ret = 0; out: return ret; } static int rb_kill_destination_brick (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *dst_brickinfo) { glusterd_conf_t *priv = NULL; char pidfile[PATH_MAX] = {0,}; priv = THIS->private; snprintf (pidfile, PATH_MAX, "%s/vols/%s/%s", priv->workdir, volinfo->volname, RB_DSTBRICK_PIDFILE); return glusterd_service_stop ("brick", pidfile, SIGQUIT, _gf_true); } static int rb_do_operation_abort (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *src_brickinfo, glusterd_brickinfo_t *dst_brickinfo) { int ret = -1; gf_log ("", GF_LOG_DEBUG, "replace-brick sending abort xattr"); ret = rb_spawn_maintainence_client (volinfo, src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Could not spawn maintainence " "client"); goto out; } ret = rb_send_xattr_command (volinfo, src_brickinfo, dst_brickinfo, RB_PUMP_ABORT_CMD, "jargon"); if (ret) { gf_log ("", GF_LOG_DEBUG, "Failed to send command to pump"); goto out; } ret = rb_destroy_maintainence_client (volinfo, src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Failed to destroy maintainence " "client"); goto out; } ret = 0; out: return ret; } static int rb_do_operation_commit (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *src_brickinfo, glusterd_brickinfo_t *dst_brickinfo) { gf_log ("", GF_LOG_DEBUG, "received commit on %s:%s to %s:%s " "on volume %s", src_brickinfo->hostname, src_brickinfo->path, dst_brickinfo->hostname, dst_brickinfo->path, volinfo->volname); return 0; } static int rb_get_xattr_command (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *src_brickinfo, glusterd_brickinfo_t *dst_brickinfo, const char *xattr_key, const char **value) { glusterd_conf_t *priv = NULL; char mount_point_path[PATH_MAX] = {0,}; struct stat buf; int ret = -1; priv = THIS->private; snprintf (mount_point_path, PATH_MAX, "%s/vols/%s/%s", priv->workdir, volinfo->volname, RB_CLIENT_MOUNTPOINT); ret = stat (mount_point_path, &buf); if (ret) { gf_log ("", GF_LOG_DEBUG, "stat failed. Could not send " " %s command", xattr_key); goto out; } ret = lgetxattr (mount_point_path, xattr_key, (char *)(*value), 8192); if (ret) { gf_log ("", GF_LOG_DEBUG, "setxattr failed"); goto out; } ret = 0; out: return ret; } static int rb_do_operation_status (glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *src_brickinfo, glusterd_brickinfo_t *dst_brickinfo) { const char *status = NULL; char *status_reply = NULL; dict_t *ctx = NULL; int ret = -1; if (!glusterd_is_local_addr (src_brickinfo->hostname)) { gf_log ("", GF_LOG_NORMAL, "I AM THE SOURCE HOST"); ret = rb_spawn_maintainence_client (volinfo, src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Could not spawn maintainence " "client"); goto out; } ret = rb_get_xattr_command (volinfo, src_brickinfo, dst_brickinfo, RB_PUMP_STATUS_CMD, &status); if (ret) { gf_log ("", GF_LOG_DEBUG, "Failed to get status from pump"); goto out; } gf_log ("", GF_LOG_DEBUG, "pump status is %s", status); ctx = glusterd_op_get_ctx (GD_OP_REPLACE_BRICK); if (!ctx) { gf_log ("", GF_LOG_ERROR, "Operation Context is not present"); ret = -1; goto out; } status_reply = gf_strdup (status); if (!status_reply) { gf_log ("", GF_LOG_ERROR, "Out of memory"); ret = -1; goto out; } ret = dict_set_dynstr (ctx, "status-reply", status_reply); if (ret) { gf_log ("", GF_LOG_DEBUG, "failed to set pump status in ctx"); goto out; } ret = rb_destroy_maintainence_client (volinfo, src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Failed to destroy maintainence " "client"); goto out; } } out: return ret; } static int glusterd_op_replace_brick (gd1_mgmt_stage_op_req *req) { int ret = 0; dict_t *dict = NULL; dict_t *ctx = NULL; gf1_cli_replace_op replace_op; glusterd_volinfo_t *volinfo = NULL; char *volname = NULL; xlator_t *this = NULL; glusterd_conf_t *priv = NULL; char *src_brick = NULL; char *dst_brick = NULL; glusterd_brickinfo_t *src_brickinfo = NULL; glusterd_brickinfo_t *dst_brickinfo = NULL; GF_ASSERT (req); this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "src-brick", &src_brick); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get src brick"); goto out; } gf_log (this->name, GF_LOG_DEBUG, "src brick=%s", src_brick); ret = dict_get_str (dict, "dst-brick", &dst_brick); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get dst brick"); goto out; } gf_log (this->name, GF_LOG_DEBUG, "dst brick=%s", dst_brick); ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } ret = dict_get_int32 (dict, "operation", (int32_t *)&replace_op); if (ret) { gf_log (this->name, GF_LOG_DEBUG, "dict_get on operation failed"); goto out; } ret = glusterd_volinfo_find (volname, &volinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to allocate memory"); goto out; } ret = glusterd_brickinfo_get (src_brick, volinfo, &src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Unable to get src-brickinfo"); goto out; } ret = glusterd_brickinfo_from_brick (dst_brick, &dst_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Unable to get dst-brickinfo"); goto out; } /* Set src-brick's port number to be used in the maintainance mount * after all commit acks are received. */ if (!glusterd_is_local_addr (src_brickinfo->hostname)) { gf_log ("", GF_LOG_NORMAL, "adding src-brick port no"); ctx = glusterd_op_get_ctx (GD_OP_REPLACE_BRICK); if (!ctx) { gf_log ("", GF_LOG_ERROR, "Operation Context is not present"); ret = -1; goto out; } ret = dict_set_int32 (ctx, "src-brick-port", src_brickinfo->port); if (ret) { gf_log ("", GF_LOG_DEBUG, "Could not set src-brick port no"); goto out; } } switch (replace_op) { case GF_REPLACE_OP_START: { if (!glusterd_is_local_addr (dst_brickinfo->hostname)) { gf_log ("", GF_LOG_NORMAL, "I AM THE DESTINATION HOST"); ret = rb_spawn_destination_brick (volinfo, dst_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Failed to spawn destination brick"); goto out; } } } break; case GF_REPLACE_OP_COMMIT: { gf_log ("", GF_LOG_DEBUG, "Received commit - doing nothing"); } break; case GF_REPLACE_OP_PAUSE: { gf_log ("", GF_LOG_DEBUG, "Recieved pause - doing nothing"); } break; case GF_REPLACE_OP_ABORT: { if (!glusterd_is_local_addr (dst_brickinfo->hostname)) { gf_log ("", GF_LOG_NORMAL, "I AM THE DESTINATION HOST"); ret = rb_kill_destination_brick (volinfo, dst_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Failed to kill destination brick"); goto out; } } } break; case GF_REPLACE_OP_STATUS: { gf_log ("", GF_LOG_DEBUG, "received status - doing nothing"); } break; default: ret = -1; goto out; } if (ret) goto out; out: if (dict) dict_unref (dict); return ret; } static int glusterd_op_set_volume (gd1_mgmt_stage_op_req *req) { int ret = 0; dict_t *dict = NULL; glusterd_volinfo_t *volinfo = NULL; char *volname = NULL; xlator_t *this = NULL; glusterd_conf_t *priv = NULL; int count = 1; char *key = NULL; char *value = NULL; char str[50] = {0, }; GF_ASSERT (req); this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } ret = glusterd_volinfo_find (volname, &volinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to allocate memory"); goto out; } for ( count = 1; ret != -1 ; count++ ) { sprintf (str, "key%d", count); ret = dict_get_str (dict, str, &key); if (ret) break; sprintf (str, "value%d", count); ret = dict_get_str (dict, str, &value); if (ret) { gf_log ("", GF_LOG_ERROR, "invalid key,value pair" "in 'volume set'"); ret = -1; goto out; } ret = set_xlator_option (volinfo->dict, key, value); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to set the options" "in 'volume set'"); ret = -1; goto out; } } if ( count == 1 ) { gf_log ("", GF_LOG_ERROR, "No options received "); ret = -1; goto out; } ret = glusterd_create_volfiles (volinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to create volfile for" " 'volume set'"); ret = -1; goto out; } gf_log ("", GF_LOG_DEBUG, "Received set volume command"); ret = 0; out: return ret; } static int glusterd_op_remove_brick (gd1_mgmt_stage_op_req *req) { int ret = -1; dict_t *dict = NULL; char *volname = NULL; glusterd_conf_t *priv = NULL; glusterd_volinfo_t *volinfo = NULL; glusterd_brickinfo_t *brickinfo = NULL; xlator_t *this = NULL; char *brick = NULL; int32_t count = 0; int32_t i = 1; gf_boolean_t glfs_stopped = _gf_false; int32_t mybrick = 0; char key[256] = {0,}; char *dup_brick = NULL; GF_ASSERT (req); this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } ret = glusterd_volinfo_find (volname, &volinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to allocate memory"); goto out; } ret = dict_get_int32 (dict, "count", &count); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get count"); goto out; } while ( i <= count) { snprintf (key, 256, "brick%d", i); ret = dict_get_str (dict, key, &brick); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get %s", key); goto out; } if (dup_brick) GF_FREE (dup_brick); dup_brick = gf_strdup (brick); if (!dup_brick) goto out; ret = glusterd_brickinfo_get (dup_brick, volinfo, &brickinfo); if (ret) goto out; ret = glusterd_resolve_brick (brickinfo); if (ret) goto out; if ((!uuid_compare (brickinfo->uuid, priv->uuid)) && (GLUSTERD_STATUS_STARTED == volinfo->status)) { gf_log ("", GF_LOG_NORMAL, "About to stop glusterfs" " for brick %s:%s", brickinfo->hostname, brickinfo->path); ret = glusterd_volume_stop_glusterfs (volinfo, brickinfo, mybrick); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to stop " "glusterfs, ret: %d", ret); goto out; } glfs_stopped = _gf_true; mybrick++; } glusterd_delete_volfile (volinfo, brickinfo); glusterd_store_delete_brick (volinfo, brickinfo); glusterd_brickinfo_delete (brickinfo); volinfo->brick_count--; i++; } ret = glusterd_create_volfiles (volinfo); if (ret) goto out; volinfo->version++; volinfo->defrag_status = 0; ret = glusterd_store_update_volume (volinfo); if (ret) goto out; ret = glusterd_volume_compute_cksum (volinfo); if (ret) goto out; if (GLUSTERD_STATUS_STARTED == volinfo->status) ret = glusterd_check_generate_start_nfs (volinfo); out: if (dict) dict_unref (dict); if (dup_brick) GF_FREE (dup_brick); return ret; } static int glusterd_op_delete_volume (gd1_mgmt_stage_op_req *req) { int ret = 0; char volname[1024] = {0,}; glusterd_conf_t *priv = NULL; glusterd_volinfo_t *volinfo = NULL; xlator_t *this = NULL; GF_ASSERT (req); this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); strncpy (volname, req->buf.buf_val, req->buf.buf_len); ret = glusterd_volinfo_find (volname, &volinfo); if (ret) goto out; ret = glusterd_store_delete_volume (volinfo); if (ret) goto out; ret = glusterd_volinfo_delete (volinfo); if (ret) goto out; out: return ret; } static int glusterd_op_start_volume (gd1_mgmt_stage_op_req *req, char **op_errstr) { int ret = 0; char volname[1024] = {0,}; glusterd_volinfo_t *volinfo = NULL; glusterd_conf_t *priv = NULL; glusterd_brickinfo_t *brickinfo = NULL; xlator_t *this = NULL; int32_t mybrick = 0; this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); GF_ASSERT (req); strncpy (volname, req->buf.buf_val, req->buf.buf_len); ret = glusterd_volinfo_find (volname, &volinfo); if (ret) goto out; list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) { if (uuid_is_null (brickinfo->uuid)) { ret = glusterd_resolve_brick (brickinfo); if (ret) { gf_log ("glusterd", GF_LOG_ERROR, "cannot resolve brick: %s:%s", brickinfo->hostname, brickinfo->path); goto out; } } if (!uuid_compare (brickinfo->uuid, priv->uuid)) { gf_log ("", GF_LOG_NORMAL, "About to start glusterfs" " for brick %s:%s", brickinfo->hostname, brickinfo->path); ret = glusterd_volume_start_glusterfs (volinfo, brickinfo, mybrick); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to start " "glusterfs, ret: %d", ret); goto out; } mybrick++; } } glusterd_set_volume_status (volinfo, GLUSTERD_STATUS_STARTED); ret = glusterd_store_update_volume (volinfo); if (ret) goto out; ret = glusterd_volume_compute_cksum (volinfo); if (ret) goto out; ret = glusterd_check_generate_start_nfs (volinfo); out: return ret; } static int glusterd_op_log_filename (gd1_mgmt_stage_op_req *req) { int ret = -1; dict_t *dict = NULL; glusterd_conf_t *priv = NULL; glusterd_volinfo_t *volinfo = NULL; glusterd_brickinfo_t *brickinfo = NULL; xlator_t *this = NULL; char *volname = NULL; char *brick = NULL; char *path = NULL; char logfile[PATH_MAX] = {0,}; char exp_path[PATH_MAX] = {0,}; struct stat stbuf = {0,}; GF_ASSERT (req); this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); dict = dict_new (); if (!dict) { gf_log ("", GF_LOG_ERROR, "ENOMEM, !dict"); goto out; } ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "volname not found"); goto out; } ret = dict_get_str (dict, "path", &path); if (ret) { gf_log ("", GF_LOG_ERROR, "path not found"); goto out; } ret = stat (path, &stbuf); if (!S_ISDIR (stbuf.st_mode)) { ret = -1; gf_log ("", GF_LOG_ERROR, "not a directory"); goto out; } ret = dict_get_str (dict, "brick", &brick); if (ret) goto out; if (!strchr (brick, ':')) brick = NULL; ret = glusterd_volinfo_find (volname, &volinfo); if (ret) goto out; list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) { if (uuid_compare (brickinfo->uuid, priv->uuid)) continue; if (brick && strcmp (brickinfo->path, brick)) continue; GLUSTERD_REMOVE_SLASH_FROM_PATH (brickinfo->path, exp_path); snprintf (logfile, PATH_MAX, "%s/%s.log", path, exp_path); if (brickinfo->logfile) GF_FREE (brickinfo->logfile); brickinfo->logfile = gf_strdup (logfile); } ret = 0; out: if (dict) dict_unref (dict); return ret; } static int glusterd_op_log_rotate (gd1_mgmt_stage_op_req *req) { int ret = -1; dict_t *dict = NULL; glusterd_conf_t *priv = NULL; glusterd_volinfo_t *volinfo = NULL; glusterd_brickinfo_t *brickinfo = NULL; xlator_t *this = NULL; char *volname = NULL; char *brick = NULL; char path[PATH_MAX] = {0,}; char logfile[PATH_MAX] = {0,}; char pidfile[PATH_MAX] = {0,}; FILE *file = NULL; pid_t pid = 0; uint64_t key = 0; GF_ASSERT (req); this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); dict = dict_new (); if (!dict) { gf_log ("", GF_LOG_ERROR, "ENOMEM, !dict"); goto out; } ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "volname not found"); goto out; } ret = dict_get_uint64 (dict, "rotate-key", &key); if (ret) { gf_log ("", GF_LOG_ERROR, "rotate key not found"); goto out; } ret = dict_get_str (dict, "brick", &brick); if (ret) goto out; if (!strchr (brick, ':')) brick = NULL; ret = glusterd_volinfo_find (volname, &volinfo); if (ret) goto out; list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) { if (uuid_compare (brickinfo->uuid, priv->uuid)) continue; if (brick && strcmp (brickinfo->path, brick)) continue; GLUSTERD_GET_VOLUME_DIR (path, volinfo, priv); GLUSTERD_GET_BRICK_PIDFILE (pidfile, path, brickinfo->hostname, brickinfo->path); file = fopen (pidfile, "r+"); if (!file) { gf_log ("", GF_LOG_ERROR, "Unable to open pidfile: %s", pidfile); ret = -1; goto out; } ret = fscanf (file, "%d", &pid); if (ret <= 0) { gf_log ("", GF_LOG_ERROR, "Unable to read pidfile: %s", pidfile); ret = -1; goto out; } fclose (file); file = NULL; snprintf (logfile, PATH_MAX, "%s.%"PRIu64, brickinfo->logfile, key); ret = rename (brickinfo->logfile, logfile); if (ret) gf_log ("", GF_LOG_WARNING, "rename failed"); ret = kill (pid, SIGHUP); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to SIGHUP to %d", pid); goto out; } } ret = 0; out: if (dict) dict_unref (dict); return ret; } static int glusterd_op_stop_volume (gd1_mgmt_stage_op_req *req) { int ret = 0; int flags = 0; char *volname = NULL; glusterd_conf_t *priv = NULL; glusterd_volinfo_t *volinfo = NULL; xlator_t *this = NULL; dict_t *dict = NULL; glusterd_brickinfo_t *brickinfo = NULL; int32_t mybrick = 0; this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); dict = dict_new (); if (!dict) goto out; ret = glusterd_op_stop_volume_args_get (req, dict, &volname, &flags); if (ret) goto out; ret = glusterd_volinfo_find (volname, &volinfo); if (ret) goto out; list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) { if (uuid_is_null (brickinfo->uuid)) { ret = glusterd_resolve_brick (brickinfo); if (ret) { gf_log ("glusterd", GF_LOG_ERROR, "cannot resolve brick: %s:%s", brickinfo->hostname, brickinfo->path); goto out; } } if (!uuid_compare (brickinfo->uuid, priv->uuid)) { gf_log ("", GF_LOG_NORMAL, "About to stop glusterfs" " for brick %s:%s", brickinfo->hostname, brickinfo->path); ret = glusterd_volume_stop_glusterfs (volinfo, brickinfo, mybrick); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to stop " "glusterfs, ret: %d", ret); goto out; } mybrick++; } } glusterd_set_volume_status (volinfo, GLUSTERD_STATUS_STOPPED); ret = glusterd_store_update_volume (volinfo); if (ret) goto out; ret = glusterd_volume_compute_cksum (volinfo); if (glusterd_are_all_volumes_stopped ()) { if (glusterd_is_nfs_started ()) { ret = glusterd_nfs_server_stop (); if (ret) goto out; } } else { ret = glusterd_check_generate_start_nfs (volinfo); } out: if (flags & GF_CLI_FLAG_OP_FORCE) ret = 0; if (dict) dict_unref (dict); return ret; } static int glusterd_op_sync_volume (gd1_mgmt_stage_op_req *req, char **op_errstr, dict_t *rsp_dict) { int ret = -1; dict_t *dict = NULL; char *volname = NULL; char *hostname = NULL; char msg[2048] = {0,}; int count = 1; int vol_count = 0; glusterd_conf_t *priv = NULL; glusterd_volinfo_t *volinfo = NULL; xlator_t *this = NULL; GF_ASSERT (req); this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); dict = dict_new (); if (!dict) goto out; ret = dict_unserialize (req->buf.buf_val, req->buf.buf_len, &dict); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to unserialize dict"); goto out; } ret = dict_get_str (dict, "hostname", &hostname); if (ret) { snprintf (msg, sizeof (msg), "hostname couldn't be " "retrieved from msg"); *op_errstr = gf_strdup (msg); goto out; } if (glusterd_is_local_addr (hostname)) { ret = 0; goto out; } //volname is not present in case of sync all ret = dict_get_str (dict, "volname", &volname); if (!ret) { ret = glusterd_volinfo_find (volname, &volinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Volume with name: %s " "not exists", volname); goto out; } } if (!rsp_dict) { //this should happen only on source ret = 0; goto out; } if (volname) { ret = glusterd_add_volume_to_dict (volinfo, rsp_dict, 1); vol_count = 1; } else { list_for_each_entry (volinfo, &priv->volumes, vol_list) { ret = glusterd_add_volume_to_dict (volinfo, rsp_dict, count); if (ret) goto out; vol_count = count++; } } ret = dict_set_int32 (rsp_dict, "count", vol_count); out: if (dict) dict_unref (dict); gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } static int glusterd_op_ac_none (glusterd_op_sm_event_t *event, void *ctx) { int ret = 0; gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret); return ret; } static int glusterd_op_ac_send_lock (glusterd_op_sm_event_t *event, void *ctx) { int ret = 0; rpc_clnt_procedure_t *proc = NULL; glusterd_conf_t *priv = NULL; xlator_t *this = NULL; this = THIS; priv = this->private; proc = &priv->mgmt->proctable[GD_MGMT_CLUSTER_LOCK]; if (proc->fn) { ret = proc->fn (NULL, this, NULL); if (ret) goto out; } if (!opinfo.pending_count) ret = glusterd_op_sm_inject_all_acc (); out: gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret); return ret; } static int glusterd_op_ac_send_unlock (glusterd_op_sm_event_t *event, void *ctx) { int ret = 0; rpc_clnt_procedure_t *proc = NULL; glusterd_conf_t *priv = NULL; xlator_t *this = NULL; this = THIS; priv = this->private; /*ret = glusterd_unlock (priv->uuid); if (ret) goto out; */ proc = &priv->mgmt->proctable[GD_MGMT_CLUSTER_UNLOCK]; if (proc->fn) { ret = proc->fn (NULL, this, NULL); if (ret) goto out; } if (!opinfo.pending_count) ret = glusterd_op_sm_inject_all_acc (); out: gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret); return ret; } static int glusterd_op_ac_lock (glusterd_op_sm_event_t *event, void *ctx) { int ret = 0; glusterd_op_lock_ctx_t *lock_ctx = NULL; int32_t status = 0; GF_ASSERT (event); GF_ASSERT (ctx); lock_ctx = (glusterd_op_lock_ctx_t *)ctx; status = glusterd_lock (lock_ctx->uuid); gf_log ("", GF_LOG_DEBUG, "Lock Returned %d", status); ret = glusterd_op_lock_send_resp (lock_ctx->req, status); gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret); return ret; } static int glusterd_op_ac_unlock (glusterd_op_sm_event_t *event, void *ctx) { int ret = 0; glusterd_op_lock_ctx_t *lock_ctx = NULL; GF_ASSERT (event); GF_ASSERT (ctx); lock_ctx = (glusterd_op_lock_ctx_t *)ctx; ret = glusterd_unlock (lock_ctx->uuid); gf_log ("", GF_LOG_DEBUG, "Unlock Returned %d", ret); ret = glusterd_op_unlock_send_resp (lock_ctx->req, ret); gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret); return ret; } static int glusterd_op_ac_rcvd_lock_acc (glusterd_op_sm_event_t *event, void *ctx) { int ret = 0; GF_ASSERT (event); opinfo.pending_count--; if (opinfo.pending_count) goto out; ret = glusterd_op_sm_inject_event (GD_OP_EVENT_ALL_ACC, NULL); gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); out: return ret; } static int glusterd_op_ac_send_stage_op (glusterd_op_sm_event_t *event, void *ctx) { int ret = 0; rpc_clnt_procedure_t *proc = NULL; glusterd_conf_t *priv = NULL; xlator_t *this = NULL; this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); GF_ASSERT (priv->mgmt); proc = &priv->mgmt->proctable[GD_MGMT_STAGE_OP]; GF_ASSERT (proc); if (proc->fn) { ret = proc->fn (NULL, this, NULL); if (ret) goto out; } if (!opinfo.pending_count) ret = glusterd_op_sm_inject_all_acc (); out: gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret); return ret; } static int glusterd_op_ac_send_commit_op (glusterd_op_sm_event_t *event, void *ctx) { int ret = 0; rpc_clnt_procedure_t *proc = NULL; glusterd_conf_t *priv = NULL; xlator_t *this = NULL; this = THIS; GF_ASSERT (this); priv = this->private; GF_ASSERT (priv); GF_ASSERT (priv->mgmt); proc = &priv->mgmt->proctable[GD_MGMT_COMMIT_OP]; GF_ASSERT (proc); if (proc->fn) { ret = proc->fn (NULL, this, NULL); if (!ret) goto out; } if (!opinfo.pending_count) ret = glusterd_op_sm_inject_all_acc (); out: gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret); return ret; } static int glusterd_op_ac_rcvd_stage_op_acc (glusterd_op_sm_event_t *event, void *ctx) { int ret = 0; GF_ASSERT (event); opinfo.pending_count--; if (opinfo.pending_count) goto out; ret = glusterd_op_sm_inject_event (GD_OP_EVENT_STAGE_ACC, NULL); out: gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } static int glusterd_op_ac_rcvd_commit_op_acc (glusterd_op_sm_event_t *event, void *ctx) { glusterd_volinfo_t *volinfo = NULL; int32_t op = 0; int32_t src_port = 0; dict_t *dict = NULL; char *src_brick = NULL; char *dst_brick = NULL; char *volname = NULL; glusterd_brickinfo_t *src_brickinfo = NULL; glusterd_brickinfo_t *dst_brickinfo = NULL; int ret = 0; GF_ASSERT (event); opinfo.pending_count--; if (opinfo.pending_count) goto out; dict = glusterd_op_get_ctx (GD_OP_REPLACE_BRICK); if (dict) { gf_log ("", GF_LOG_DEBUG, "Replace brick operation detected"); ret = dict_get_int32 (dict, "operation", &op); if (ret) { gf_log ("", GF_LOG_DEBUG, "dict_get on operation failed"); goto out; } ret = dict_get_str (dict, "src-brick", &src_brick); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get src brick"); goto out; } gf_log ("", GF_LOG_DEBUG, "src brick=%s", src_brick); ret = dict_get_str (dict, "dst-brick", &dst_brick); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get dst brick"); goto out; } gf_log ("", GF_LOG_DEBUG, "dst brick=%s", dst_brick); ret = dict_get_str (dict, "volname", &volname); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get volume name"); goto out; } ret = glusterd_volinfo_find (volname, &volinfo); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to allocate memory"); goto out; } ret = glusterd_brickinfo_get (src_brick, volinfo, &src_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Unable to get src-brickinfo"); goto out; } ret = glusterd_brickinfo_from_brick (dst_brick, &dst_brickinfo); if (ret) { gf_log ("", GF_LOG_DEBUG, "Unable to get dst-brickinfo"); goto out; } ret = dict_get_int32 (dict, "src-brick-port", &src_port); if (ret) { gf_log ("", GF_LOG_ERROR, "Unable to get src-brick port"); goto out; } src_brickinfo->port = src_port; switch (op) { case GF_REPLACE_OP_START: ret = rb_do_operation_start (volinfo, src_brickinfo, dst_brickinfo); break; case GF_REPLACE_OP_COMMIT: ret = rb_do_operation_commit (volinfo, src_brickinfo, dst_brickinfo); break; case GF_REPLACE_OP_PAUSE: ret = rb_do_operation_pause (volinfo, src_brickinfo, dst_brickinfo); break; case GF_REPLACE_OP_ABORT: ret = rb_do_operation_abort (volinfo, src_brickinfo, dst_brickinfo); break; case GF_REPLACE_OP_STATUS: ret = rb_do_operation_status (volinfo, src_brickinfo, dst_brickinfo); break; default: ret = -1; goto out; } } if (ret) ret = glusterd_op_sm_inject_event (GD_OP_EVENT_RCVD_RJT, NULL); else ret = glusterd_op_sm_inject_event (GD_OP_EVENT_COMMIT_ACC, NULL); gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); out: return ret; } static int glusterd_op_ac_rcvd_unlock_acc (glusterd_op_sm_event_t *event, void *ctx) { int ret = 0; GF_ASSERT (event); opinfo.pending_count--; if (opinfo.pending_count) goto out; ret = glusterd_op_sm_inject_event (GD_OP_EVENT_ALL_ACC, NULL); gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); out: return ret; } int32_t glusterd_op_send_cli_response (int32_t op, int32_t op_ret, int32_t op_errno, rpcsvc_request_t *req, void *op_ctx, char *op_errstr) { int32_t ret = -1; gd_serialize_t sfunc = NULL; void *cli_rsp = NULL; dict_t *ctx = NULL; switch (op) { case GD_MGMT_CLI_CREATE_VOLUME: { gf1_cli_create_vol_rsp rsp = {0,}; rsp.op_ret = op_ret; rsp.op_errno = op_errno; rsp.volname = ""; if (op_errstr) rsp.op_errstr = op_errstr; else rsp.op_errstr = ""; cli_rsp = &rsp; sfunc = gf_xdr_serialize_cli_create_vol_rsp; break; } case GD_MGMT_CLI_START_VOLUME: { gf1_cli_start_vol_rsp rsp = {0,}; rsp.op_ret = op_ret; rsp.op_errno = op_errno; rsp.volname = ""; if (op_errstr) rsp.op_errstr = op_errstr; else rsp.op_errstr = ""; cli_rsp = &rsp; sfunc = gf_xdr_serialize_cli_start_vol_rsp; break; } case GD_MGMT_CLI_STOP_VOLUME: { gf1_cli_stop_vol_rsp rsp = {0,}; rsp.op_ret = op_ret; rsp.op_errno = op_errno; rsp.volname = ""; cli_rsp = &rsp; sfunc = gf_xdr_serialize_cli_stop_vol_rsp; break; } case GD_MGMT_CLI_DELETE_VOLUME: { gf1_cli_delete_vol_rsp rsp = {0,}; rsp.op_ret = op_ret; rsp.op_errno = op_errno; rsp.volname = ""; cli_rsp = &rsp; sfunc = gf_xdr_serialize_cli_delete_vol_rsp; break; } case GD_MGMT_CLI_DEFRAG_VOLUME: { gf1_cli_defrag_vol_rsp rsp = {0,}; rsp.op_ret = op_ret; rsp.op_errno = op_errno; //rsp.volname = ""; cli_rsp = &rsp; sfunc = gf_xdr_serialize_cli_defrag_vol_rsp; break; } case GD_MGMT_CLI_ADD_BRICK: { gf1_cli_add_brick_rsp rsp = {0,}; rsp.op_ret = op_ret; rsp.op_errno = op_errno; rsp.volname = ""; if (op_errstr) rsp.op_errstr = op_errstr; else rsp.op_errstr = ""; cli_rsp = &rsp; sfunc = gf_xdr_serialize_cli_add_brick_rsp; break; } case GD_MGMT_CLI_REMOVE_BRICK: { gf1_cli_remove_brick_rsp rsp = {0,}; ctx = op_ctx; if (ctx && dict_get_str (ctx, "errstr", &rsp.op_errstr)) rsp.op_errstr = ""; rsp.op_ret = op_ret; rsp.op_errno = op_errno; rsp.volname = ""; cli_rsp = &rsp; sfunc = gf_xdr_serialize_cli_remove_brick_rsp; break; } case GD_MGMT_CLI_REPLACE_BRICK: { gf1_cli_replace_brick_rsp rsp = {0,}; ctx = op_ctx; if (ctx && dict_get_str (ctx, "status-reply", &rsp.status)) rsp.status = ""; rsp.op_ret = op_ret; rsp.op_errno = op_errno; rsp.volname = ""; cli_rsp = &rsp; sfunc = gf_xdr_serialize_cli_replace_brick_rsp; break; } case GD_MGMT_CLI_SET_VOLUME: { gf1_cli_set_vol_rsp rsp = {0,}; rsp.op_ret = op_ret; rsp.op_errno = op_errno; rsp.volname = ""; cli_rsp = &rsp; sfunc = gf_xdr_serialize_cli_set_vol_rsp; break; } case GD_MGMT_CLI_LOG_FILENAME: { gf1_cli_log_filename_rsp rsp = {0,}; rsp.op_ret = op_ret; rsp.op_errno = op_errno; rsp.errstr = ""; cli_rsp = &rsp; sfunc = gf_xdr_serialize_cli_log_filename_rsp; break; } case GD_MGMT_CLI_LOG_ROTATE: { gf1_cli_log_rotate_rsp rsp = {0,}; rsp.op_ret = op_ret; rsp.op_errno = op_errno; rsp.errstr = ""; cli_rsp = &rsp; sfunc = gf_xdr_serialize_cli_log_rotate_rsp; break; } case GD_MGMT_CLI_SYNC_VOLUME: { gf1_cli_sync_volume_rsp rsp = {0,}; rsp.op_ret = op_ret; rsp.op_errno = op_errno; if (op_errstr) rsp.op_errstr = op_errstr; else rsp.op_errstr = ""; cli_rsp = &rsp; sfunc = gf_xdr_from_cli_sync_volume_rsp; break; } } ret = glusterd_submit_reply (req, cli_rsp, NULL, 0, NULL, sfunc); if (ret) goto out; out: pthread_mutex_unlock (&opinfo.lock); gf_log ("", GF_LOG_NORMAL, "Returning %d", ret); return ret; } int32_t glusterd_op_clear_errstr() { opinfo.op_errstr = NULL; return 0; } int32_t glusterd_op_txn_complete () { int32_t ret = -1; glusterd_conf_t *priv = NULL; int32_t op = -1; int32_t op_ret = 0; int32_t op_errno = 0; int32_t cli_op = 0; rpcsvc_request_t *req = NULL; void *ctx = NULL; gf_boolean_t ctx_free = _gf_false; char *op_errstr = NULL; priv = THIS->private; GF_ASSERT (priv); ret = glusterd_unlock (priv->uuid); if (ret) { gf_log ("glusterd", GF_LOG_CRITICAL, "Unable to clear local lock, ret: %d", ret); goto out; } gf_log ("glusterd", GF_LOG_NORMAL, "Cleared local lock"); op_ret = opinfo.op_ret; op_errno = opinfo.op_errno; cli_op = opinfo.cli_op; req = opinfo.req; if (opinfo.op_errstr) op_errstr = opinfo.op_errstr; opinfo.op_ret = 0; opinfo.op_errno = 0; op = glusterd_op_get_op (); if (op != -1) { glusterd_op_clear_pending_op (op); glusterd_op_clear_commit_op (op); glusterd_op_clear_op (op); ctx = glusterd_op_get_ctx (op); ctx_free = glusterd_op_get_ctx_free (op); glusterd_op_set_ctx (op, NULL); glusterd_op_clear_ctx_free (op); glusterd_op_clear_errstr (); } out: pthread_mutex_unlock (&opinfo.lock); ret = glusterd_op_send_cli_response (cli_op, op_ret, op_errno, req, ctx, op_errstr); if (ret) { gf_log ("", GF_LOG_ERROR, "Responding to cli failed, ret: %d", ret); //Ignore this error, else state machine blocks ret = 0; } if (ctx_free && ctx && (op != -1)) glusterd_op_free_ctx (op, ctx, ctx_free); if (op_errstr && (strcmp (op_errstr, ""))) GF_FREE (op_errstr); gf_log ("glusterd", GF_LOG_NORMAL, "Returning %d", ret); return ret; } static int glusterd_op_ac_unlocked_all (glusterd_op_sm_event_t *event, void *ctx) { int ret = 0; GF_ASSERT (event); ret = glusterd_op_txn_complete (); gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } static int glusterd_op_ac_commit_error (glusterd_op_sm_event_t *event, void *ctx) { int ret = 0; //Log here with who failed the commit // ret = glusterd_op_sm_inject_event (GD_OP_EVENT_START_UNLOCK, NULL); return ret; } static int glusterd_op_ac_stage_op (glusterd_op_sm_event_t *event, void *ctx) { int ret = -1; gd1_mgmt_stage_op_req *req = NULL; glusterd_op_stage_ctx_t *stage_ctx = NULL; int32_t status = 0; char *op_errstr = NULL; GF_ASSERT (ctx); stage_ctx = ctx; req = &stage_ctx->stage_req; status = glusterd_op_stage_validate (req, &op_errstr); if (status) { gf_log ("", GF_LOG_ERROR, "Validate failed: %d", status); } ret = glusterd_op_stage_send_resp (stage_ctx->req, req->op, status, op_errstr); if (op_errstr && (strcmp (op_errstr, ""))) GF_FREE (op_errstr); gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret); return ret; } static int glusterd_op_ac_commit_op (glusterd_op_sm_event_t *event, void *ctx) { int ret = 0; gd1_mgmt_stage_op_req *req = NULL; glusterd_op_commit_ctx_t *commit_ctx = NULL; int32_t status = 0; char *op_errstr = NULL; dict_t *rsp_dict = NULL; GF_ASSERT (ctx); commit_ctx = ctx; req = &commit_ctx->stage_req; rsp_dict = dict_new (); if (!rsp_dict) { gf_log ("", GF_LOG_DEBUG, "Out of memory"); ret = -1; goto out; } status = glusterd_op_commit_perform (req, &op_errstr, rsp_dict); if (status) { gf_log ("", GF_LOG_ERROR, "Commit failed: %d", status); } ret = glusterd_op_commit_send_resp (commit_ctx->req, req->op, status, op_errstr, rsp_dict); out: if (rsp_dict) dict_unref (rsp_dict); if (op_errstr && (strcmp (op_errstr, ""))) GF_FREE (op_errstr); gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret); return ret; } static int glusterd_op_sm_transition_state (glusterd_op_info_t *opinfo, glusterd_op_sm_t *state, glusterd_op_sm_event_type_t event_type) { GF_ASSERT (state); GF_ASSERT (opinfo); gf_log ("", GF_LOG_NORMAL, "Transitioning from %d to %d", opinfo->state.state, state[event_type].next_state); opinfo->state.state = state[event_type].next_state; return 0; } int32_t glusterd_op_stage_validate (gd1_mgmt_stage_op_req *req, char **op_errstr) { int ret = -1; GF_ASSERT (req); switch (req->op) { case GD_OP_CREATE_VOLUME: ret = glusterd_op_stage_create_volume (req, op_errstr); break; case GD_OP_START_VOLUME: ret = glusterd_op_stage_start_volume (req, op_errstr); break; case GD_OP_STOP_VOLUME: ret = glusterd_op_stage_stop_volume (req); break; case GD_OP_DELETE_VOLUME: ret = glusterd_op_stage_delete_volume (req); break; case GD_OP_ADD_BRICK: ret = glusterd_op_stage_add_brick (req, op_errstr); break; case GD_OP_REPLACE_BRICK: ret = glusterd_op_stage_replace_brick (req); break; case GD_OP_SET_VOLUME: ret = glusterd_op_stage_set_volume (req); break; case GD_OP_REMOVE_BRICK: ret = glusterd_op_stage_remove_brick (req); break; case GD_OP_LOG_FILENAME: ret = glusterd_op_stage_log_filename (req); break; case GD_OP_LOG_ROTATE: ret = glusterd_op_stage_log_rotate (req); break; case GD_OP_SYNC_VOLUME: ret = glusterd_op_stage_sync_volume (req, op_errstr); break; default: gf_log ("", GF_LOG_ERROR, "Unknown op %d", req->op); } gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } int32_t glusterd_op_commit_perform (gd1_mgmt_stage_op_req *req, char **op_errstr, dict_t *rsp_dict) { int ret = -1; GF_ASSERT (req); switch (req->op) { case GD_OP_CREATE_VOLUME: ret = glusterd_op_create_volume (req, op_errstr); break; case GD_OP_START_VOLUME: ret = glusterd_op_start_volume (req, op_errstr); break; case GD_OP_STOP_VOLUME: ret = glusterd_op_stop_volume (req); break; case GD_OP_DELETE_VOLUME: ret = glusterd_op_delete_volume (req); break; case GD_OP_ADD_BRICK: ret = glusterd_op_add_brick (req, op_errstr); break; case GD_OP_REPLACE_BRICK: ret = glusterd_op_replace_brick (req); break; case GD_OP_SET_VOLUME: ret = glusterd_op_set_volume (req); break; case GD_OP_REMOVE_BRICK: ret = glusterd_op_remove_brick (req); break; case GD_OP_LOG_FILENAME: ret = glusterd_op_log_filename (req); break; case GD_OP_LOG_ROTATE: ret = glusterd_op_log_rotate (req); break; case GD_OP_SYNC_VOLUME: ret = glusterd_op_sync_volume (req, op_errstr, rsp_dict); break; default: gf_log ("", GF_LOG_ERROR, "Unknown op %d", req->op); } gf_log ("", GF_LOG_DEBUG, "Returning %d", ret); return ret; } glusterd_op_sm_t glusterd_op_state_default [] = { {GD_OP_STATE_DEFAULT, glusterd_op_ac_none}, //EVENT_NONE {GD_OP_STATE_LOCK_SENT, glusterd_op_ac_send_lock},//EVENT_START_LOCK {GD_OP_STATE_LOCKED, glusterd_op_ac_lock}, //EVENT_LOCK {GD_OP_STATE_DEFAULT, glusterd_op_ac_none}, //EVENT_RCVD_ACC {GD_OP_STATE_DEFAULT, glusterd_op_ac_none}, //EVENT_ALL_ACC {GD_OP_STATE_DEFAULT, glusterd_op_ac_none}, //EVENT_STAGE_ACC {GD_OP_STATE_DEFAULT, glusterd_op_ac_none}, //EVENT_COMMIT_ACC {GD_OP_STATE_DEFAULT, glusterd_op_ac_none}, //EVENT_RCVD_RJT {GD_OP_STATE_DEFAULT, glusterd_op_ac_none}, //EVENT_STAGE_OP {GD_OP_STATE_DEFAULT, glusterd_op_ac_none}, //EVENT_COMMIT_OP {GD_OP_STATE_DEFAULT, glusterd_op_ac_unlock}, //EVENT_UNLOCK {GD_OP_STATE_DEFAULT, glusterd_op_ac_none}, //EVENT_START_UNLOCK {GD_OP_STATE_DEFAULT, glusterd_op_ac_none}, //EVENT_MAX }; glusterd_op_sm_t glusterd_op_state_lock_sent [] = { {GD_OP_STATE_LOCK_SENT, glusterd_op_ac_none}, //EVENT_NONE {GD_OP_STATE_LOCK_SENT, glusterd_op_ac_none},//EVENT_START_LOCK {GD_OP_STATE_LOCK_SENT, glusterd_op_ac_none}, //EVENT_LOCK {GD_OP_STATE_LOCK_SENT, glusterd_op_ac_rcvd_lock_acc}, //EVENT_RCVD_ACC {GD_OP_STATE_STAGE_OP_SENT, glusterd_op_ac_send_stage_op}, //EVENT_ALL_ACC {GD_OP_STATE_LOCK_SENT, glusterd_op_ac_none}, //EVENT_STAGE_ACC {GD_OP_STATE_LOCK_SENT, glusterd_op_ac_none}, //EVENT_COMMIT_ACC {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_send_unlock}, //EVENT_RCVD_RJT {GD_OP_STATE_LOCK_SENT, glusterd_op_ac_none}, //EVENT_STAGE_OP {GD_OP_STATE_LOCK_SENT, glusterd_op_ac_none}, //EVENT_COMMIT_OP {GD_OP_STATE_DEFAULT, glusterd_op_ac_unlock}, //EVENT_UNLOCK {GD_OP_STATE_LOCK_SENT, glusterd_op_ac_none}, //EVENT_START_UNLOCK {GD_OP_STATE_LOCK_SENT, glusterd_op_ac_none}, //EVENT_MAX }; glusterd_op_sm_t glusterd_op_state_locked [] = { {GD_OP_STATE_LOCKED, glusterd_op_ac_none}, //EVENT_NONE {GD_OP_STATE_LOCKED, glusterd_op_ac_none},//EVENT_START_LOCK {GD_OP_STATE_LOCKED, glusterd_op_ac_none}, //EVENT_LOCK {GD_OP_STATE_LOCKED, glusterd_op_ac_none}, //EVENT_RCVD_ACC {GD_OP_STATE_LOCKED, glusterd_op_ac_none}, //EVENT_ALL_ACC {GD_OP_STATE_LOCKED, glusterd_op_ac_none}, //EVENT_STAGE_ACC {GD_OP_STATE_LOCKED, glusterd_op_ac_none}, //EVENT_COMMIT_ACC {GD_OP_STATE_LOCKED, glusterd_op_ac_none}, //EVENT_RCVD_RJT {GD_OP_STATE_STAGED, glusterd_op_ac_stage_op}, //EVENT_STAGE_OP {GD_OP_STATE_LOCKED, glusterd_op_ac_none}, //EVENT_COMMIT_OP {GD_OP_STATE_DEFAULT, glusterd_op_ac_unlock}, //EVENT_UNLOCK {GD_OP_STATE_LOCKED, glusterd_op_ac_none}, //EVENT_START_UNLOCK {GD_OP_STATE_LOCKED, glusterd_op_ac_none}, //EVENT_MAX }; glusterd_op_sm_t glusterd_op_state_stage_op_sent [] = { {GD_OP_STATE_STAGE_OP_SENT, glusterd_op_ac_none}, //EVENT_NONE {GD_OP_STATE_STAGE_OP_SENT, glusterd_op_ac_none},//EVENT_START_LOCK {GD_OP_STATE_STAGE_OP_SENT, glusterd_op_ac_none}, //EVENT_LOCK {GD_OP_STATE_STAGE_OP_SENT, glusterd_op_ac_rcvd_stage_op_acc}, //EVENT_RCVD_ACC {GD_OP_STATE_STAGE_OP_SENT, glusterd_op_ac_send_stage_op}, //EVENT_ALL_ACC {GD_OP_STATE_COMMIT_OP_SENT, glusterd_op_ac_send_commit_op}, //EVENT_STAGE_ACC {GD_OP_STATE_STAGE_OP_SENT, glusterd_op_ac_none}, //EVENT_COMMIT_ACC {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_send_unlock}, //EVENT_RCVD_RJT {GD_OP_STATE_STAGE_OP_SENT, glusterd_op_ac_none}, //EVENT_STAGE_OP {GD_OP_STATE_STAGE_OP_SENT, glusterd_op_ac_none}, //EVENT_COMMIT_OP {GD_OP_STATE_STAGE_OP_SENT, glusterd_op_ac_unlock}, //EVENT_UNLOCK {GD_OP_STATE_STAGE_OP_SENT, glusterd_op_ac_none}, //EVENT_START_UNLOCK {GD_OP_STATE_STAGE_OP_SENT, glusterd_op_ac_none}, //EVENT_MAX }; glusterd_op_sm_t glusterd_op_state_staged [] = { {GD_OP_STATE_STAGED, glusterd_op_ac_none}, //EVENT_NONE {GD_OP_STATE_STAGED, glusterd_op_ac_none},//EVENT_START_LOCK {GD_OP_STATE_STAGED, glusterd_op_ac_none}, //EVENT_LOCK {GD_OP_STATE_STAGED, glusterd_op_ac_none}, //EVENT_RCVD_ACC {GD_OP_STATE_STAGED, glusterd_op_ac_none}, //EVENT_ALL_ACC {GD_OP_STATE_STAGED, glusterd_op_ac_none}, //EVENT_STAGE_ACC {GD_OP_STATE_STAGED, glusterd_op_ac_none}, //EVENT_COMMIT_ACC {GD_OP_STATE_STAGED, glusterd_op_ac_none}, //EVENT_RCVD_RJT {GD_OP_STATE_STAGED, glusterd_op_ac_none}, //EVENT_STAGE_OP {GD_OP_STATE_COMMITED, glusterd_op_ac_commit_op}, //EVENT_COMMIT_OP {GD_OP_STATE_DEFAULT, glusterd_op_ac_unlock}, //EVENT_UNLOCK {GD_OP_STATE_STAGED, glusterd_op_ac_none}, //EVENT_START_UNLOCK {GD_OP_STATE_STAGED, glusterd_op_ac_none}, //EVENT_MAX }; glusterd_op_sm_t glusterd_op_state_commit_op_sent [] = { {GD_OP_STATE_COMMIT_OP_SENT, glusterd_op_ac_none}, //EVENT_NONE {GD_OP_STATE_COMMIT_OP_SENT, glusterd_op_ac_none},//EVENT_START_LOCK {GD_OP_STATE_COMMIT_OP_SENT, glusterd_op_ac_none}, //EVENT_LOCK {GD_OP_STATE_COMMIT_OP_SENT, glusterd_op_ac_rcvd_commit_op_acc}, //EVENT_RCVD_ACC {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_send_unlock}, //EVENT_ALL_ACC {GD_OP_STATE_COMMIT_OP_SENT, glusterd_op_ac_none}, //EVENT_STAGE_ACC {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_send_unlock}, //EVENT_COMMIT_ACC {GD_OP_STATE_COMMIT_OP_SENT, glusterd_op_ac_commit_error}, //EVENT_RCVD_RJT {GD_OP_STATE_COMMIT_OP_SENT, glusterd_op_ac_none}, //EVENT_STAGE_OP {GD_OP_STATE_COMMIT_OP_SENT, glusterd_op_ac_none}, //EVENT_COMMIT_OP {GD_OP_STATE_COMMIT_OP_SENT, glusterd_op_ac_unlock}, //EVENT_UNLOCK {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_send_unlock}, //EVENT_START_UNLOCK {GD_OP_STATE_COMMIT_OP_SENT, glusterd_op_ac_none}, //EVENT_MAX }; glusterd_op_sm_t glusterd_op_state_commited [] = { {GD_OP_STATE_COMMITED, glusterd_op_ac_none}, //EVENT_NONE {GD_OP_STATE_COMMITED, glusterd_op_ac_none},//EVENT_START_LOCK {GD_OP_STATE_COMMITED, glusterd_op_ac_none}, //EVENT_LOCK {GD_OP_STATE_COMMITED, glusterd_op_ac_none}, //EVENT_RCVD_ACC {GD_OP_STATE_COMMITED, glusterd_op_ac_none}, //EVENT_ALL_ACC {GD_OP_STATE_COMMITED, glusterd_op_ac_none}, //EVENT_STAGE_ACC {GD_OP_STATE_COMMITED, glusterd_op_ac_none}, //EVENT_COMMIT_ACC {GD_OP_STATE_COMMITED, glusterd_op_ac_none}, //EVENT_RCVD_RJT {GD_OP_STATE_COMMITED, glusterd_op_ac_none}, //EVENT_STAGE_OP {GD_OP_STATE_COMMITED, glusterd_op_ac_none}, //EVENT_COMMIT_OP {GD_OP_STATE_DEFAULT, glusterd_op_ac_unlock}, //EVENT_UNLOCK {GD_OP_STATE_COMMITED, glusterd_op_ac_none}, //EVENT_START_UNLOCK {GD_OP_STATE_COMMITED, glusterd_op_ac_none}, //EVENT_MAX }; glusterd_op_sm_t glusterd_op_state_unlock_sent [] = { {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_none}, //EVENT_NONE {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_none},//EVENT_START_LOCK {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_none}, //EVENT_LOCK {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_rcvd_unlock_acc}, //EVENT_RCVD_ACC {GD_OP_STATE_DEFAULT, glusterd_op_ac_unlocked_all}, //EVENT_ALL_ACC {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_none}, //EVENT_STAGE_ACC {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_none}, //EVENT_COMMIT_ACC {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_none}, //EVENT_RCVD_RJT {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_none}, //EVENT_STAGE_OP {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_none}, //EVENT_COMMIT_OP {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_unlock}, //EVENT_UNLOCK {GD_OP_STATE_COMMITED, glusterd_op_ac_none}, //EVENT_START_UNLOCK {GD_OP_STATE_UNLOCK_SENT, glusterd_op_ac_none}, //EVENT_MAX }; glusterd_op_sm_t *glusterd_op_state_table [] = { glusterd_op_state_default, glusterd_op_state_lock_sent, glusterd_op_state_locked, glusterd_op_state_stage_op_sent, glusterd_op_state_staged, glusterd_op_state_commit_op_sent, glusterd_op_state_commited, glusterd_op_state_unlock_sent }; int glusterd_op_sm_new_event (glusterd_op_sm_event_type_t event_type, glusterd_op_sm_event_t **new_event) { glusterd_op_sm_event_t *event = NULL; GF_ASSERT (new_event); GF_ASSERT (GD_OP_EVENT_NONE <= event_type && GD_OP_EVENT_MAX > event_type); event = GF_CALLOC (1, sizeof (*event), gf_gld_mt_op_sm_event_t); if (!event) return -1; *new_event = event; event->event = event_type; INIT_LIST_HEAD (&event->list); return 0; } int glusterd_op_sm_inject_event (glusterd_op_sm_event_type_t event_type, void *ctx) { int32_t ret = -1; glusterd_op_sm_event_t *event = NULL; GF_ASSERT (event_type < GD_OP_EVENT_MAX && event_type >= GD_OP_EVENT_NONE); ret = glusterd_op_sm_new_event (event_type, &event); if (ret) goto out; event->ctx = ctx; gf_log ("glusterd", GF_LOG_NORMAL, "Enqueuing event: %d", event->event); list_add_tail (&event->list, &gd_op_sm_queue); out: return ret; } void glusterd_destroy_op_event_ctx (glusterd_op_sm_event_t *event) { if (!event) return; switch (event->event) { case GD_OP_EVENT_LOCK: case GD_OP_EVENT_UNLOCK: glusterd_destroy_lock_ctx (event->ctx); break; case GD_OP_EVENT_STAGE_OP: glusterd_destroy_stage_ctx (event->ctx); break; case GD_OP_EVENT_COMMIT_OP: glusterd_destroy_commit_ctx (event->ctx); break; default: break; } } int glusterd_op_sm () { glusterd_op_sm_event_t *event = NULL; glusterd_op_sm_event_t *tmp = NULL; int ret = -1; glusterd_op_sm_ac_fn handler = NULL; glusterd_op_sm_t *state = NULL; glusterd_op_sm_event_type_t event_type = GD_OP_EVENT_NONE; while (!list_empty (&gd_op_sm_queue)) { list_for_each_entry_safe (event, tmp, &gd_op_sm_queue, list) { list_del_init (&event->list); event_type = event->event; state = glusterd_op_state_table[opinfo.state.state]; GF_ASSERT (state); handler = state[event_type].handler; GF_ASSERT (handler); ret = handler (event, event->ctx); if (ret) { gf_log ("glusterd", GF_LOG_ERROR, "handler returned: %d", ret); glusterd_destroy_op_event_ctx (event); GF_FREE (event); continue; } ret = glusterd_op_sm_transition_state (&opinfo, state, event_type); if (ret) { gf_log ("glusterd", GF_LOG_ERROR, "Unable to transition" "state from %d to %d", opinfo.state.state, state[event_type].next_state); return ret; } glusterd_destroy_op_event_ctx (event); GF_FREE (event); } } ret = 0; return ret; } int32_t glusterd_op_set_op (glusterd_op_t op) { GF_ASSERT (op < GD_OP_MAX); GF_ASSERT (op > GD_OP_NONE); opinfo.op[op] = 1; opinfo.pending_op[op] = 1; opinfo.commit_op[op] = 1; return 0; } int32_t glusterd_op_get_op () { int i = 0; int32_t ret = 0; for ( i = 0; i < GD_OP_MAX; i++) { if (opinfo.op[i]) break; } if ( i == GD_OP_MAX) ret = -1; else ret = i; return ret; } int32_t glusterd_op_set_cli_op (gf_mgmt_procnum op) { int32_t ret; ret = pthread_mutex_trylock (&opinfo.lock); if (ret) goto out; opinfo.cli_op = op; out: gf_log ("", GF_LOG_NORMAL, "Returning %d", ret); return ret; } int32_t glusterd_op_set_req (rpcsvc_request_t *req) { GF_ASSERT (req); opinfo.req = req; return 0; } int32_t glusterd_op_clear_pending_op (glusterd_op_t op) { GF_ASSERT (op < GD_OP_MAX); GF_ASSERT (op > GD_OP_NONE); opinfo.pending_op[op] = 0; return 0; } int32_t glusterd_op_clear_commit_op (glusterd_op_t op) { GF_ASSERT (op < GD_OP_MAX); GF_ASSERT (op > GD_OP_NONE); opinfo.commit_op[op] = 0; return 0; } int32_t glusterd_op_clear_op (glusterd_op_t op) { GF_ASSERT (op < GD_OP_MAX); GF_ASSERT (op > GD_OP_NONE); opinfo.op[op] = 0; return 0; } int32_t glusterd_op_set_ctx (glusterd_op_t op, void *ctx) { GF_ASSERT (op < GD_OP_MAX); GF_ASSERT (op > GD_OP_NONE); opinfo.op_ctx[op] = ctx; return 0; } int32_t glusterd_op_free_ctx (glusterd_op_t op, void *ctx, gf_boolean_t ctx_free) { GF_ASSERT (op < GD_OP_MAX); GF_ASSERT (op > GD_OP_NONE); if (ctx && ctx_free) { switch (op) { case GD_OP_CREATE_VOLUME: case GD_OP_STOP_VOLUME: case GD_OP_ADD_BRICK: case GD_OP_REMOVE_BRICK: case GD_OP_REPLACE_BRICK: case GD_OP_LOG_FILENAME: case GD_OP_LOG_ROTATE: case GD_OP_SYNC_VOLUME: dict_unref (ctx); break; case GD_OP_DELETE_VOLUME: case GD_OP_START_VOLUME: GF_FREE (ctx); break; default: break; } } return 0; } void * glusterd_op_get_ctx (glusterd_op_t op) { GF_ASSERT (op < GD_OP_MAX); GF_ASSERT (op > GD_OP_NONE); return opinfo.op_ctx[op]; } int32_t glusterd_op_set_ctx_free (glusterd_op_t op, gf_boolean_t ctx_free) { GF_ASSERT (op < GD_OP_MAX); GF_ASSERT (op > GD_OP_NONE); opinfo.ctx_free[op] = ctx_free; return 0; } int32_t glusterd_op_clear_ctx_free (glusterd_op_t op) { GF_ASSERT (op < GD_OP_MAX); GF_ASSERT (op > GD_OP_NONE); opinfo.ctx_free[op] = _gf_false; return 0; } gf_boolean_t glusterd_op_get_ctx_free (glusterd_op_t op) { GF_ASSERT (op < GD_OP_MAX); GF_ASSERT (op > GD_OP_NONE); return opinfo.ctx_free[op]; } int glusterd_op_sm_init () { INIT_LIST_HEAD (&gd_op_sm_queue); return 0; } int32_t glusterd_opinfo_unlock(){ return (pthread_mutex_unlock(&opinfo.lock)); }