From 0db65a084608a9deb0d0917f084e0d55e23e54a7 Mon Sep 17 00:00:00 2001 From: Venky Shankar Date: Fri, 18 Jul 2014 15:36:42 +0530 Subject: features/changelog: Capture "correct" internal FOPs This patch fixes changelog capturing internal FOPs in a cascaded setup, where the intermediate master would record internal FOPs (generated by DHT on link()/rename()). This is due to I/O happening on the intermediate slave on geo-replication's auxillary mount with client-pid -1. Currently, the internal FOP capturing logic depends on client pid being non-negative and the presence of a special key in dictionary. Due to this, internal FOPs on an inter-mediate master would be recorded in the changelog. Checking client-pid being non-negative was introduced to capture AFR self-heal traffic in changelog, thereby breaking cascading setups. By coincidence, AFR self-heal daemon uses -1 as frame->root->pid thereby making is hard to differentiate b/w geo-rep's auxillary mount and self-heal daemon. BUG: 1138952 Change-Id: Ia08a2cfa3b02bb785f343794f5b2695d44398c4c Original-Author: Venky Shankar Signed-off-by: Kotresh H R Reviewed-on: http://review.gluster.org/8347 Reviewed-by: Venky Shankar Tested-by: Gluster Build System Reviewed-by: Vijay Bellur Reviewed-on: http://review.gluster.org/8638 --- xlators/cluster/afr/src/afr-common.c | 4 ++-- xlators/cluster/afr/src/afr-self-heal-common.c | 8 ++++---- xlators/features/changelog/src/changelog-helpers.h | 13 ++++++++----- 3 files changed, 14 insertions(+), 11 deletions(-) (limited to 'xlators') diff --git a/xlators/cluster/afr/src/afr-common.c b/xlators/cluster/afr/src/afr-common.c index 13dd81e25fe..8fc202512f1 100644 --- a/xlators/cluster/afr/src/afr-common.c +++ b/xlators/cluster/afr/src/afr-common.c @@ -514,7 +514,7 @@ afr_inode_refresh_done (call_frame_t *frame, xlator_t *this) if (ret && afr_selfheal_enabled (this)) { heal = copy_frame (frame); if (heal) - heal->root->pid = -1; + heal->root->pid = GF_CLIENT_PID_AFR_SELF_HEALD; ret = synctask_new (this->ctx->env, afr_refresh_selfheal_wrap, afr_refresh_selfheal_done, heal, frame); if (ret) @@ -1497,7 +1497,7 @@ afr_lookup_entry_heal (call_frame_t *frame, xlator_t *this) if (need_heal) { heal = copy_frame (frame); if (heal) - heal->root->pid = -1; + heal->root->pid = GF_CLIENT_PID_AFR_SELF_HEALD; ret = synctask_new (this->ctx->env, afr_lookup_selfheal_wrap, afr_refresh_selfheal_done, heal, frame); if (ret) diff --git a/xlators/cluster/afr/src/afr-self-heal-common.c b/xlators/cluster/afr/src/afr-self-heal-common.c index 56691e27752..1d0831f0752 100644 --- a/xlators/cluster/afr/src/afr-self-heal-common.c +++ b/xlators/cluster/afr/src/afr-self-heal-common.c @@ -947,10 +947,10 @@ afr_inode_find (xlator_t *this, uuid_t gfid) call_frame_t * afr_frame_create (xlator_t *this) { - call_frame_t *frame = NULL; - afr_local_t *local = NULL; - int op_errno = 0; - pid_t pid = -1; + call_frame_t *frame = NULL; + afr_local_t *local = NULL; + int op_errno = 0; + pid_t pid = GF_CLIENT_PID_AFR_SELF_HEALD; frame = create_frame (this, this->ctx->pool); if (!frame) diff --git a/xlators/features/changelog/src/changelog-helpers.h b/xlators/features/changelog/src/changelog-helpers.h index d4af1ff3445..9bd4a3ff37c 100644 --- a/xlators/features/changelog/src/changelog-helpers.h +++ b/xlators/features/changelog/src/changelog-helpers.h @@ -539,11 +539,14 @@ int __chlog_barrier_enable (xlator_t *this, changelog_priv_t *priv); goto label; \ } while (0) -/* ignore internal fops */ -#define CHANGELOG_IF_INTERNAL_FOP_THEN_GOTO(frame, dict, label) do { \ - if ((frame->root->pid > 0) && \ - dict && dict_get (dict, GLUSTERFS_INTERNAL_FOP_KEY)) \ - goto label; \ +/** + * ignore internal fops for all clients except AFR self-heal daemon + */ +#define CHANGELOG_IF_INTERNAL_FOP_THEN_GOTO(frame, dict, label) do { \ + if ((frame->root->pid != GF_CLIENT_PID_AFR_SELF_HEALD) \ + && dict \ + && dict_get (dict, GLUSTERFS_INTERNAL_FOP_KEY)) \ + goto label; \ } while (0) #define CHANGELOG_COND_GOTO(priv, cond, label) do { \ -- cgit