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-rw-r--r--xlators/mgmt/glusterd/src/glusterd-handler.c100
-rw-r--r--xlators/mgmt/glusterd/src/glusterd.c40
-rw-r--r--xlators/mgmt/glusterd/src/glusterd.h2
3 files changed, 131 insertions, 11 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-handler.c b/xlators/mgmt/glusterd/src/glusterd-handler.c
index 592fbbdb260..cec94f89f6c 100644
--- a/xlators/mgmt/glusterd/src/glusterd-handler.c
+++ b/xlators/mgmt/glusterd/src/glusterd-handler.c
@@ -921,6 +921,105 @@ out:
}
int
+glusterd_handle_cli_uuid_reset (rpcsvc_request_t *req)
+{
+ int ret = -1;
+ dict_t *dict = NULL;
+ xlator_t *this = NULL;
+ glusterd_conf_t *priv = NULL;
+ uuid_t uuid = {0};
+ gf_cli_rsp rsp = {0,};
+ gf_cli_req cli_req = {{0,}};
+ char msg_str[2048] = {0,};
+
+ GF_ASSERT (req);
+
+ this = THIS;
+ priv = this->private;
+ GF_ASSERT (priv);
+
+ if (!xdr_to_generic (req->msg[0], &cli_req, (xdrproc_t)xdr_gf_cli_req)) {
+ //failed to decode msg;
+ req->rpc_err = GARBAGE_ARGS;
+ goto out;
+ }
+
+ gf_log ("glusterd", GF_LOG_DEBUG, "Received uuid reset req");
+
+ if (cli_req.dict.dict_len) {
+ /* Unserialize the dictionary */
+ dict = dict_new ();
+
+ ret = dict_unserialize (cli_req.dict.dict_val,
+ cli_req.dict.dict_len,
+ &dict);
+ if (ret < 0) {
+ gf_log ("glusterd", GF_LOG_ERROR,
+ "failed to "
+ "unserialize req-buffer to dictionary");
+ snprintf (msg_str, sizeof (msg_str), "Unable to decode "
+ "the buffer");
+ goto out;
+ } else {
+ dict->extra_stdfree = cli_req.dict.dict_val;
+ }
+ }
+
+ /* In the above section if dict_unserialize is successful, ret is set
+ * to zero.
+ */
+ ret = -1;
+ // Do not allow peer reset if there are any volumes in the cluster
+ if (!list_empty (&priv->volumes)) {
+ snprintf (msg_str, sizeof (msg_str), "volumes are already "
+ "present in the cluster. Resetting uuid is not "
+ "allowed");
+ gf_log (this->name, GF_LOG_WARNING, msg_str);
+ goto out;
+ }
+
+ // Do not allow peer reset if trusted storage pool is already formed
+ if (!list_empty (&priv->peers)) {
+ snprintf (msg_str, sizeof (msg_str),"trusted storage pool "
+ "has been already formed. Please detach this peer "
+ "from the pool and reset its uuid.");
+ gf_log (this->name, GF_LOG_WARNING, msg_str);
+ goto out;
+ }
+
+ uuid_copy (uuid, priv->uuid);
+ ret = glusterd_uuid_generate_save ();
+
+ if (!uuid_compare (uuid, MY_UUID)) {
+ snprintf (msg_str, sizeof (msg_str), "old uuid and the new uuid"
+ " are same. Try gluster peer reset again");
+ gf_log (this->name, GF_LOG_ERROR, msg_str);
+ ret = -1;
+ goto out;
+ }
+
+out:
+ if (ret) {
+ rsp.op_ret = -1;
+ if (msg_str[0] == '\0')
+ snprintf (msg_str, sizeof (msg_str), "Operation "
+ "failed");
+ rsp.op_errstr = msg_str;
+ ret = 0;
+ } else {
+ rsp.op_errstr = "";
+ }
+
+ glusterd_to_cli (req, &rsp, NULL, 0, NULL,
+ (xdrproc_t)xdr_gf_cli_rsp, dict);
+
+ if (dict)
+ dict_unref (dict);
+
+ return ret;
+}
+
+int
glusterd_handle_cli_list_volume (rpcsvc_request_t *req)
{
int ret = -1;
@@ -3035,6 +3134,7 @@ rpcsvc_actor_t gd_svc_cli_actors[] = {
[GLUSTER_CLI_DEFRAG_VOLUME] = { "CLI_DEFRAG_VOLUME", GLUSTER_CLI_DEFRAG_VOLUME, glusterd_handle_defrag_volume, NULL, 0},
[GLUSTER_CLI_DEPROBE] = { "FRIEND_REMOVE", GLUSTER_CLI_DEPROBE, glusterd_handle_cli_deprobe, NULL, 0},
[GLUSTER_CLI_LIST_FRIENDS] = { "LIST_FRIENDS", GLUSTER_CLI_LIST_FRIENDS, glusterd_handle_cli_list_friends, NULL, 0},
+ [GLUSTER_CLI_UUID_RESET] = { "UUID_RESET", GLUSTER_CLI_UUID_RESET, glusterd_handle_cli_uuid_reset, NULL, 0},
[GLUSTER_CLI_START_VOLUME] = { "START_VOLUME", GLUSTER_CLI_START_VOLUME, glusterd_handle_cli_start_volume, NULL, 0},
[GLUSTER_CLI_STOP_VOLUME] = { "STOP_VOLUME", GLUSTER_CLI_STOP_VOLUME, glusterd_handle_cli_stop_volume, NULL, 0},
[GLUSTER_CLI_DELETE_VOLUME] = { "DELETE_VOLUME", GLUSTER_CLI_DELETE_VOLUME, glusterd_handle_cli_delete_volume, NULL, 0},
diff --git a/xlators/mgmt/glusterd/src/glusterd.c b/xlators/mgmt/glusterd/src/glusterd.c
index bd9e6e031fa..c4629c795da 100644
--- a/xlators/mgmt/glusterd/src/glusterd.c
+++ b/xlators/mgmt/glusterd/src/glusterd.c
@@ -43,7 +43,6 @@
#include "glusterd-mountbroker.h"
-static uuid_t glusterd_uuid;
extern struct rpcsvc_program gluster_handshake_prog;
extern struct rpcsvc_program gluster_pmap_prog;
extern glusterd_op_info_t opinfo;
@@ -93,28 +92,47 @@ glusterd_uuid_init ()
ret = glusterd_retrieve_uuid ();
if (ret == 0) {
- uuid_copy (glusterd_uuid, priv->uuid);
gf_log (this->name, GF_LOG_INFO,
"retrieved UUID: %s", uuid_utoa (priv->uuid));
return 0;
}
- uuid_generate (glusterd_uuid);
+ ret = glusterd_uuid_generate_save ();
- gf_log (this->name, GF_LOG_INFO, "generated UUID: %s",
- uuid_utoa (glusterd_uuid));
+ if (ret) {
+ gf_log ("glusterd", GF_LOG_ERROR,
+ "Unable to generate and save new UUID");
+ return ret;
+ }
+
+ return 0;
+}
+
+int
+glusterd_uuid_generate_save ()
+{
+ int ret = -1;
+ glusterd_conf_t *priv = NULL;
+ xlator_t *this = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ priv = this->private;
+ GF_ASSERT (priv);
- uuid_copy (priv->uuid, glusterd_uuid);
+ uuid_generate (priv->uuid);
+
+ gf_log (this->name, GF_LOG_INFO, "generated UUID: %s",
+ uuid_utoa (priv->uuid));
ret = glusterd_store_global_info (this);
- if (ret) {
+ if (ret)
gf_log (this->name, GF_LOG_ERROR,
- "Unable to store generated UUID");
- return ret;
- }
+ "Unable to store the generated uuid %s",
+ uuid_utoa (priv->uuid));
- return 0;
+ return ret;
}
int
diff --git a/xlators/mgmt/glusterd/src/glusterd.h b/xlators/mgmt/glusterd/src/glusterd.h
index fddfabd344f..95353f06514 100644
--- a/xlators/mgmt/glusterd/src/glusterd.h
+++ b/xlators/mgmt/glusterd/src/glusterd.h
@@ -389,6 +389,8 @@ typedef ssize_t (*gd_serialize_t) (struct iovec outmsg, void *args);
int glusterd_uuid_init();
+int glusterd_uuid_generate_save ();
+
#define MY_UUID (__glusterd_uuid())
static inline unsigned char *
generated by cgit (git 2.34.1) at 2024-11-14 23:20:20 +0000