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authorKrishnan Parthasarathi <kparthas@redhat.com>2015-01-27 16:44:20 +0530
committerKaushal M <kaushal@redhat.com>2015-04-02 10:58:13 -0700
commitf66a85a484d41e68611f68d70e458c67f484d2e1 (patch)
tree6c0f9d051c987814b1c5e034f094a97a8c9c2e13 /xlators/mgmt/glusterd
parent08d35497e30714058002b4b0095171f1dad73ddc (diff)
glusterd: compute quorum on peers in cluster
... and not on peers participating in an ongoing transaction. Change-Id: I6bdb80fd3bf3e7593fdf37e45a441d4a490469b8 BUG: 1205592 Signed-off-by: Kaushal M <kaushal@redhat.com> Reviewed-on: http://review.gluster.org/9493 Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
Diffstat (limited to 'xlators/mgmt/glusterd')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-handler.c4
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-mgmt.c6
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-server-quorum.c55
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-server-quorum.h20
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c15
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-snapshot-utils.h6
6 files changed, 33 insertions, 73 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-handler.c b/xlators/mgmt/glusterd/src/glusterd-handler.c
index 03c28c541fe..aecf59f9626 100644
--- a/xlators/mgmt/glusterd/src/glusterd-handler.c
+++ b/xlators/mgmt/glusterd/src/glusterd-handler.c
@@ -1046,7 +1046,7 @@ __glusterd_handle_cli_probe (rpcsvc_request_t *req)
}
if (glusterd_is_any_volume_in_server_quorum (this) &&
- !does_gd_meet_server_quorum (this, NULL, _gf_false)) {
+ !does_gd_meet_server_quorum (this)) {
glusterd_xfer_cli_probe_resp (req, -1, GF_PROBE_QUORUM_NOT_MET,
NULL, hostname, port, dict);
gf_msg (this->name, GF_LOG_CRITICAL, 0,
@@ -1220,7 +1220,7 @@ __glusterd_handle_cli_deprobe (rpcsvc_request_t *req)
if (!(flags & GF_CLI_FLAG_OP_FORCE)) {
if (glusterd_is_any_volume_in_server_quorum (this) &&
- !does_gd_meet_server_quorum (this, NULL, _gf_false)) {
+ !does_gd_meet_server_quorum (this)) {
gf_msg (this->name, GF_LOG_CRITICAL, 0,
GD_MSG_SERVER_QUORUM_NOT_MET,
"Server quorum not met. Rejecting operation.");
diff --git a/xlators/mgmt/glusterd/src/glusterd-mgmt.c b/xlators/mgmt/glusterd/src/glusterd-mgmt.c
index 1c46e0e334b..8cd2f47fd31 100644
--- a/xlators/mgmt/glusterd/src/glusterd-mgmt.c
+++ b/xlators/mgmt/glusterd/src/glusterd-mgmt.c
@@ -1840,8 +1840,7 @@ glusterd_mgmt_v3_initiate_snap_phases (rpcsvc_request_t *req, glusterd_op_t op,
}
/* quorum check of the volume is done here */
- ret = glusterd_snap_quorum_check (req_dict, _gf_false, &op_errstr,
- &xaction_peers);
+ ret = glusterd_snap_quorum_check (req_dict, _gf_false, &op_errstr);
if (ret) {
gf_log (this->name, GF_LOG_WARNING,
"Volume quorum check failed");
@@ -1926,8 +1925,7 @@ unbarrier:
/*Do a quorum check if the commit phase is successful*/
if (success) {
//quorum check of the snapshot volume
- ret = glusterd_snap_quorum_check (dict, _gf_true, &op_errstr,
- &xaction_peers);
+ ret = glusterd_snap_quorum_check (dict, _gf_true, &op_errstr);
if (ret) {
gf_log (this->name, GF_LOG_WARNING,
"Snapshot Volume quorum check failed");
diff --git a/xlators/mgmt/glusterd/src/glusterd-server-quorum.c b/xlators/mgmt/glusterd/src/glusterd-server-quorum.c
index 6178f273629..8d8acb17513 100644
--- a/xlators/mgmt/glusterd/src/glusterd-server-quorum.c
+++ b/xlators/mgmt/glusterd/src/glusterd-server-quorum.c
@@ -79,8 +79,6 @@ out:
return required;
}
-/* This function should not be used when the quorum validation needs to happen
- * on non-global peer list */
int
glusterd_validate_quorum (xlator_t *this, glusterd_op_t op,
dict_t *dict, char **op_errstr)
@@ -106,9 +104,7 @@ glusterd_validate_quorum (xlator_t *this, glusterd_op_t op,
goto out;
}
- /* Passing NULL implies quorum calculation will happen on global peer
- * list */
- if (does_gd_meet_server_quorum (this, NULL, _gf_false)) {
+ if (does_gd_meet_server_quorum (this)) {
ret = 0;
goto out;
}
@@ -128,8 +124,9 @@ glusterd_is_quorum_option (char *option)
{
gf_boolean_t res = _gf_false;
int i = 0;
- char *keys[] = {GLUSTERD_QUORUM_TYPE_KEY,
- GLUSTERD_QUORUM_RATIO_KEY, NULL};
+ static const char * const keys[] = {GLUSTERD_QUORUM_TYPE_KEY,
+ GLUSTERD_QUORUM_RATIO_KEY,
+ NULL};
for (i = 0; keys[i]; i++) {
if (strcmp (option, keys[i]) == 0) {
@@ -200,9 +197,7 @@ _does_quorum_meet (int active_count, int quorum_count)
int
glusterd_get_quorum_cluster_counts (xlator_t *this, int *active_count,
- int *quorum_count,
- struct cds_list_head *peer_list,
- gf_boolean_t _local_xaction_peers)
+ int *quorum_count)
{
glusterd_peerinfo_t *peerinfo = NULL;
glusterd_conf_t *conf = NULL;
@@ -221,26 +216,19 @@ glusterd_get_quorum_cluster_counts (xlator_t *this, int *active_count,
*active_count = 1;
rcu_read_lock ();
- if (!peer_list) {
- cds_list_for_each_entry (peerinfo, &conf->peers, uuid_list) {
- GLUSTERD_QUORUM_COUNT (peerinfo, inquorum_count,
- active_count, out);
- }
- } else {
- if (_local_xaction_peers) {
- list_for_each_local_xaction_peers (peerinfo,
- peer_list) {
- GLUSTERD_QUORUM_COUNT (peerinfo, inquorum_count,
- active_count, out);
- }
- } else {
- cds_list_for_each_entry (peerinfo, peer_list,
- op_peers_list) {
- GLUSTERD_QUORUM_COUNT (peerinfo, inquorum_count,
- active_count, out);
- }
+ cds_list_for_each_entry_rcu (peerinfo, &conf->peers, uuid_list) {
+ if (peerinfo->quorum_contrib == QUORUM_WAITING) {
+ rcu_read_unlock ();
+ goto out;
}
+
+ if (_is_contributing_to_quorum (peerinfo->quorum_contrib))
+ inquorum_count = inquorum_count + 1;
+ if (active_count && (peerinfo->quorum_contrib == QUORUM_UP))
+ *active_count = *active_count + 1;
}
+ rcu_read_unlock ();
+
ret = dict_get_str (conf->opts, GLUSTERD_QUORUM_RATIO_KEY, &val);
if (ret == 0) {
ratio = _gf_true;
@@ -257,7 +245,6 @@ glusterd_get_quorum_cluster_counts (xlator_t *this, int *active_count,
*quorum_count = count;
ret = 0;
out:
- rcu_read_unlock ();
return ret;
}
@@ -295,8 +282,7 @@ glusterd_is_any_volume_in_server_quorum (xlator_t *this)
}
gf_boolean_t
-does_gd_meet_server_quorum (xlator_t *this, struct cds_list_head *peers_list,
- gf_boolean_t _local_xaction_peers)
+does_gd_meet_server_quorum (xlator_t *this)
{
int quorum_count = 0;
int active_count = 0;
@@ -306,9 +292,7 @@ does_gd_meet_server_quorum (xlator_t *this, struct cds_list_head *peers_list,
conf = this->private;
ret = glusterd_get_quorum_cluster_counts (this, &active_count,
- &quorum_count,
- peers_list,
- _local_xaction_peers);
+ &quorum_count);
if (ret)
goto out;
@@ -406,8 +390,7 @@ glusterd_do_quorum_action ()
{
ret = glusterd_get_quorum_cluster_counts (this, &active_count,
- &quorum_count, NULL,
- _gf_false);
+ &quorum_count);
if (ret)
goto unlock;
diff --git a/xlators/mgmt/glusterd/src/glusterd-server-quorum.h b/xlators/mgmt/glusterd/src/glusterd-server-quorum.h
index 509a60d9f31..f43cdbbca10 100644
--- a/xlators/mgmt/glusterd/src/glusterd-server-quorum.h
+++ b/xlators/mgmt/glusterd/src/glusterd-server-quorum.h
@@ -15,18 +15,6 @@
#include "config.h"
#endif
-#define GLUSTERD_QUORUM_COUNT(peerinfo, inquorum_count,\
- active_count, _exit)\
-do {\
- if (peerinfo->quorum_contrib == QUORUM_WAITING)\
- goto _exit;\
- if (_is_contributing_to_quorum (peerinfo->quorum_contrib))\
- inquorum_count = inquorum_count + 1;\
- if (active_count && (peerinfo->quorum_contrib == QUORUM_UP))\
- *active_count = *active_count + 1;\
-} while (0)
-
-
int
glusterd_validate_quorum (xlator_t *this, glusterd_op_t op, dict_t *dict,
char **op_errstr);
@@ -39,9 +27,7 @@ glusterd_do_quorum_action ();
int
glusterd_get_quorum_cluster_counts (xlator_t *this, int *active_count,
- int *quorum_count,
- struct cds_list_head *peer_list,
- gf_boolean_t _local__xaction_peers);
+ int *quorum_count);
gf_boolean_t
glusterd_is_quorum_option (char *option);
@@ -53,7 +39,5 @@ gf_boolean_t
glusterd_is_any_volume_in_server_quorum (xlator_t *this);
gf_boolean_t
-does_gd_meet_server_quorum (xlator_t *this,
- struct cds_list_head *peers_list,
- gf_boolean_t _local__xaction_peers);
+does_gd_meet_server_quorum (xlator_t *this);
#endif /* _GLUSTERD_SERVER_QUORUM_H */
diff --git a/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c
index f27bb5d6e85..404866dff14 100644
--- a/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c
@@ -2559,8 +2559,7 @@ out:
int32_t
glusterd_snap_quorum_check_for_create (dict_t *dict, gf_boolean_t snap_volume,
- char **op_errstr,
- struct cds_list_head *peers_list)
+ char **op_errstr)
{
int8_t snap_force = 0;
int32_t force = 0;
@@ -2612,7 +2611,7 @@ glusterd_snap_quorum_check_for_create (dict_t *dict, gf_boolean_t snap_volume,
* information will be saved by glusterd and if glusterds are not in
* quorum, then better fail the snapshot
*/
- if (!does_gd_meet_server_quorum (this, peers_list, _gf_true)) {
+ if (!does_gd_meet_server_quorum (this)) {
snprintf (err_str, sizeof (err_str),
"glusterds are not in quorum");
gf_log (this->name, GF_LOG_WARNING, "%s", err_str);
@@ -2748,8 +2747,7 @@ out:
int32_t
glusterd_snap_quorum_check (dict_t *dict, gf_boolean_t snap_volume,
- char **op_errstr,
- struct cds_list_head *peers_list)
+ char **op_errstr)
{
int32_t ret = -1;
xlator_t *this = NULL;
@@ -2775,8 +2773,7 @@ glusterd_snap_quorum_check (dict_t *dict, gf_boolean_t snap_volume,
switch (snap_command) {
case GF_SNAP_OPTION_TYPE_CREATE:
ret = glusterd_snap_quorum_check_for_create (dict, snap_volume,
- op_errstr,
- peers_list);
+ op_errstr);
if (ret) {
gf_log (this->name, GF_LOG_WARNING, "Quorum check"
"failed during snapshot create command");
@@ -2785,7 +2782,7 @@ glusterd_snap_quorum_check (dict_t *dict, gf_boolean_t snap_volume,
break;
case GF_SNAP_OPTION_TYPE_CLONE:
- if (!does_gd_meet_server_quorum (this, peers_list, _gf_true)) {
+ if (!does_gd_meet_server_quorum (this)) {
ret = -1;
snprintf (err_str, sizeof (err_str),
"glusterds are not in quorum");
@@ -2800,7 +2797,7 @@ glusterd_snap_quorum_check (dict_t *dict, gf_boolean_t snap_volume,
break;
case GF_SNAP_OPTION_TYPE_DELETE:
case GF_SNAP_OPTION_TYPE_RESTORE:
- if (!does_gd_meet_server_quorum (this, peers_list, _gf_true)) {
+ if (!does_gd_meet_server_quorum (this)) {
ret = -1;
snprintf (err_str, sizeof (err_str),
"glusterds are not in quorum");
diff --git a/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.h b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.h
index d152d8ca6a5..07a9709b65f 100644
--- a/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.h
+++ b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.h
@@ -119,13 +119,11 @@ gd_import_volume_snap_details (dict_t *dict, glusterd_volinfo_t *volinfo,
int32_t
glusterd_snap_quorum_check (dict_t *dict, gf_boolean_t snap_volume,
- char **op_errstr,
- struct cds_list_head *peers_list);
+ char **op_errstr);
int32_t
glusterd_snap_quorum_check_for_create (dict_t *dict, gf_boolean_t snap_volume,
- char **op_errstr,
- struct cds_list_head *peers_list);
+ char **op_errstr);
int32_t
glusterd_snap_brick_create (glusterd_volinfo_t *snap_volinfo,