summaryrefslogtreecommitdiffstats
path: root/xlators/mgmt/glusterd/src/glusterd-sm.c
diff options
context:
space:
mode:
authorPranith Kumar K <pranithk@gluster.com>2012-11-06 12:18:24 +0530
committerVijay Bellur <vbellur@redhat.com>2012-11-23 23:14:50 -0800
commit7c23a94516c5dd21536c259f323a3cc113fdfa0d (patch)
tree36c0efc8a3bbd4976ae56d8e5fff1cccbcef9c93 /xlators/mgmt/glusterd/src/glusterd-sm.c
parent76a4afec6e03d15cb442e819f6fe7b94d6f9f487 (diff)
mgmt/glusterd: Implementation of server-side quorum
Feature-page: http://www.gluster.org/community/documentation/index.php/Features/Server-quorum Change-Id: I747b222519e71022462343d2c1bcd3626e1f9c86 BUG: 839595 Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Reviewed-on: http://review.gluster.org/3811 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-sm.c')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-sm.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-sm.c b/xlators/mgmt/glusterd/src/glusterd-sm.c
index a60eb53e554..5a38fdfecb5 100644
--- a/xlators/mgmt/glusterd/src/glusterd-sm.c
+++ b/xlators/mgmt/glusterd/src/glusterd-sm.c
@@ -959,6 +959,27 @@ glusterd_destroy_friend_event_context (glusterd_friend_sm_event_t *event)
}
}
+gf_boolean_t
+gd_does_peer_affect_quorum (glusterd_friend_sm_state_t old_state,
+ glusterd_friend_sm_event_type_t event_type,
+ glusterd_peerinfo_t *peerinfo)
+{
+ gf_boolean_t affects = _gf_false;
+
+ //When glusterd comes up with friends in BEFRIENDED state in store,
+ //wait until compare-data happens.
+ if ((old_state == GD_FRIEND_STATE_BEFRIENDED) &&
+ (event_type != GD_FRIEND_EVENT_RCVD_ACC) &&
+ (event_type != GD_FRIEND_EVENT_LOCAL_ACC))
+ goto out;
+ if ((peerinfo->state.state == GD_FRIEND_STATE_BEFRIENDED)
+ && peerinfo->connected) {
+ affects = _gf_true;
+ }
+out:
+ return affects;
+}
+
int
glusterd_friend_sm ()
{
@@ -970,6 +991,8 @@ glusterd_friend_sm ()
glusterd_peerinfo_t *peerinfo = NULL;
glusterd_friend_sm_event_type_t event_type = 0;
gf_boolean_t is_await_conn = _gf_false;
+ gf_boolean_t quorum_action = _gf_false;
+ glusterd_friend_sm_state_t old_state = GD_FRIEND_STATE_DEFAULT;
while (!list_empty (&gd_friend_sm_queue)) {
list_for_each_entry_safe (event, tmp, &gd_friend_sm_queue, list) {
@@ -989,6 +1012,7 @@ glusterd_friend_sm ()
glusterd_friend_sm_event_name_get (event_type));
+ old_state = peerinfo->state.state;
state = glusterd_friend_state_table[peerinfo->state.state];
GF_ASSERT (state);
@@ -1029,6 +1053,15 @@ glusterd_friend_sm ()
goto out;
}
+ if (gd_does_peer_affect_quorum (old_state, event_type,
+ peerinfo)) {
+ peerinfo->quorum_contrib = QUORUM_UP;
+ if (peerinfo->quorum_action) {
+ peerinfo->quorum_action = _gf_false;
+ quorum_action = _gf_true;
+ }
+ }
+
ret = glusterd_store_peerinfo (peerinfo);
glusterd_destroy_friend_event_context (event);
@@ -1042,6 +1075,8 @@ glusterd_friend_sm ()
ret = 0;
out:
+ if (quorum_action)
+ glusterd_do_quorum_action ();
return ret;
}