fluencelabs/redis
1
0
Fork 0
mirror of https://github.com/fluencelabs/redis synced 2025-03-17 16:10:50 +00:00
Code Issues Projects Releases Wiki Activity

Sentinel: +new-epoch events.

Browse Source
This commit is contained in:
antirez 2013-11-12 13:35:25 +01:00
parent 54c447be52
commit e6b9d5e97e
1 changed files with 14 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
src/sentinel.c
View File

@ -1724,8 +1724,11 @@ void sentinelReceiveHelloMessages(redisAsyncContext *c, void *reply, void *privd
}
/* Update local current_epoch if received current_epoch is greater. */
if (current_epoch > sentinel.current_epoch)
if (current_epoch > sentinel.current_epoch) {
sentinel.current_epoch = current_epoch;
sentinelEvent(REDIS_WARNING,"+new-epoch",ri,"%llu",
(unsigned long long) sentinel.current_epoch);
}
/* Update master info if received configuration is newer. */
if ((msgmaster = sentinelGetMasterByName(token[5])) != NULL) {
@ -2399,15 +2402,18 @@ int compareRunID(const void *a, const void *b) {
* If a vote is not available returns NULL, otherwise return the Sentinel
* runid and populate the leader_epoch with the epoch of the last vote. */
char *sentinelVoteLeader(sentinelRedisInstance *master, uint64_t req_epoch, char *req_runid, uint64_t *leader_epoch) {
if (req_epoch > sentinel.current_epoch)
if (req_epoch > sentinel.current_epoch) {
sentinel.current_epoch = req_epoch;
sentinelEvent(REDIS_WARNING,"+new-epoch",master,"%llu",
(unsigned long long) sentinel.current_epoch);
}
if (master->leader_epoch < req_epoch && sentinel.current_epoch <= req_epoch) {
sdsfree(master->leader);
master->leader = sdsnew(req_runid);
master->leader_epoch = sentinel.current_epoch;
printf("Selected leader %s for epoch %llu\n", master->leader,
(unsigned long long) master->leader_epoch);
sentinelEvent(REDIS_WARNING,"+vote-for-leader",master,"%s %llu",
master->leader, (unsigned long long) master->leader_epoch);
}
*leader_epoch = master->leader_epoch;
@ -2539,7 +2545,9 @@ void sentinelStartFailover(sentinelRedisInstance *master) {
master->failover_state = SENTINEL_FAILOVER_STATE_WAIT_START;
master->flags |= SRI_FAILOVER_IN_PROGRESS;
master->failover_epoch = ++sentinel.current_epoch;
sentinelEvent(REDIS_WARNING,"+failover-triggered",master,"%@");
sentinelEvent(REDIS_WARNING,"+new-epoch",master,"%llu",
(unsigned long long) sentinel.current_epoch);
sentinelEvent(REDIS_WARNING,"+try-failover",master,"%@");
master->failover_start_time = mstime();
master->failover_state_change_time = mstime();
}
@ -2658,6 +2666,7 @@ void sentinelFailoverWaitStart(sentinelRedisInstance *ri) {
/* If I'm not the leader, I can't continue with the failover. */
if (!isleader) return;
sentinelEvent(REDIS_WARNING,"+elected-leader",ri,"%@");
/* Start the failover going to the next state if enough time has
* elapsed. */