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Sentinel: more sensible delay in master demote after tilt.

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This commit is contained in:
antirez 2013-04-30 15:08:22 +02:00
parent 214adc5051
commit ef05a78e7e
1 changed files with 11 additions and 9 deletions
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20
src/sentinel.c
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@ -1481,18 +1481,20 @@ void sentinelRefreshInstanceInfo(sentinelRedisInstance *ri, const char *info) {
if (ri->flags & SRI_DEMOTE) {
/* If this sentinel was partitioned from the slave's master,
* or tilted recently, wait some time before to act,
* so that DOWN and roles info will be refreshed. */
if (!sentinelRedisInstanceNoDownFor(ri->master,
SENTINEL_INFO_PERIOD*2))
return;
if (mstime()-sentinel.tilt_start_time <
SENTINEL_TILT_PERIOD+ri->master->down_after_period*2)
* so that DOWN and roles INFO will be refreshed. */
mstime_t wait_time = SENTINEL_INFO_PERIOD*2 +
ri->master->down_after_period*2;
if (!sentinelRedisInstanceNoDownFor(ri->master,wait_time) ||
(mstime()-sentinel.tilt_start_time) < wait_time)
return;
/* Old master returned back? Turn it into a slave ASAP if:
/* Old master returned back? Turn it into a slave ASAP if
* we can reach what we believe is the new master now, and
* have a recent role information for it.
*
* We'll clear this flag only when we have the acknowledge
* that it's a slave again. */
* Note: we'll clear the DEMOTE flag only when we have the
* acknowledge that it's a slave again. */
if (ri->master->flags & SRI_MASTER &&
(ri->master->flags & (SRI_S_DOWN|SRI_O_DOWN)) == 0 &&
(mstime() - ri->master->info_refresh) < SENTINEL_INFO_PERIOD*2)