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antirez authored
Lack of check of the SRI_PROMOTED flag caused Sentienl to act with the promoted slave turned into a master during failover like if it was a normal instance. Normally this problem was not apparent because during real failovers the old master is down so the bugged code path was not entered, however with manual failovers via the SENTINEL FAILOVER command, the problem was easily triggered. This commit prevents promoted slaves from getting reconfigured, moreover we now explicitly check that during a failover the slave turning into a master is the one we selected for promotion and not a different one.
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