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17d3fcdc39
Previously "waiting" could appear twice via PS in case of lock conflict in hot standby mode. Specifically this issue happend when the delay in WAL application determined by max_standby_archive_delay and max_standby_streaming_delay had passed but it took more than 500 msec to cancel all the conflicting transactions. Especially we can observe this easily by setting those delay parameters to -1. The cause of this issue was that WaitOnLock() and ResolveRecoveryConflictWithVirtualXIDs() added "waiting" to the process title in that case. This commit prevents ResolveRecoveryConflictWithVirtualXIDs() from reporting waiting in case of lock conflict, to fix the bug. Back-patch to all back branches. Author: Masahiko Sawada Reviewed-by: Fujii Masao Discussion: https://postgr.es/m/CA+fd4k4mXWTwfQLS3RPwGr4xnfAEs1ysFfgYHvmmoUgv6Zxvmg@mail.gmail.com |
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