| From: | wangchuanting <wangchuanting(at)huawei(dot)com> |
|---|---|
| To: | pgsql-bugs(at)postgresql(dot)org |
| Subject: | Re: BUG #14680: startup process on standby encounter a deadlock of TwoPhaseStateLock when redo 2PC xlog |
| Date: | 2017-06-05 11:32:17 |
| Message-ID: | 1496662337584-5964796.post@n3.nabble.com |
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| Thread: | |
| Lists: | pgsql-bugs pgsql-hackers |
Hi, Michael
I don't understand why the patch remove TwoPhaseStateLock in MarkAsPrepared.
if so:
1. does it need remove lock acquire in MarkAsPreparing also?
2. MarkAsPrepared will call ProcArrayAdd, and in ProcArrayAdd it acquires
ProcArrayLock, we should carefully handle the lock sequence about these two
locks.
--
View this message in context: http://www.postgresql-archive.org/BUG-14680-startup-process-on-standby-encounter-a-deadlock-of-TwoPhaseStateLock-when-redo-2PC-xlog-tp5964069p5964796.html
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