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Add code to print information about a detected deadlock cycle. The

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printed data is comparable to what you could read in the pg_locks view,
were you fortunate enough to have been looking at it at the right time.
This commit is contained in:
Tom Lane
2003-01-16 21:01:45 +00:00
parent 136828c699
commit 227a404cf4
4 changed files with 166 additions and 12 deletions
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5
src/backend/storage/lmgr/proc.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.127 2002/10/31 21:34:16 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/lmgr/proc.c,v 1.128 2003/01/16 21:01:44 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -566,8 +566,9 @@ ProcSleep(LOCKMETHODTABLE *lockMethodTable,
* up correctly is to call RemoveFromWaitQueue(), but
* we can't do that until we are *on* the wait queue.
* So, set a flag to check below, and break out of
* loop.
* loop. Also, record deadlock info for later message.
*/
RememberSimpleDeadLock(MyProc, lockmode, lock, proc);
early_deadlock = true;
break;
}