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| author | Simon Riggs <simon@2ndQuadrant.com> | 2010-01-23 16:37:12 +0000 |
|---|---|---|
| committer | Simon Riggs <simon@2ndQuadrant.com> | 2010-01-23 16:37:12 +0000 |
| commit | 959ac58c04130d467fb05e63a3ceb8e2ded404c7 (patch) | |
| tree | 314eeeea7c6c8afa7cbe35bfe5ecde04eff35f71 /src/backend/storage/ipc/procsignal.c | |
| parent | 4fa69e566cf1b836ae8aa9bee24ab0c556cfe94e (diff) | |
| download | postgresql-959ac58c04130d467fb05e63a3ceb8e2ded404c7.tar.gz postgresql-959ac58c04130d467fb05e63a3ceb8e2ded404c7.zip | |
In HS, Startup process sets SIGALRM when waiting for buffer pin. If
woken by alarm we send SIGUSR1 to all backends requesting that they
check to see if they are blocking Startup process. If so, they throw
ERROR/FATAL as for other conflict resolutions. Deadlock stop gap
removed. max_standby_delay = -1 option removed to prevent deadlock.
Diffstat (limited to 'src/backend/storage/ipc/procsignal.c')
| -rw-r--r-- | src/backend/storage/ipc/procsignal.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/backend/storage/ipc/procsignal.c b/src/backend/storage/ipc/procsignal.c index 453d94aea5b..6c38d423f23 100644 --- a/src/backend/storage/ipc/procsignal.c +++ b/src/backend/storage/ipc/procsignal.c @@ -8,7 +8,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/storage/ipc/procsignal.c,v 1.3 2010/01/16 10:05:50 sriggs Exp $ + * $PostgreSQL: pgsql/src/backend/storage/ipc/procsignal.c,v 1.4 2010/01/23 16:37:12 sriggs Exp $ * *------------------------------------------------------------------------- */ @@ -272,5 +272,8 @@ procsignal_sigusr1_handler(SIGNAL_ARGS) if (CheckProcSignal(PROCSIG_RECOVERY_CONFLICT_SNAPSHOT)) RecoveryConflictInterrupt(PROCSIG_RECOVERY_CONFLICT_SNAPSHOT); + if (CheckProcSignal(PROCSIG_RECOVERY_CONFLICT_BUFFERPIN)) + RecoveryConflictInterrupt(PROCSIG_RECOVERY_CONFLICT_BUFFERPIN); + errno = save_errno; } |