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Commitb82640d

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Send statistics collected during shutdown checkpoint to the stats collector.
When shutdown is requested, checkpointer performs checkpoint orrestartpoint, and updates the statistics, before it exits. But previouslycheckpointer didn't send those statistics to the stats collector.Shutdown checkpoint and restartpoint are treated as requested onesinstead of scheduled ones, so the number of them are counted inpg_stat_bgwriter.checkpoints_req column.Author: Masahiro IkedaReviewed-by: Fujii MasaoDiscussion:https://postgr.es/m/0509ad67b585a5b86a83d445dfa75392@oss.nttdata.com
1 parent33394ee commitb82640d

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‎src/backend/postmaster/checkpointer.c

Lines changed: 12 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -572,8 +572,19 @@ HandleCheckpointerInterrupts(void)
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* back to the sigsetjmp block above
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*/
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ExitOnAnyError= true;
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/* Close down the database */
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/*
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* Close down the database.
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*
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* Since ShutdownXLOG() creates restartpoint or checkpoint, and
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* updates the statistics, increment the checkpoint request and send
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* the statistics to the stats collector.
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*/
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BgWriterStats.m_requested_checkpoints++;
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ShutdownXLOG(0,0);
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pgstat_send_bgwriter();
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pgstat_report_wal();
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/* Normal exit from the checkpointer is here */
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proc_exit(0);/* done */
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}

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