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Commite266922

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Make GIN's cleanup pending list process interruptable
Cleanup process could be called by ordinary insert/update and could take a lotof time. Add vacuum_delay_point() to make this process interruptable. Undervacuum this call will also throttle a vacuum process to decrease system load,called from insert/update it will not throttle, and that reduces a latency.Backpatch for all supported branches.Jeff Janes <jeff.janes@gmail.com>
1 parente956808 commite266922

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+3
-5
lines changed

1 file changed

+3
-5
lines changed

‎src/backend/access/gin/ginfast.c

Lines changed: 3 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -810,8 +810,7 @@ ginInsertCleanup(GinState *ginstate,
810810
*/
811811
processPendingPage(&accum,&datums,page,FirstOffsetNumber);
812812

813-
if (vac_delay)
814-
vacuum_delay_point();
813+
vacuum_delay_point();
815814

816815
/*
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* Is it time to flush memory to disk?Flush if we are at the end of
@@ -851,8 +850,7 @@ ginInsertCleanup(GinState *ginstate,
851850
{
852851
ginEntryInsert(ginstate,attnum,key,category,
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list,nlist,NULL);
854-
if (vac_delay)
855-
vacuum_delay_point();
853+
vacuum_delay_point();
856854
}
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858856
/*
@@ -937,7 +935,7 @@ ginInsertCleanup(GinState *ginstate,
937935
/*
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* Read next page in pending list
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*/
940-
CHECK_FOR_INTERRUPTS();
938+
vacuum_delay_point();
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buffer=ReadBuffer(index,blkno);
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LockBuffer(buffer,GIN_SHARE);
943941
page=BufferGetPage(buffer);

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