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Checkpointer starts before bgwriter to avoid missing fsync requests.

Noted while testing Hot Standby startup.

1 parent1ec6a2b commita297d64Copy full SHA for a297d64

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src/backend/postmaster
- postmaster.c

1 file changed

-6

lines changed

`‎src/backend/postmaster/postmaster.c‎`

Lines changed: 6 additions & 6 deletions

Original file line number	Diff line number	Diff line change
`@@ -1378,10 +1378,10 @@ ServerLoop(void)`
`1378`	`1378`	`if (pmState==PM_RUN\|\|pmState==PM_RECOVERY\|\|`
`1379`	`1379`	`pmState==PM_HOT_STANDBY)`
`1380`	`1380`	`{`
`1381`		`-if (BgWriterPID==0)`
`1382`		`-BgWriterPID=StartBackgroundWriter();`
`1383`	`1381`	`if (CheckpointerPID==0)`
`1384`	`1382`	`CheckpointerPID=StartCheckpointer();`
	`1383`	`+if (BgWriterPID==0)`
	`1384`	`+BgWriterPID=StartBackgroundWriter();`
`1385`	`1385`	`}`
`1386`	`1386`
`1387`	`1387`	`/*`
`@@ -2372,10 +2372,10 @@ reaper(SIGNAL_ARGS)`
`2372`	`2372`	`* when we entered consistent recovery state. It doesn't matter`
`2373`	`2373`	`* if this fails, we'll just try again later.`
`2374`	`2374`	`*/`
`2375`		`-if (BgWriterPID==0)`
`2376`		`-BgWriterPID=StartBackgroundWriter();`
`2377`	`2375`	`if (CheckpointerPID==0)`
`2378`	`2376`	`CheckpointerPID=StartCheckpointer();`
	`2377`	`+if (BgWriterPID==0)`
	`2378`	`+BgWriterPID=StartBackgroundWriter();`
`2379`	`2379`	`if (WalWriterPID==0)`
`2380`	`2380`	`WalWriterPID=StartWalWriter();`
`2381`	`2381`
`@@ -4239,10 +4239,10 @@ sigusr1_handler(SIGNAL_ARGS)`
`4239`	`4239`	`* Crank up the background tasks. It doesn't matter if this fails,`
`4240`	`4240`	`* we'll just try again later.`
`4241`	`4241`	`*/`
`4242`		`-Assert(BgWriterPID==0);`
`4243`		`-BgWriterPID=StartBackgroundWriter();`
`4244`	`4242`	`Assert(CheckpointerPID==0);`
`4245`	`4243`	`CheckpointerPID=StartCheckpointer();`
	`4244`	`+Assert(BgWriterPID==0);`
	`4245`	`+BgWriterPID=StartBackgroundWriter();`
`4246`	`4246`
`4247`	`4247`	`pmState=PM_RECOVERY;`
`4248`	`4248`	`}`

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`‎src/backend/postmaster/postmaster.c‎`

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