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give startup process in replica priority to apply locks #932

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give startup process in replica priority to apply locks #932

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c848bc4
give startup process in replica priority to apply locks
thesuhas Mar 20, 2026
75d8f5b
remove unnecessary standby mode check
thesuhas Mar 23, 2026
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3 changes: 2 additions & 1 deletion src/backend/storage/lmgr/lwlock.c
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,7 @@
#include "miscadmin.h"
#include "pg_trace.h"
#include "pgstat.h"
#include "access/xlogrecovery.h"
#include "port/pg_bitutils.h"
#include "postmaster/postmaster.h"
#include "storage/proc.h"
Expand Down Expand Up @@ -1057,7 +1058,7 @@ LWLockQueueSelf(LWLock *lock, LWLockMode mode)
MyProc->lwWaitMode = mode;

/* LW_WAIT_UNTIL_FREE waiters are always at the front of the queue */
if (mode == LW_WAIT_UNTIL_FREE)
if (mode == LW_WAIT_UNTIL_FREE || AmStartupProcess())
proclist_push_head(&lock->waiters, MyProcNumber, lwWaitLink);
else
proclist_push_tail(&lock->waiters, MyProcNumber, lwWaitLink);
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