Reported-by: Jeremy Schneider
Author: Michael Paquier
Discussion: https://postgr.es/m/CA+fnDAZaPCwfY8Lp-pfLnUGFAXRu1VfLyRgdup-L-kwcBj8MqQ@mail.gmail.com
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- 0">LWLock>
+ 2">LWLock>
ShmemIndexLock>
Waiting to find or allocate space in shared memory.
OldSnapshotTimeMapLock>
Waiting to read or update old snapshot control information.
+ |
+ BackendRandomLock>
+ Waiting to generate a random number.
+
+ |
+ LogicalRepWorkerLock>
+ Waiting for action on logical replication worker to finish.
+
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CLogTruncationLock>
Waiting to truncate the write-ahead log or waiting for write-ahead log truncation to finish.