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Fix assertion failure in apply worker.

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During exit, the logical replication apply worker tries to release session
level locks, if any. However, if the apply worker exits due to an error
before its connection is initialized, trying to release locks can lead to
assertion failure. The locks will be acquired once the worker is
initialized, so we don't need to release them till the worker
initialization is complete.

Reported-by: Alexander Lakhin
Author: Hou Zhijie based on inputs from Sawada Masahiko and Amit Kapila
Reviewed-by: Amit Kapila
Discussion: https://postgr.es/m/2185d65f-5aae-3efa-c48f-fb42b173ef5c@gmail.com
This commit is contained in:
Amit Kapila
2023-05-03 10:13:13 +05:30
parent 6489875ce6
commit de63f8dade
4 changed files with 17 additions and 1 deletions
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2
src/include/replication/worker_internal.h
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@@ -225,6 +225,8 @@ extern PGDLLIMPORT LogicalRepWorker *MyLogicalRepWorker;
extern PGDLLIMPORT bool in_remote_transaction;
extern PGDLLIMPORT bool InitializingApplyWorker;
extern void logicalrep_worker_attach(int slot);
extern LogicalRepWorker *logicalrep_worker_find(Oid subid, Oid relid,
bool only_running);