pgsql: fsync pg_logical/mappings in CheckPointLogicalRewriteHeap().

From: Andres Freund <andres(at)anarazel(dot)de>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: fsync pg_logical/mappings in CheckPointLogicalRewriteHeap().
Date: 2022-01-21 19:49:31
Message-ID: E1nAzud-00032S-O5@gemulon.postgresql.org
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fsync pg_logical/mappings in CheckPointLogicalRewriteHeap().

While individual logical rewrite files were synced to disk, the directory was
not. On some filesystems that could lead to loosing directory entries after a
crash.

Reported-By: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Author: Nathan Bossart <bossartn(at)amazon(dot)com>
Discussion: https://postgr.es/m/867F2E29-2782-4869-970E-B984C6D35A8F@amazon.com
Backpatch: 10-

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/1fabec7d7c389181424fa7881632a415584ca7b7

Modified Files
--------------
src/backend/access/heap/rewriteheap.c | 3 +++
1 file changed, 3 insertions(+)

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