Add a wait_for_catchup() before immediate stop of a test master.

nmisch · nmisch · commit d60cfb6bf2b4 · 2020-04-13T18:47:28.000-07:00
Per buildfarm member hoverfly, a slow walsender could make the test fail. Back-patch to v10, where the test was introduced. Discussion: https://postgr.es/m/20200414013849.GA886648@rfd.leadboat.com
diff --git a/src/test/recovery/t/010_logical_decoding_timelines.pl b/src/test/recovery/t/010_logical_decoding_timelines.pl
@@ -131,6 +131,7 @@
 	'xmin on physical slot must not be lower than catalog_xmin');
 
 $node_master->safe_psql('postgres', 'CHECKPOINT');
+$node_master->wait_for_catchup($node_replica, 'write');
 
 # Boom, crash
 $node_master->stop('immediate');
