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Fix two-phase commit test for recovery mode

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The original code had a race condition because it never ensured the
standby was caught up before proceeding; add a wait similar to every
other place that does this.

Author: Michaël Paquier
Discussion: https://postgr.es/m/CAB7nPqTm9p+LCm1mVJYvgpwagRK+uibT-pKq0O2-paOWxT62jw@mail.gmail.com
This commit is contained in:
Alvaro Herrera 2017-09-01 16:51:55 +02:00
parent a6979c3a68
commit 89c59b742a
1 changed files with 8 additions and 0 deletions
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8
src/test/recovery/t/009_twophase.pl
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@ -331,6 +331,14 @@ $cur_master->psql(
CHECKPOINT;
COMMIT PREPARED 'xact_009_13';");
# Ensure that last transaction is replayed on standby.
my $cur_master_lsn =
$cur_master->safe_psql('postgres', "SELECT pg_current_wal_lsn()");
my $caughtup_query =
"SELECT '$cur_master_lsn'::pg_lsn <= pg_last_wal_replay_lsn()";
$cur_standby->poll_query_until('postgres', $caughtup_query)
or die "Timed out while waiting for standby to catch up";
$cur_standby->psql(
'postgres',
"SELECT count(*) FROM t_009_tbl2",