From a10be37254fe06ca0d16f34d2fd5933d3adfa66e Mon Sep 17 00:00:00 2001 From: Michael Paquier Date: Tue, 20 Jun 2023 10:25:41 +0900 Subject: [PATCH] Enable archiving in recovery TAP test 009_twophase.pl This is a follow-up of f663b00, that has been committed to v13 and v14, tweaking the TAP test for two-phase transactions so as it provides coverage for the bug that has been fixed. This change is done in its own commit for clarity, as v15 and HEAD did not show the problematic behavior, still missed coverage for it. While on it, this adds a comment about the dependency of the last partial segment rename and RecoverPreparedTransactions() at the end of recovery, as that can be easy to miss. Author: Michael Paquier Reviewed-by: Kyotaro Horiguchi Discussion: https://postgr.es/m/743b9b45a2d4013bd90b6a5cba8d6faeb717ee34.camel@cybertec.at Backpatch-through: 13 --- src/backend/access/transam/xlog.c | 6 +++++- src/test/recovery/t/009_twophase.pl | 4 +++- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index 691b9622dad..59f94b05d4a 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -5544,7 +5544,11 @@ StartupXLOG(void) TrimCLOG(); TrimMultiXact(); - /* Reload shared-memory state for prepared transactions */ + /* + * Reload shared-memory state for prepared transactions. This needs to + * happen before renaming the last partial segment of the old timeline as + * it may be possible that we have to recovery some transactions from it. + */ RecoverPreparedTransactions(); /* Shut down xlogreader */ diff --git a/src/test/recovery/t/009_twophase.pl b/src/test/recovery/t/009_twophase.pl index 3e25b8c4ebd..ca17a059114 100644 --- a/src/test/recovery/t/009_twophase.pl +++ b/src/test/recovery/t/009_twophase.pl @@ -32,7 +32,9 @@ sub configure_and_reload # Setup london node my $node_london = PostgreSQL::Test::Cluster->new("london"); -$node_london->init(allows_streaming => 1); +# Archiving is used to provide coverage with the creation of .partial segments +# done at the end of recovery and the recovery of two-phase transactions. +$node_london->init(allows_streaming => 1, has_archiving => 1); $node_london->append_conf( 'postgresql.conf', qq( max_prepared_transactions = 10