From dbf5a9f6899bedf28b482fc03a4a2b0571e92e9b Mon Sep 17 00:00:00 2001 From: Soumyadeep Chakraborty Date: Tue, 2 Mar 2021 17:41:20 -0800 Subject: [PATCH 1/1] Prevent checkpointer from writing to older timeline Co-authored-by: Kevin Yeap --- src/backend/access/transam/twophase.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/src/backend/access/transam/twophase.c b/src/backend/access/transam/twophase.c index 80d2d20d6cc..081aee6217e 100644 --- a/src/backend/access/transam/twophase.c +++ b/src/backend/access/transam/twophase.c @@ -1740,6 +1740,16 @@ CheckPointTwoPhase(XLogRecPtr redo_horizon) } LWLockRelease(TwoPhaseStateLock); + if (serialized_xacts > 0) + { + /* + * In order to ensure that we write the checkpoint record to the latest + * timeline, refresh ThisTimeLineID. This is necessary if we had read + * two phase data from an earlier timeline, above. + */ + InitXLOGAccess(); + } + /* * Flush unconditionally the parent directory to make any information * durable on disk. Two-phase files could have been removed and those -- 2.25.1