Thread: pgsql: Track the timeline associated with minRecoveryPoint, for more sa
pgsql: Track the timeline associated with minRecoveryPoint, for more sa
From
Heikki Linnakangas
Date:
Track the timeline associated with minRecoveryPoint, for more sanity checks. This allows recovery to notice certain incorrect recovery scenarios. If a server has recovered to point X on timeline 5, and you restart recovery, it better be on timeline 5 when it reaches point X again, not on some timeline with a higher ID. This can happen e.g if you a standby server is shut down, a new timeline appears in the WAL archive, and the standby server is restarted. It will try to follow the new timeline, which is wrong because some WAL on the old timeline was already replayed before shutdown. Requires an initdb (or at least pg_resetxlog), because this adds a field to the control file. Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/5ce108bf320d23070c53d3437fd3dc799a97310c Modified Files -------------- src/backend/access/transam/xlog.c | 65 +++++++++++++++++++++++++++++- src/bin/pg_controldata/pg_controldata.c | 4 +- src/bin/pg_resetxlog/pg_resetxlog.c | 1 + src/include/catalog/pg_control.h | 3 +- 4 files changed, 68 insertions(+), 5 deletions(-)