Fix corner-case bug in tracking of latest removed WAL segment during
Heikki Linnakangas <heikki.linnakangas@iki.fi>
Fix corner-case bug in tracking of latest removed WAL segment during streaming replication. We used log/seg 0/0 to indicate that no WAL segments have been removed since startup, but 0/0 is a valid value for the very first WAL segment after initdb. To make that disambiguous, store (latest removed WAL segment + 1) in the global variable. Per report from Matt Chesler, also reproduced by Greg Smith.
Files
| Path | Change | +/− |
|---|---|---|
| src/backend/access/transam/xlog.c | modified | +6 −3 |
| src/backend/replication/walsender.c | modified | +1 −1 |