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| author | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2015-03-09 17:44:00 -0300 |
|---|---|---|
| committer | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2015-03-09 17:44:00 -0300 |
| commit | 4f3924d9cd438ba4e6fd639460f8c859c65d45a3 (patch) | |
| tree | 748f52461ea81ff16239bc156f7950c597eefda0 /src/include/access/commit_ts.h | |
| parent | e3f1c24b992acb88e4ccf33118640aee4b11dd47 (diff) | |
| download | postgresql-4f3924d9cd438ba4e6fd639460f8c859c65d45a3.tar.gz postgresql-4f3924d9cd438ba4e6fd639460f8c859c65d45a3.zip | |
Keep CommitTs module in sync in standby and master
We allow this module to be turned off on restarts, so a restart time
check is enough to activate or deactivate the module; however, if there
is a standby replaying WAL emitted from a master which is restarted, but
the standby isn't, the state in the standby becomes inconsistent and can
easily be crashed.
Fix by activating and deactivating the module during WAL replay on
parameter change as well as on system start.
Problem reported by Fujii Masao in
http://www.postgresql.org/message-id/CAHGQGwFhJ3CnHo1CELEfay18yg_RA-XZT-7D8NuWUoYSZ90r4Q@mail.gmail.com
Author: Petr Jelínek
Diffstat (limited to 'src/include/access/commit_ts.h')
| -rw-r--r-- | src/include/access/commit_ts.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/include/access/commit_ts.h b/src/include/access/commit_ts.h index ed3976c32df..93d1217f766 100644 --- a/src/include/access/commit_ts.h +++ b/src/include/access/commit_ts.h @@ -39,11 +39,13 @@ extern Size CommitTsShmemSize(void); extern void CommitTsShmemInit(void); extern void BootStrapCommitTs(void); extern void StartupCommitTs(void); +extern void ActivateCommitTs(void); +extern void DeactivateCommitTs(bool do_wal); extern void CompleteCommitTsInitialization(void); extern void ShutdownCommitTs(void); extern void CheckPointCommitTs(void); extern void ExtendCommitTs(TransactionId newestXact); -extern void TruncateCommitTs(TransactionId oldestXact); +extern void TruncateCommitTs(TransactionId oldestXact, bool do_wal); extern void SetCommitTsLimit(TransactionId oldestXact, TransactionId newestXact); extern void AdvanceOldestCommitTs(TransactionId oldestXact); |