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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2001-02-26 00:50:08 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2001-02-26 00:50:08 +0000 |
| commit | 9c9936587c6a9aeb8b425a499cf73e5e7af38ddd (patch) | |
| tree | f1d7328907a9ffb8a9319b689a9bb40f7e1d0313 /src/backend/access/transam/xlog.c | |
| parent | 60774e821060dd6d6395504d4ccda107d2a71a42 (diff) | |
| download | postgresql-9c9936587c6a9aeb8b425a499cf73e5e7af38ddd.tar.gz postgresql-9c9936587c6a9aeb8b425a499cf73e5e7af38ddd.zip | |
Implement COMMIT_SIBLINGS parameter to allow pre-commit delay to occur
only if at least N other backends currently have open transactions. This
is not a great deal of intelligence about whether a delay might be
profitable ... but it beats no intelligence at all. Note that the default
COMMIT_DELAY is still zero --- this new code does nothing unless that
setting is changed.
Also, mark ENABLEFSYNC as a system-wide setting. It's no longer safe to
allow that to be set per-backend, since we may be relying on some other
backend's fsync to have synced the WAL log.
Diffstat (limited to 'src/backend/access/transam/xlog.c')
| -rw-r--r-- | src/backend/access/transam/xlog.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fbc4223034a..fc861aba123 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Header: /cvsroot/pgsql/src/backend/access/transam/xlog.c,v 1.54 2001/02/18 04:39:42 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/access/transam/xlog.c,v 1.55 2001/02/26 00:50:07 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -2096,8 +2096,6 @@ ShutdownXLOG() elog(LOG, "database system is shut down"); } -extern XLogRecPtr GetUndoRecPtr(void); - void CreateCheckPoint(bool shutdown) { |