database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-08-27 07:42:10 +03:00
Code Activity

Change the logic to decide when to delete old WAL segments, so that it

Browse Source 
doesn't take into account how far the WAL senders are. This way a hung
WAL sender doesn't prevent old WAL segments from being recycled/removed
in the primary, ultimately causing the disk to fill up. Instead add
standby_keep_segments setting to control how many old WAL segments are
kept in the primary. This also makes it more reliable to use streaming
replication without WAL archiving, assuming that you set
standby_keep_segments high enough.
This commit is contained in:
Heikki Linnakangas
2010-04-12 09:52:29 +00:00
parent 93f35f0955
commit e57cd7f0a1
7 changed files with 174 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/include/access/xlog.h
View File

@@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/access/xlog.h,v 1.105 2010/04/01 00:43:29 rhaas Exp $
* $PostgreSQL: pgsql/src/include/access/xlog.h,v 1.106 2010/04/12 09:52:29 heikki Exp $
*/
#ifndef XLOG_H
#define XLOG_H
@@ -187,6 +187,7 @@ extern XLogRecPtr XactLastRecEnd;
/* these variables are GUC parameters related to XLOG */
extern int CheckPointSegments;
extern int StandbySegments;
extern int XLOGbuffers;
extern bool XLogArchiveMode;
extern char *XLogArchiveCommand;
@@ -267,6 +268,7 @@ extern int XLogFileInit(uint32 log, uint32 seg,
extern int XLogFileOpen(uint32 log, uint32 seg);
extern void XLogGetLastRemoved(uint32 *log, uint32 *seg);
extern void XLogSetAsyncCommitLSN(XLogRecPtr record);
extern void RestoreBkpBlocks(XLogRecPtr lsn, XLogRecord *record, bool cleanup);