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Code

Remove undo information from pg_controldata --- never used.

Browse Source 
Florian G. Pflug
This commit is contained in:
Bruce Momjian 2007-03-03 20:02:27 +00:00
parent 0763a56501
commit ae35867a39
5 changed files with 11 additions and 25 deletions
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16
src/backend/access/transam/xlog.c
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.264 2007/02/14 05:00:40 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.265 2007/03/03 20:02:26 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -4039,7 +4039,6 @@ BootStrapXLOG(void)
/* Set up information for the initial checkpoint record */
checkPoint.redo.xlogid = 0;
checkPoint.redo.xrecoff = SizeOfXLogLongPHD;
checkPoint.undo = checkPoint.redo;
checkPoint.ThisTimeLineID = ThisTimeLineID;
checkPoint.nextXidEpoch = 0;
checkPoint.nextXid = FirstNormalTransactionId;
@ -4698,9 +4697,8 @@ StartupXLOG(void)
wasShutdown = (record->xl_info == XLOG_CHECKPOINT_SHUTDOWN);
ereport(LOG,
(errmsg("redo record is at %X/%X; undo record is at %X/%X; shutdown %s",
(errmsg("redo record is at %X/%X; shutdown %s",
checkPoint.redo.xlogid, checkPoint.redo.xrecoff,
checkPoint.undo.xlogid, checkPoint.undo.xrecoff,
wasShutdown ? "TRUE" : "FALSE")));
ereport(LOG,
(errmsg("next transaction ID: %u/%u; next OID: %u",
@ -4730,20 +4728,17 @@ StartupXLOG(void)
if (XLByteLT(RecPtr, checkPoint.redo))
ereport(PANIC,
(errmsg("invalid redo in checkpoint record")));
if (checkPoint.undo.xrecoff == 0)
checkPoint.undo = RecPtr;
/*
* Check whether we need to force recovery from WAL. If it appears to
* have been a clean shutdown and we did not have a recovery.conf file,
* then assume no recovery needed.
*/
if (XLByteLT(checkPoint.undo, RecPtr) ||
XLByteLT(checkPoint.redo, RecPtr))
if (XLByteLT(checkPoint.redo, RecPtr))
{
if (wasShutdown)
ereport(PANIC,
(errmsg("invalid redo/undo record in shutdown checkpoint")));
(errmsg("invalid redo record in shutdown checkpoint")));
InRecovery = true;
}
else if (ControlFile->state != DB_SHUTDOWNED)
@ -5850,10 +5845,9 @@ xlog_desc(StringInfo buf, uint8 xl_info, char *rec)
{
CheckPoint *checkpoint = (CheckPoint *) rec;
appendStringInfo(buf, "checkpoint: redo %X/%X; undo %X/%X; "
appendStringInfo(buf, "checkpoint: redo %X/%X; "
"tli %u; xid %u/%u; oid %u; multi %u; offset %u; %s",
checkpoint->redo.xlogid, checkpoint->redo.xrecoff,
checkpoint->undo.xlogid, checkpoint->undo.xrecoff,
checkpoint->ThisTimeLineID,
checkpoint->nextXidEpoch, checkpoint->nextXid,
checkpoint->nextOid,

5
src/bin/pg_controldata/pg_controldata.c
View File

@ -6,7 +6,7 @@
* copyright (c) Oliver Elphick <olly@lfix.co.uk>, 2001;
* licence: BSD
*
* $PostgreSQL: pgsql/src/bin/pg_controldata/pg_controldata.c,v 1.32 2006/12/08 19:50:53 tgl Exp $
* $PostgreSQL: pgsql/src/bin/pg_controldata/pg_controldata.c,v 1.33 2007/03/03 20:02:27 momjian Exp $
*/
#include "postgres.h"
@ -168,9 +168,6 @@ main(int argc, char *argv[])
printf(_("Latest checkpoint's REDO location: %X/%X\n"),
ControlFile.checkPointCopy.redo.xlogid,
ControlFile.checkPointCopy.redo.xrecoff);
printf(_("Latest checkpoint's UNDO location: %X/%X\n"),
ControlFile.checkPointCopy.undo.xlogid,
ControlFile.checkPointCopy.undo.xrecoff);
printf(_("Latest checkpoint's TimeLineID: %u\n"),
ControlFile.checkPointCopy.ThisTimeLineID);
printf(_("Latest checkpoint's NextXID: %u/%u\n"),

4
src/bin/pg_resetxlog/pg_resetxlog.c
View File

@ -23,7 +23,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/bin/pg_resetxlog/pg_resetxlog.c,v 1.57 2007/02/10 14:58:55 petere Exp $
* $PostgreSQL: pgsql/src/bin/pg_resetxlog/pg_resetxlog.c,v 1.58 2007/03/03 20:02:27 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -464,7 +464,6 @@ GuessControlValues(void)
ControlFile.checkPointCopy.redo.xlogid = 0;
ControlFile.checkPointCopy.redo.xrecoff = SizeOfXLogLongPHD;
ControlFile.checkPointCopy.undo = ControlFile.checkPointCopy.redo;
ControlFile.checkPointCopy.ThisTimeLineID = 1;
ControlFile.checkPointCopy.nextXidEpoch = 0;
ControlFile.checkPointCopy.nextXid = (TransactionId) 514; /* XXX */
@ -600,7 +599,6 @@ RewriteControlFile(void)
ControlFile.checkPointCopy.redo.xlogid = newXlogId;
ControlFile.checkPointCopy.redo.xrecoff =
newXlogSeg * XLogSegSize + SizeOfXLogLongPHD;
ControlFile.checkPointCopy.undo = ControlFile.checkPointCopy.redo;
ControlFile.checkPointCopy.time = time(NULL);
ControlFile.state = DB_SHUTDOWNED;

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

@ -11,7 +11,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/access/xlog_internal.h,v 1.18 2007/01/05 22:19:51 momjian Exp $
* $PostgreSQL: pgsql/src/include/access/xlog_internal.h,v 1.19 2007/03/03 20:02:27 momjian Exp $
*/
#ifndef XLOG_INTERNAL_H
#define XLOG_INTERNAL_H
@ -71,7 +71,7 @@ typedef struct XLogContRecord
/*
* Each page of XLOG file has a header like this:
*/
#define XLOG_PAGE_MAGIC 0xD05E /* can be used as WAL version indicator */
#define XLOG_PAGE_MAGIC 0xD05F /* can be used as WAL version indicator */
typedef struct XLogPageHeaderData
{

7
src/include/catalog/pg_control.h
View File

@ -8,7 +8,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/catalog/pg_control.h,v 1.35 2007/01/05 22:19:52 momjian Exp $
* $PostgreSQL: pgsql/src/include/catalog/pg_control.h,v 1.36 2007/03/03 20:02:27 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -22,7 +22,7 @@
/* Version identifier for this pg_control format */
#define PG_CONTROL_VERSION 831
#define PG_CONTROL_VERSION 832
/*
* Body of CheckPoint XLOG records. This is declared here because we keep
@ -32,9 +32,6 @@ typedef struct CheckPoint
{
XLogRecPtr redo; /* next RecPtr available when we began to
* create CheckPoint (i.e. REDO start point) */
XLogRecPtr undo; /* first record of oldest in-progress
* transaction when we started (i.e. UNDO end
* point) */
TimeLineID ThisTimeLineID; /* current TLI */
uint32 nextXidEpoch; /* higher-order bits of nextXid */
TransactionId nextXid; /* next free XID */