* step 2 ...
*
*
- * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/bin/pg_resetxlog/pg_resetxlog.c
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
-#ifdef HAVE_GETOPT_H
-#include <getopt.h>
-#endif
#include "access/transam.h"
#include "access/tuptoaster.h"
#include "catalog/catversion.h"
#include "catalog/pg_control.h"
#include "common/fe_memutils.h"
-
-extern int optind;
-extern char *optarg;
+#include "pg_getopt.h"
static ControlFileData ControlFile; /* pg_control values */
static XLogSegNo newXlogSegNo; /* new XLOG segment # */
static bool guessed = false; /* T if we had to guess at any values */
static const char *progname;
+static uint32 set_xid_epoch = (uint32) -1;
+static TransactionId set_xid = 0;
+static Oid set_oid = 0;
+static MultiXactId set_mxid = 0;
+static MultiXactOffset set_mxoff = (MultiXactOffset) -1;
+static uint32 minXlogTli = 0;
+static XLogSegNo minXlogSegNo = 0;
static bool ReadControlFile(void);
static void GuessControlValues(void);
static void PrintControlValues(bool guessed);
+static void PrintNewControlValues(void);
static void RewriteControlFile(void);
static void FindEndOfXLOG(void);
static void KillExistingXLOG(void);
int c;
bool force = false;
bool noupdate = false;
- uint32 set_xid_epoch = (uint32) -1;
- TransactionId set_xid = 0;
- Oid set_oid = 0;
- MultiXactId set_mxid = 0;
MultiXactId set_oldestmxid = 0;
- MultiXactOffset set_mxoff = (MultiXactOffset) -1;
- uint32 minXlogTli = 0;
- XLogSegNo minXlogSegNo = 0;
char *endptr;
char *endptr2;
char *DataDir;
fprintf(stderr, _("%s: multitransaction ID (-m) must not be 0\n"), progname);
exit(1);
}
+
/*
* XXX It'd be nice to have more sanity checks here, e.g. so
* that oldest is not wrapped around w.r.t. nextMulti.
*/
FindEndOfXLOG();
+ /*
+ * If we're not going to proceed with the reset, print the current control
+ * file parameters.
+ */
+ if ((guessed && !force) || noupdate)
+ PrintControlValues(guessed);
+
/*
* Adjust fields if required by switches. (Do this now so that printout,
* if any, includes these values.)
*/
if ((guessed && !force) || noupdate)
{
- PrintControlValues(guessed);
+ PrintNewControlValues();
if (!noupdate)
{
printf(_("\nIf these values seem acceptable, use -f to force reset.\n"));
/* minRecoveryPoint, backupStartPoint and backupEndPoint can be left zero */
ControlFile.wal_level = WAL_LEVEL_MINIMAL;
+ ControlFile.wal_log_hints = false;
ControlFile.MaxConnections = 100;
+ ControlFile.max_worker_processes = 8;
ControlFile.max_prepared_xacts = 0;
ControlFile.max_locks_per_xact = 64;
PrintControlValues(bool guessed)
{
char sysident_str[32];
- char fname[MAXFNAMELEN];
if (guessed)
printf(_("Guessed pg_control values:\n\n"));
else
- printf(_("pg_control values:\n\n"));
+ printf(_("Current pg_control values:\n\n"));
/*
* Format system_identifier separately to keep platform-dependent format
snprintf(sysident_str, sizeof(sysident_str), UINT64_FORMAT,
ControlFile.system_identifier);
- XLogFileName(fname, ControlFile.checkPointCopy.ThisTimeLineID, newXlogSegNo);
-
- printf(_("First log segment after reset: %s\n"),
- fname);
printf(_("pg_control version number: %u\n"),
ControlFile.pg_control_version);
printf(_("Catalog version number: %u\n"),
(ControlFile.float4ByVal ? _("by value") : _("by reference")));
printf(_("Float8 argument passing: %s\n"),
(ControlFile.float8ByVal ? _("by value") : _("by reference")));
- printf(_("Data page checksums: %s\n"),
- (ControlFile.data_checksums ? _("enabled") : _("disabled")));
+ printf(_("Data page checksum version: %u\n"),
+ ControlFile.data_checksum_version);
+}
+
+
+/*
+ * Print the values to be changed.
+ */
+static void
+PrintNewControlValues()
+{
+ char fname[MAXFNAMELEN];
+
+ /* This will be always printed in order to keep format same. */
+ printf(_("\n\nValues to be changed:\n\n"));
+
+ XLogFileName(fname, ControlFile.checkPointCopy.ThisTimeLineID, newXlogSegNo);
+ printf(_("First log segment after reset: %s\n"), fname);
+
+ if (set_mxid != 0)
+ {
+ printf(_("NextMultiXactId: %u\n"),
+ ControlFile.checkPointCopy.nextMulti);
+ printf(_("OldestMultiXid: %u\n"),
+ ControlFile.checkPointCopy.oldestMulti);
+ printf(_("OldestMulti's DB: %u\n"),
+ ControlFile.checkPointCopy.oldestMultiDB);
+ }
+
+ if (set_mxoff != -1)
+ {
+ printf(_("NextMultiOffset: %u\n"),
+ ControlFile.checkPointCopy.nextMultiOffset);
+ }
+
+ if (set_oid != 0)
+ {
+ printf(_("NextOID: %u\n"),
+ ControlFile.checkPointCopy.nextOid);
+ }
+
+ if (set_xid != 0)
+ {
+ printf(_("NextXID: %u\n"),
+ ControlFile.checkPointCopy.nextXid);
+ printf(_("OldestXID: %u\n"),
+ ControlFile.checkPointCopy.oldestXid);
+ printf(_("OldestXID's DB: %u\n"),
+ ControlFile.checkPointCopy.oldestXidDB);
+ }
+
+ if (set_xid_epoch != -1)
+ {
+ printf(_("NextXID Epoch: %u\n"),
+ ControlFile.checkPointCopy.nextXidEpoch);
+ }
}
* anyway at startup.
*/
ControlFile.wal_level = WAL_LEVEL_MINIMAL;
+ ControlFile.wal_log_hints = false;
ControlFile.MaxConnections = 100;
+ ControlFile.max_worker_processes = 8;
ControlFile.max_prepared_xacts = 0;
ControlFile.max_locks_per_xact = 64;
exit(1);
}
- errno = 0;
- while ((xlde = readdir(xldir)) != NULL)
+ while (errno = 0, (xlde = readdir(xldir)) != NULL)
{
if (strlen(xlde->d_name) == 24 &&
strspn(xlde->d_name, "0123456789ABCDEF") == 24)
if (segno > newXlogSegNo)
newXlogSegNo = segno;
}
- errno = 0;
}
-#ifdef WIN32
- /*
- * This fix is in mingw cvs (runtime/mingwex/dirent.c rev 1.4), but not in
- * released version
- */
+#ifdef WIN32
+ /* Bug in old Mingw dirent.c; fixed in mingw-runtime-3.2, 2003-10-10 */
if (GetLastError() == ERROR_NO_MORE_FILES)
errno = 0;
#endif
if (errno)
{
- fprintf(stderr, _("%s: could not read from directory \"%s\": %s\n"),
+ fprintf(stderr, _("%s: could not read directory \"%s\": %s\n"),
+ progname, XLOGDIR, strerror(errno));
+ exit(1);
+ }
+
+ if (closedir(xldir))
+ {
+ fprintf(stderr, _("%s: could not close directory \"%s\": %s\n"),
progname, XLOGDIR, strerror(errno));
exit(1);
}
- closedir(xldir);
/*
* Finally, convert to new xlog seg size, and advance by one to ensure we
exit(1);
}
- errno = 0;
- while ((xlde = readdir(xldir)) != NULL)
+ while (errno = 0, (xlde = readdir(xldir)) != NULL)
{
if (strlen(xlde->d_name) == 24 &&
strspn(xlde->d_name, "0123456789ABCDEF") == 24)
exit(1);
}
}
- errno = 0;
}
-#ifdef WIN32
- /*
- * This fix is in mingw cvs (runtime/mingwex/dirent.c rev 1.4), but not in
- * released version
- */
+#ifdef WIN32
+ /* Bug in old Mingw dirent.c; fixed in mingw-runtime-3.2, 2003-10-10 */
if (GetLastError() == ERROR_NO_MORE_FILES)
errno = 0;
#endif
if (errno)
{
- fprintf(stderr, _("%s: could not read from directory \"%s\": %s\n"),
+ fprintf(stderr, _("%s: could not read directory \"%s\": %s\n"),
+ progname, XLOGDIR, strerror(errno));
+ exit(1);
+ }
+
+ if (closedir(xldir))
+ {
+ fprintf(stderr, _("%s: could not close directory \"%s\": %s\n"),
progname, XLOGDIR, strerror(errno));
exit(1);
}
- closedir(xldir);
}
exit(1);
}
- errno = 0;
- while ((xlde = readdir(xldir)) != NULL)
+ while (errno = 0, (xlde = readdir(xldir)) != NULL)
{
if (strspn(xlde->d_name, "0123456789ABCDEF") == 24 &&
(strcmp(xlde->d_name + 24, ".ready") == 0 ||
exit(1);
}
}
- errno = 0;
}
-#ifdef WIN32
- /*
- * This fix is in mingw cvs (runtime/mingwex/dirent.c rev 1.4), but not in
- * released version
- */
+#ifdef WIN32
+ /* Bug in old Mingw dirent.c; fixed in mingw-runtime-3.2, 2003-10-10 */
if (GetLastError() == ERROR_NO_MORE_FILES)
errno = 0;
#endif
if (errno)
{
- fprintf(stderr, _("%s: could not read from directory \"%s\": %s\n"),
+ fprintf(stderr, _("%s: could not read directory \"%s\": %s\n"),
+ progname, ARCHSTATDIR, strerror(errno));
+ exit(1);
+ }
+
+ if (closedir(xldir))
+ {
+ fprintf(stderr, _("%s: could not close directory \"%s\": %s\n"),
progname, ARCHSTATDIR, strerror(errno));
exit(1);
}
- closedir(xldir);
}
printf(_(" -e XIDEPOCH set next transaction ID epoch\n"));
printf(_(" -f force update to be done\n"));
printf(_(" -l XLOGFILE force minimum WAL starting location for new transaction log\n"));
- printf(_(" -m XID,OLDEST set next multitransaction ID and oldest value\n"));
- printf(_(" -n no update, just show extracted control values (for testing)\n"));
+ printf(_(" -m MXID,MXID set next and oldest multitransaction ID\n"));
+ printf(_(" -n no update, just show what would be done (for testing)\n"));
printf(_(" -o OID set next OID\n"));
printf(_(" -O OFFSET set next multitransaction offset\n"));
printf(_(" -V, --version output version information, then exit\n"));
projects / postgresql / blobdiff