Make pg_resetxlog options parsing more standard and prepare messages for
translation.
This commit is contained in:
Peter Eisentraut
parent
41a8562739
commit
6d27cfdd89
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@ -3,7 +3,7 @@
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# pg_upgrade: update a database without needing a full dump/reload cycle.
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# CAUTION: Read the manual page before trying to use this!
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# $Header: /cvsroot/pgsql/contrib/pg_upgrade/Attic/pg_upgrade,v 1.14 2002/07/03 14:38:19 momjian Exp $
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# $Header: /cvsroot/pgsql/contrib/pg_upgrade/Attic/pg_upgrade,v 1.15 2002/08/29 22:19:03 petere Exp $
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#
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# To migrate this to newer versions of PostgreSQL:
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# 1) Update the version numbers at the top of the file
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@ -461,7 +461,7 @@ fi
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# Set checkpoint location of new database
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pg_resetxlog -l "$LOG_ID" "$SEG_ID" "$PGDATA"
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pg_resetxlog -l "$LOG_ID","$SEG_ID" "$PGDATA"
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if [ "$?" -ne 0 ]
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then echo "Unable to set new log file/segment id. Exiting." 1>&2
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exit 1
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@ -1,5 +1,5 @@
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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/pg_resetxlog.sgml,v 1.4 2002/08/17 20:24:51 tgl Exp $
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/pg_resetxlog.sgml,v 1.5 2002/08/29 22:19:03 petere Exp $
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PostgreSQL documentation
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-->
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@ -21,7 +21,7 @@ PostgreSQL documentation
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<arg> -f </arg>
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<arg> -n </arg>
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<arg> -x <replaceable class="parameter">xid</replaceable> </arg>
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<arg> -l <replaceable class="parameter">fileid</replaceable> <replaceable class="parameter">seg</replaceable> </arg>
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<arg> -l <replaceable class="parameter">fileid</replaceable>,<replaceable class="parameter">seg</replaceable> </arg>
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<arg choice="plain"><replaceable>datadir</replaceable></arg>
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</cmdsynopsis>
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</refsynopsisdiv>
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@ -0,0 +1,5 @@
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# $Header: /cvsroot/pgsql/src/bin/pg_resetxlog/nls.mk,v 1.1 2002/08/29 22:19:03 petere Exp $
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CATALOG_NAME := pg_resetxlog
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AVAIL_LANGUAGES :=
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GETTEXT_FILES := pg_resetxlog.c
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GETTEXT_TRIGGERS:= _
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@ -23,7 +23,7 @@
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* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Header: /cvsroot/pgsql/src/bin/pg_resetxlog/pg_resetxlog.c,v 1.2 2002/08/17 15:12:07 momjian Exp $
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* $Header: /cvsroot/pgsql/src/bin/pg_resetxlog/pg_resetxlog.c,v 1.3 2002/08/29 22:19:03 petere Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -36,9 +36,7 @@
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <dirent.h>
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#ifdef USE_LOCALE
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#include <locale.h>
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#endif
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#include "access/xlog.h"
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#include "catalog/catversion.h"
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@ -65,8 +63,8 @@
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/******************** end of stuff copied from xlog.c ********************/
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#define _(x) gettext((x))
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static char *DataDir; /* locations of important stuff */
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static char XLogDir[MAXPGPATH];
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static char ControlFilePath[MAXPGPATH];
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@ -74,6 +72,182 @@ static ControlFileData ControlFile; /* pg_control values */
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static uint32 newXlogId,
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newXlogSeg; /* ID/Segment of new XLOG segment */
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static bool guessed = false; /* T if we had to guess at any values */
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static char *progname;
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static bool ReadControlFile(void);
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static void GuessControlValues(void);
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static void PrintControlValues(bool guessed);
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static void RewriteControlFile(void);
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static void KillExistingXLOG(void);
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static void WriteEmptyXLOG(void);
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static void usage(void);
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int
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main(int argc, char *argv[])
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{
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int c;
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bool force = false;
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bool noupdate = false;
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TransactionId set_xid = 0;
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uint32 minXlogId = 0,
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minXlogSeg = 0;
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char *DataDir;
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int fd;
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char path[MAXPGPATH];
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setlocale(LC_ALL, "");
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#ifdef ENABLE_NLS
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bindtextdomain("pg_resetxlog", LOCALEDIR);
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textdomain("pg_resetxlog");
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#endif
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if (!strrchr(argv[0], '/'))
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progname = argv[0];
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else
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progname = strrchr(argv[0], '/') + 1;
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if (argc > 1)
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{
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if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
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{
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usage();
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exit(0);
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}
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if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
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{
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puts("pg_resetxlog (PostgreSQL) " PG_VERSION);
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exit(0);
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}
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}
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while ((c = getopt(argc, argv, "fl:nx:")) != -1)
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{
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switch (c)
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{
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case 'f':
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force = true;
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break;
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case 'n':
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noupdate = true;
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break;
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case 'x':
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set_xid = strtoul(optarg, NULL, 0);
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if (set_xid == 0)
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{
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fprintf(stderr, _("%s: transaction ID (-x) must not be 0\n"), progname);
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exit(1);
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}
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break;
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case 'l':
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if (sscanf(optarg, "%u,%u", &minXlogId, &minXlogSeg) != 2)
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{
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fprintf(stderr, _("%s: invalid argument for -l option\n"), progname);
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fprintf(stderr, _("Try '%s --help' for more information.\n"), progname);
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exit(1);
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}
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break;
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default:
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fprintf(stderr, _("Try '%s --help' for more information.\n"), progname);
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exit(1);
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}
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}
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if (optind == argc)
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{
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fprintf(stderr, _("%s: no data directory specified\n"), progname);
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fprintf(stderr, _("Try '%s --help' for more information.\n"), progname);
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exit(1);
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}
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DataDir = argv[optind];
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snprintf(XLogDir, MAXPGPATH, "%s/pg_xlog", DataDir);
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snprintf(ControlFilePath, MAXPGPATH, "%s/global/pg_control", DataDir);
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/*
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* Check for a postmaster lock file --- if there is one, refuse to
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* proceed, on grounds we might be interfering with a live
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* installation.
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*/
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snprintf(path, MAXPGPATH, "%s/postmaster.pid", DataDir);
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if ((fd = open(path, O_RDONLY)) < 0)
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{
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if (errno != ENOENT)
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{
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fprintf(stderr, _("%s: could not open %s for reading: %s\n"), progname, path, strerror(errno));
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exit(1);
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}
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}
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else
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{
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fprintf(stderr, _("%s: lock file %s exists\n"
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"Is a server running? If not, delete the lock file and try again.\n"),
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progname, path);
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exit(1);
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}
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/*
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* Attempt to read the existing pg_control file
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*/
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if (!ReadControlFile())
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GuessControlValues();
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/*
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* If we had to guess anything, and -f was not given, just print the
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* guessed values and exit. Also print if -n is given.
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*/
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if ((guessed && !force) || noupdate)
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{
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PrintControlValues(guessed);
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if (!noupdate)
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{
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printf(_("\nIf these values seem acceptable, use -f to force reset.\n"));
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exit(1);
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}
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else
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exit(0);
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}
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/*
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* Don't reset from a dirty pg_control without -f, either.
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*/
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if (ControlFile.state != DB_SHUTDOWNED && !force)
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{
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printf(_("The database server was not shut down cleanly.\n"
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"Resetting the transaction log may cause data to be lost.\n"
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"If you want to proceed anyway, use -f to force reset.\n"));
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exit(1);
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}
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/*
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* Else, do the dirty deed.
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*
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* First adjust fields if required by switches.
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*/
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if (set_xid != 0)
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ControlFile.checkPointCopy.nextXid = set_xid;
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if (minXlogId > ControlFile.logId ||
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(minXlogId == ControlFile.logId && minXlogSeg > ControlFile.logSeg))
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{
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ControlFile.logId = minXlogId;
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ControlFile.logSeg = minXlogSeg;
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}
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RewriteControlFile();
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KillExistingXLOG();
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WriteEmptyXLOG();
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printf(_("Transaction log reset\n"));
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return 0;
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}
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/*
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@ -97,11 +271,13 @@ ReadControlFile(void)
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* odds are we've been handed a bad DataDir path, so give up. User
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* can do "touch pg_control" to force us to proceed.
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*/
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perror("Failed to open $PGDATA/global/pg_control for reading");
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fprintf(stderr, _("%s: could not open %s for reading: %s\n"),
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progname, ControlFilePath, strerror(errno));
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if (errno == ENOENT)
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fprintf(stderr, "If you're sure the PGDATA path is correct, do\n"
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" touch %s\n"
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"and try again.\n", ControlFilePath);
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fprintf(stderr, _("If you are sure the data directory path is correct, do\n"
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" touch %s\n"
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"and try again.\n"),
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ControlFilePath);
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exit(1);
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}
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@ -111,7 +287,8 @@ ReadControlFile(void)
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len = read(fd, buffer, BLCKSZ);
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if (len < 0)
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{
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perror("Failed to read $PGDATA/global/pg_control");
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fprintf(stderr, _("%s: could not read %s: %s\n"),
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progname, ControlFilePath, strerror(errno));
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exit(1);
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}
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close(fd);
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@ -133,7 +310,8 @@ ReadControlFile(void)
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return true;
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}
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fprintf(stderr, "pg_control exists but has invalid CRC; proceed with caution.\n");
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fprintf(stderr, _("%s: pg_control exists but has invalid CRC; proceed with caution\n"),
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progname);
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/* We will use the data anyway, but treat it as guessed. */
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memcpy(&ControlFile, buffer, sizeof(ControlFile));
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guessed = true;
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@ -141,7 +319,8 @@ ReadControlFile(void)
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}
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/* Looks like it's a mess. */
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fprintf(stderr, "pg_control exists but is broken or unknown version; ignoring it.\n");
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fprintf(stderr, _("%s: pg_control exists but is broken or unknown version; ignoring it\n"),
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progname);
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return false;
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}
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@ -152,9 +331,7 @@ ReadControlFile(void)
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static void
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GuessControlValues(void)
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{
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#ifdef USE_LOCALE
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char *localeptr;
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#endif
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/*
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* Set up a completely default set of pg_control values.
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@ -181,25 +358,20 @@ GuessControlValues(void)
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ControlFile.blcksz = BLCKSZ;
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ControlFile.relseg_size = RELSEG_SIZE;
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#ifdef USE_LOCALE
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localeptr = setlocale(LC_COLLATE, "");
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if (!localeptr)
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{
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fprintf(stderr, "Invalid LC_COLLATE setting\n");
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fprintf(stderr, _("%s: invalid LC_COLLATE setting\n"), progname);
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exit(1);
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}
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StrNCpy(ControlFile.lc_collate, localeptr, LOCALE_NAME_BUFLEN);
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localeptr = setlocale(LC_CTYPE, "");
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if (!localeptr)
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{
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fprintf(stderr, "Invalid LC_CTYPE setting\n");
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fprintf(stderr, _("%s: invalid LC_CTYPE setting\n"), progname);
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exit(1);
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}
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StrNCpy(ControlFile.lc_ctype, localeptr, LOCALE_NAME_BUFLEN);
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#else
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strcpy(ControlFile.lc_collate, "C");
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strcpy(ControlFile.lc_ctype, "C");
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#endif
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/*
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* XXX eventually, should try to grovel through old XLOG to develop
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@ -217,31 +389,22 @@ GuessControlValues(void)
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static void
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PrintControlValues(bool guessed)
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{
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printf("%spg_control values:\n\n"
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"pg_control version number: %u\n"
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"Catalog version number: %u\n"
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"Current log file id: %u\n"
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"Next log file segment: %u\n"
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"Latest checkpoint's StartUpID: %u\n"
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"Latest checkpoint's NextXID: %u\n"
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"Latest checkpoint's NextOID: %u\n"
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"Database block size: %u\n"
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"Blocks per segment of large relation: %u\n"
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"LC_COLLATE: %s\n"
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"LC_CTYPE: %s\n",
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if (guessed)
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printf(_("Guessed pg_control values:\n\n"));
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else
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printf(_("pg_control values:\n\n"));
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(guessed ? "Guessed-at " : ""),
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ControlFile.pg_control_version,
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ControlFile.catalog_version_no,
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ControlFile.logId,
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ControlFile.logSeg,
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ControlFile.checkPointCopy.ThisStartUpID,
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ControlFile.checkPointCopy.nextXid,
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ControlFile.checkPointCopy.nextOid,
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ControlFile.blcksz,
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ControlFile.relseg_size,
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ControlFile.lc_collate,
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ControlFile.lc_ctype);
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printf(_("pg_control version number: %u\n"), ControlFile.pg_control_version);
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printf(_("Catalog version number: %u\n"), ControlFile.catalog_version_no);
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printf(_("Current log file ID: %u\n"), ControlFile.logId);
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printf(_("Next log file segment: %u\n"), ControlFile.logSeg);
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printf(_("Latest checkpoint's StartUpID: %u\n"), ControlFile.checkPointCopy.ThisStartUpID);
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printf(_("Latest checkpoint's NextXID: %u\n"), ControlFile.checkPointCopy.nextXid);
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printf(_("Latest checkpoint's NextOID: %u\n"), ControlFile.checkPointCopy.nextOid);
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printf(_("Database block size: %u\n"), ControlFile.blcksz);
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printf(_("Blocks per segment of large relation: %u\n"), ControlFile.relseg_size);
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printf(_("LC_COLLATE: %s\n"), ControlFile.lc_collate);
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printf(_("LC_CTYPE: %s\n"), ControlFile.lc_ctype);
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}
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@ -293,7 +456,9 @@ RewriteControlFile(void)
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*/
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if (sizeof(ControlFileData) > BLCKSZ)
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{
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fprintf(stderr, "sizeof(ControlFileData) is too large ... fix xlog.c\n");
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fprintf(stderr,
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_("%s: internal error -- sizeof(ControlFileData) is too large ... fix xlog.c\n"),
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progname);
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exit(1);
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}
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@ -305,7 +470,8 @@ RewriteControlFile(void)
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fd = open(ControlFilePath, O_RDWR | O_CREAT | O_EXCL | PG_BINARY, S_IRUSR | S_IWUSR);
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if (fd < 0)
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{
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perror("RewriteControlFile failed to create pg_control file");
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fprintf(stderr, _("%s: could not create pg_control file: %s\n"),
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progname, strerror(errno));
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exit(1);
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}
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@ -315,13 +481,14 @@ RewriteControlFile(void)
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/* if write didn't set errno, assume problem is no disk space */
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if (errno == 0)
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errno = ENOSPC;
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perror("RewriteControlFile failed to write pg_control file");
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fprintf(stderr, _("%s: could not write pg_control file: %s\n"),
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progname, strerror(errno));
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exit(1);
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}
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if (fsync(fd) != 0)
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{
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perror("fsync");
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fprintf(stderr, _("%s: fsync error: %s\n"), progname, strerror(errno));
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exit(1);
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}
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@ -342,7 +509,8 @@ KillExistingXLOG(void)
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xldir = opendir(XLogDir);
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if (xldir == NULL)
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{
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perror("KillExistingXLOG: cannot open $PGDATA/pg_xlog directory");
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fprintf(stderr, _("%s: could not open directory %s: %s\n"),
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progname, XLogDir, strerror(errno));
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exit(1);
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}
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@ -355,15 +523,18 @@ KillExistingXLOG(void)
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snprintf(path, MAXPGPATH, "%s/%s", XLogDir, xlde->d_name);
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if (unlink(path) < 0)
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{
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perror(path);
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fprintf(stderr, _("%s: could not delete file %s: %s\n"),
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progname, path, strerror(errno));
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exit(1);
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}
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}
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errno = 0;
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}
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if (errno)
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{
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perror("KillExistingXLOG: cannot read $PGDATA/pg_xlog directory");
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fprintf(stderr, _("%s: could not read from directory %s: %s\n"),
|
||||
progname, XLogDir, strerror(errno));
|
||||
exit(1);
|
||||
}
|
||||
closedir(xldir);
|
||||
|
|
@ -425,7 +596,8 @@ WriteEmptyXLOG(void)
|
|||
S_IRUSR | S_IWUSR);
|
||||
if (fd < 0)
|
||||
{
|
||||
perror(path);
|
||||
fprintf(stderr, _("%s: could not open %s: %s\n"),
|
||||
progname, path, strerror(errno));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
|
|
@ -435,7 +607,8 @@ WriteEmptyXLOG(void)
|
|||
/* if write didn't set errno, assume problem is no disk space */
|
||||
if (errno == 0)
|
||||
errno = ENOSPC;
|
||||
perror("WriteEmptyXLOG: failed to write xlog file");
|
||||
fprintf(stderr, _("%s: could not write %s: %s\n"),
|
||||
progname, path, strerror(errno));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
|
|
@ -448,14 +621,15 @@ WriteEmptyXLOG(void)
|
|||
{
|
||||
if (errno == 0)
|
||||
errno = ENOSPC;
|
||||
perror("WriteEmptyXLOG: failed to write xlog file");
|
||||
fprintf(stderr, _("%s: could not write %s: %s\n"),
|
||||
progname, path, strerror(errno));
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
if (fsync(fd) != 0)
|
||||
{
|
||||
perror("fsync");
|
||||
fprintf(stderr, _("%s: fsync error: %s\n"), progname, strerror(errno));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
|
|
@ -466,146 +640,12 @@ WriteEmptyXLOG(void)
|
|||
static void
|
||||
usage(void)
|
||||
{
|
||||
fprintf(stderr, "Usage: pg_resetxlog [-f] [-n] [-x xid] [ -l fileid seg ] PGDataDirectory\n"
|
||||
" -f\t\tforce update to be done\n"
|
||||
" -n\t\tno update, just show extracted pg_control values (for testing)\n"
|
||||
" -x xid\tset next transaction ID\n"
|
||||
" -l fileid seg\tforce minimum WAL starting location for new xlog\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
main(int argc, char **argv)
|
||||
{
|
||||
int argn;
|
||||
bool force = false;
|
||||
bool noupdate = false;
|
||||
TransactionId set_xid = 0;
|
||||
uint32 minXlogId = 0,
|
||||
minXlogSeg = 0;
|
||||
int fd;
|
||||
char path[MAXPGPATH];
|
||||
|
||||
for (argn = 1; argn < argc; argn++)
|
||||
{
|
||||
if (argv[argn][0] != '-')
|
||||
break; /* end of switches */
|
||||
if (strcmp(argv[argn], "-f") == 0)
|
||||
force = true;
|
||||
else if (strcmp(argv[argn], "-n") == 0)
|
||||
noupdate = true;
|
||||
else if (strcmp(argv[argn], "-x") == 0)
|
||||
{
|
||||
argn++;
|
||||
if (argn == argc)
|
||||
usage();
|
||||
set_xid = strtoul(argv[argn], NULL, 0);
|
||||
if (set_xid == 0)
|
||||
{
|
||||
fprintf(stderr, "XID can not be 0.\n");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
else if (strcmp(argv[argn], "-l") == 0)
|
||||
{
|
||||
argn++;
|
||||
if (argn == argc)
|
||||
usage();
|
||||
minXlogId = strtoul(argv[argn], NULL, 0);
|
||||
argn++;
|
||||
if (argn == argc)
|
||||
usage();
|
||||
minXlogSeg = strtoul(argv[argn], NULL, 0);
|
||||
}
|
||||
else
|
||||
usage();
|
||||
}
|
||||
|
||||
if (argn != argc - 1) /* one required non-switch argument */
|
||||
usage();
|
||||
|
||||
DataDir = argv[argn++];
|
||||
|
||||
snprintf(XLogDir, MAXPGPATH, "%s/pg_xlog", DataDir);
|
||||
|
||||
snprintf(ControlFilePath, MAXPGPATH, "%s/global/pg_control", DataDir);
|
||||
|
||||
/*
|
||||
* Check for a postmaster lock file --- if there is one, refuse to
|
||||
* proceed, on grounds we might be interfering with a live
|
||||
* installation.
|
||||
*/
|
||||
snprintf(path, MAXPGPATH, "%s/postmaster.pid", DataDir);
|
||||
|
||||
if ((fd = open(path, O_RDONLY)) < 0)
|
||||
{
|
||||
if (errno != ENOENT)
|
||||
{
|
||||
perror("Failed to open $PGDATA/postmaster.pid for reading");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
fprintf(stderr, "Lock file '%s' exists --- is a postmaster running?\n"
|
||||
"If not, delete the lock file and try again.\n",
|
||||
path);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/*
|
||||
* Attempt to read the existing pg_control file
|
||||
*/
|
||||
if (!ReadControlFile())
|
||||
GuessControlValues();
|
||||
|
||||
/*
|
||||
* If we had to guess anything, and -f was not given, just print the
|
||||
* guessed values and exit. Also print if -n is given.
|
||||
*/
|
||||
if ((guessed && !force) || noupdate)
|
||||
{
|
||||
PrintControlValues(guessed);
|
||||
if (!noupdate)
|
||||
{
|
||||
printf("\nIf these values seem acceptable, use -f to force reset.\n");
|
||||
exit(1);
|
||||
}
|
||||
else
|
||||
exit(0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Don't reset from a dirty pg_control without -f, either.
|
||||
*/
|
||||
if (ControlFile.state != DB_SHUTDOWNED && !force)
|
||||
{
|
||||
printf("The database was not shut down cleanly.\n"
|
||||
"Resetting the xlog may cause data to be lost!\n"
|
||||
"If you want to proceed anyway, use -f to force reset.\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/*
|
||||
* Else, do the dirty deed.
|
||||
*
|
||||
* First adjust fields if required by switches.
|
||||
*/
|
||||
if (set_xid != 0)
|
||||
ControlFile.checkPointCopy.nextXid = set_xid;
|
||||
|
||||
if (minXlogId > ControlFile.logId ||
|
||||
(minXlogId == ControlFile.logId && minXlogSeg > ControlFile.logSeg))
|
||||
{
|
||||
ControlFile.logId = minXlogId;
|
||||
ControlFile.logSeg = minXlogSeg;
|
||||
}
|
||||
|
||||
RewriteControlFile();
|
||||
KillExistingXLOG();
|
||||
WriteEmptyXLOG();
|
||||
|
||||
printf("XLOG reset.\n");
|
||||
return 0;
|
||||
printf(_("%s resets the PostgreSQL transaction log.\n\n"), progname);
|
||||
printf(_("Usage:\n %s [OPTIONS] DATADIR\n\n"), progname);
|
||||
printf(_("Options:\n"));
|
||||
printf(_(" -f force update to be done\n"));
|
||||
printf(_(" -l FILEID,SEG force minimum WAL starting location for new transaction log\n"));
|
||||
printf(_(" -n no update, just show extracted control values (for testing)\n"));
|
||||
printf(_(" -x XID set next transaction ID\n"));
|
||||
printf(_("\nReport bugs to <pgsql-bugs@postgresql.org>.\n"));
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue