Add Peter's portability and option suggestions.
This commit is contained in:
Bruce Momjian
parent
ebf57dd082
commit
86beaf4fa0
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@ -1,132 +1,22 @@
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pg_upgrade
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This is a version of pg_upgrade which will migrate a 7.1 database to 7.2,
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or allow a 7.2 to 7.2 migration if you need to perform an initdb.
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Read the manual page for more information. To view it:
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PG_UPGRADE(1) PostgreSQL Client Applications PG_UPGRADE(1)
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nroff -man pg_upgrade.1 | $PAGER
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Bruce Momjian
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NNAAMMEE
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pg_upgrade - upgrade tool
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2002-01-14
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SSYYNNOOPPSSIISS
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Allows upgrading from a previous release without reloading
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data
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--
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DDEESSCCRRIIPPTTIIOONN
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ppgg__uuppggrraaddee is a utility for upgrading from a previous
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PostgreSQL release without reloading all the data. Not all
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PostgreSQL releases can use this utility. Check the
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release notes for details about your version.
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ppgg__uuppggrraaddee must be run in two stages. In phase one you
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must run ppgg__uuppggrraaddee with your old database installation in
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place. In phase two, ppgg__uuppggrraaddee must be run on a freshly
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iinniittddbb'ed current install. In both phases, the same
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ppgg__uuppggrraaddee script matching the newly installed version
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must be used.
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UUppggrraaddiinngg PPoossttggrreeSSQQLL wwiitthh ppgg__uuppggrraaddee
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1) Back up your existing data directory, preferably by
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making a complete dump with ppgg__dduummppaallll..
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2) Copy the program _p_g_s_q_l_/_c_o_n_t_r_i_b_/_p_g___u_p_g_r_a_d_e_/_p_g___u_p_g_r_a_d_e
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from the current PostgreSQL distribution somewhere into
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your path.
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3) Change your working directory to the pgsql main direc-
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tory, and type:
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$$ ppgg__uuppggrraaddee --11
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to collect information about the old database needed for
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the upgrade.
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4) Do:
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$$ mmaakkee iinnssttaallll
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to install the new binaries.
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5) Do:
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$$ ccdd ppggssqqll//ccoonnttrriibb//ppgg__rreesseettxxlloogg
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$$ mmaakkee iinnssttaallll
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to install the _p_g___r_e_s_e_t_x_l_o_g utility which is needed by
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ppgg__uuppggrraaddee.
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6) Run initdb to create a new template1 database contain-
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ing the system tables for the new release. Make sure you
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use settings similar to those used in your previous ver-
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sion.
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14 Jan 2002 PG_UPGRADE(1) 1
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PG_UPGRADE(1) PostgreSQL Client Applications PG_UPGRADE(1)
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7) Start the new _p_o_s_t_m_a_s_t_e_r_. (Note: it is critical that
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no users connect to the server until the upgrade is com-
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plete. You may wish to start the postmaster without -i or
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alter pg_hba.conf temporarily.)
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8) Change your working directory to the pgsql main direc-
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tory again, and type:
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$$ ppgg__uuppggrraaddee --22
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The program will do some checking to make sure everything
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is properly configured, and will then recreate all the
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databases and tables you had, but with no data. It will
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then physically move the data files containing non-system
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tables and indexes into the proper subdirectories.
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9) Restore your old _p_g___h_b_a_._c_o_n_f if needed to allow user
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logins.
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10) Carefully examine the contents of the upgraded
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databases. If you detect problems, you'll need to recover
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by restoring from your full ppgg__dduummppaallll backup. You can
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delete the _p_g___u_p_g_r_a_d_e___i_n_f_o_/ directory when you are satis-
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fied.
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The upgraded databases will be in an un-vacuumed state.
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You will probably want to run a _V_A_C_U_U_M _A_N_A_L_Y_Z_E before
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beginning production work.
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SSEEEE AALLSSOO
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initdb(1), postmaster(1), pg_dump(1), pg_dumpall(1), vacu-
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umdb(1)
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14 Jan 2002 PG_UPGRADE(1) 2
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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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2) Search for specific version mentions in the script and update
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accordingly.
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3) Add changes for next version.
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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 1.2 2002/01/14 22:54:44 momjian Exp $
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# $Header: /cvsroot/pgsql/contrib/pg_upgrade/Attic/pg_upgrade,v 1.3 2002/01/15 04:05:24 momjian Exp $
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#
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# NOTE: we must be sure to update the version-checking code a few dozen lines
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# below for each new PostgreSQL release.
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@ -11,7 +11,7 @@
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#set -x
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# Set this to "Y" to enable this program
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ENABLE="N"
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ENABLE="Y"
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if [ "$ENABLE" != "Y" ]
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then
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@ -29,6 +29,7 @@ CUR_VERSION="7.2"
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trap "rm -f /tmp/$$.*" 0 1 2 3 15
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BASENAME=`basename "$0`
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PHASE=""
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if [ "$#" -eq 1 ]
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@ -40,40 +41,42 @@ then
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then PHASE="2"
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shift
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elif [ "X$1" = "X-D" ]
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then DATADIR="$2"
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shift
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then PGDATA="$2"
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shift 2
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fi
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fi
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if [ "$PHASE" = "" ]
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then echo "You must run $0 in either mode 1 or mode 2." 1>&2
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echo "Usage: $0 [-D datadir] -1 | -2" 1>&2
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then echo "You must run $BASENAME in either mode 1 or mode 2." 1>&2
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echo "Usage: $BASENAME [-D datadir] -1 | -2" 1>&2
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exit 1
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fi
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if [ "$DATADIR" = "" ]
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then echo "You must set the DATADIR environment variable or specify it with -D." 1>&2
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echo "Usage: $0 [-D datadir] -1 | -2" 1>&2
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if [ "$PGDATA" = "" ]
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then echo "You must set the PGDATA environment variable or specify it with -D." 1>&2
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echo "Usage: $BASENAME [-D datadir] -1 | -2" 1>&2
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exit 1
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fi
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if [ ! -d "$DATADIR" ]
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then echo "$DATADIR does not exist.
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$0 aborted." 1>&2
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if [ ! -d "$PGDATA" ]
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then echo "$PGDATA does not exist.
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$BASENAME aborted." 1>&2
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if [ "$PHASE" -eq 2 ]
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then echo "Perhaps you didn't run initdb." 1>&2
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fi
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exit 1
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fi
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if [ "$USER" = "root" -o ! -r "$DATADIR"/PG_VERSION ]
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if [ "$USER" = "root" -o ! -r "$PGDATA"/PG_VERSION ]
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then echo "You must run this as the PostgreSQL superuser.
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$0 aborted." 1>&2
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$BASENAME aborted." 1>&2
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exit 1
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fi
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INFODIR="pg_upgrade_info"
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SAVEDATA="$INFODIR"/"`basename \"$DATADIR\"`"
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# Strip off the trailing directory name and store our data there
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# in the hope we are in the same filesystem so 'mv 'works.
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INFODIR=`dirname "$PGDATA"`/pg_upgrade_info
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SAVEDATA="$INFODIR"/data
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make_dbobjoidmap()
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{
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@ -119,35 +122,35 @@ move_objfiles()
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! -h "$SAVEDATA"/base/"$SRC_DBOID"/"$SRC_OID" ]
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then echo "Move of database $DB, OID $SRC_OID, object $OBJ failed.
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File not found; exiting" 1>&2
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exit 1
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return 1
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fi
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if [ ! -f "$DATADIR"/base/"$DST_DBOID"/"$DST_OID" -a \
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! -h "$DATADIR"/base/"$DST_DBOID"/"$DST_OID" ]
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if [ ! -f "$PGDATA"/base/"$DST_DBOID"/"$DST_OID" -a \
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! -h "$PGDATA"/base/"$DST_DBOID"/"$DST_OID" ]
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then echo "Move of database $DB, OID $DST_OID, object $OBJ failed.
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File not found; exiting" 1>&2
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exit 1
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return 1
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fi
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# Move files
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mv -f "$SAVEDATA"/base/"$SRC_DBOID"/"$SRC_OID" "$DATADIR"/base/"$DST_DBOID"/"$DST_OID"
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mv -f "$SAVEDATA"/base/"$SRC_DBOID"/"$SRC_OID" "$PGDATA"/base/"$DST_DBOID"/"$DST_OID"
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if [ "$?" -ne 0 ]
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then echo "Move of database $DB, OID $SRC_OID, object $OBJ
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to $DST_OID failed.; exiting" 1>&2
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exit 1
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return 1
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fi
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# handle table extents
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ls "$SAVEDATA"/base/"$SRC_DBOID"/"$SRC_OID".* 2>/dev/null | while read FILE
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ls "$SAVEDATA"/base/"$SRC_DBOID"/"$SRC_OID".* 2> /dev/null | while read FILE
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do
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EXT=`basename "$FILE" | sed 's/^.*\.\(.*\)$/\1/'`
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mv -f "$FILE" "$DATADIR"/base/"$DST_DBOID"/"$DST_OID"."$EXT"
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mv -f "$FILE" "$PGDATA"/base/"$DST_DBOID"/"$DST_OID"."$EXT"
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if [ "$?" -ne 0 ]
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then echo "Move of database $DB, OID $SRC_OID, object $OBJ
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to $DST_OID failed.; exiting" 1>&2
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exit 1
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return 1
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fi
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done
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}
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@ -160,44 +163,56 @@ then
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##########################
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if [ ! -d "$DATADIR"/base/1 ]
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then echo "There is no database template1 in $DATADIR/base." 1>&2
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if [ ! -d "$PGDATA"/base/1 ]
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then echo "There is no database template1 in $PGDATA/base." 1>&2
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exit 1
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fi
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# get version
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SRC_VERSION=`cat "$DATADIR"/PG_VERSION`
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SRC_VERSION=`cat "$PGDATA"/PG_VERSION`
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if [ "$SRC_VERSION" = "" ]
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then echo "$0 can not find PostgreSQL version file '$DATADIR/PG_VERSION'.
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$0 aborted." 1>&2
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then echo "$BASENAME can not find PostgreSQL version file '$PGDATA/PG_VERSION'.
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$BASENAME aborted." 1>&2
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exit 1
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fi
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if [ "$SRC_VERSION" != "$CUR_VERSION" -a \
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"$SRC_VERSION" != "$UPGRADE_VERSION" ]
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then echo
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"$0 supports versions $UPGRADE_VERSION and $CUR_VERSION only." 1>&2
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echo
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"However, your database is version $SRC_VERSION;
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$0 aborted." 1>&2
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then echo "$BASENAME supports versions $UPGRADE_VERSION and $CUR_VERSION only." 1>&2
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echo "However, your database is version $SRC_VERSION;
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$BASENAME aborted." 1>&2
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echo "You will need to dump and restore using pg_dumpall." 1>&2
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exit 1
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fi
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# Start server, if needed, so we can do some work.
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if ! pg_ctl status | head -1 | grep -q "is running"
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if ! pg_ctl status | sed -n '1p' | grep "is running" > /dev/null 2>&1
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then pg_ctl -w start
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if [ $? -ne 0 ]
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then echo "Can not start server.
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$0 aborted." 1>&2
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$BASENAME aborted." 1>&2
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exit 1
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fi
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fi
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# create directory for our data
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rm -rf "$INFODIR"
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mkdir "$INFODIR"
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chmod og-rwx "$INFODIR"
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if ! rm -rf "$INFODIR"
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then echo "Deletion of old pg_upgrade_info directory failed, $INFODIR.
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$BASENAME aborted." 1>&2
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exit 1
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fi
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if ! mkdir "$INFODIR"
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then echo "Creation of new pg_upgrade_info directory failed, $INFODIR.
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$BASENAME aborted." 1>&2
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exit 1
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fi
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if ! chmod og-rwx "$INFODIR"
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then echo "Permission change on new pg_upgrade_info directory failed, $INFODIR.
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$BASENAME aborted." 1>&2
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exit 1
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fi
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# Dump schema
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pg_dumpall -s |
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@ -224,13 +239,13 @@ $0 aborted." 1>&2
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}' > "$INFODIR"/schema
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if [ $? -ne 0 ]
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then echo "Can not dump schema.
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$0 aborted." 1>&2
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$BASENAME aborted." 1>&2
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exit 1
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fi
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# Generate mappings for database
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make_dboidmap > "$INFODIR"/dboidmap
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make_dbobjoidmap > "$INFODIR"/dbobjoidmap
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make_dboidmap > "$INFODIR"/dboidmap || exit "$?"
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make_dbobjoidmap > "$INFODIR"/dbobjoidmap || exit "$?"
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# Generate setval() script for 7.1 because it has int4 sequences
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# Sequence XIDs changed from 7.2beta4 to beta5; we have to recreate them.
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@ -264,7 +279,7 @@ $0 aborted." 1>&2
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vacuumdb -a
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if [ $? -ne 0 ]
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then echo "Can not vacuum server.
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$0 aborted." 1>&2
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$BASENAME aborted." 1>&2
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exit 1
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fi
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@ -272,20 +287,21 @@ $0 aborted." 1>&2
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pg_ctl -w stop
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if [ $? -ne 0 ]
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then echo "Can not stop server.
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$0 aborted." 1>&2
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$BASENAME aborted." 1>&2
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exit 1
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fi
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mv "$DATADIR" "$INFODIR"
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# No matter what the directory name, call it data
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mv "$PGDATA" "$INFODIR"/data
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if [ $? -ne 0 ]
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then echo "Can not move old /$DATADIR out of the way.
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$0 aborted." 1>&2
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then echo "Can not move old /$PGDATA out of the way.
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$BASENAME aborted." 1>&2
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exit 1
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fi
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echo
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echo
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echo "Plase 1 completed.
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Continue with the steps outlined in the $0 manual page."
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Continue with the steps outlined in the $BASENAME manual page."
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exit 0
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fi
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@ -297,12 +313,12 @@ fi
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# check things
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if [ ! -d "$INFODIR" ]
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then echo "There is no '$INFODIR' directory from a phase 1 run of $0." 1>&2
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then echo "There is no '$INFODIR' directory from a phase 1 run of $BASENAME." 1>&2
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exit 1
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fi
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if [ ! -d "$SAVEDATA" ]
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then echo "There is no '$SAVEDATA' directory from the phase 1 run of $0." 1>&2
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then echo "There is no '$SAVEDATA' directory from the phase 1 run of $BASENAME." 1>&2
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exit 1
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fi
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@ -311,46 +327,46 @@ then echo "Cannot read '$SAVEDATA/PG_VERSION' --- something is wrong." 1>&2
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exit 1
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fi
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if [ ! -f "$DATADIR/PG_VERSION" ]
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then echo "Cannot read '$DATADIR/PG_VERSION' --- something is wrong." 1>&2
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if [ ! -f "$PGDATA/PG_VERSION" ]
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then echo "Cannot read '$PGDATA/PG_VERSION' --- something is wrong." 1>&2
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exit 1
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fi
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if [ ! -d "$DATADIR/base/1" ]
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then echo "Cannot find database template1 in '$DATADIR/base'." 1>&2
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echo "Are you running $0 as the postgres superuser?" 1>&2
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if [ ! -d "$PGDATA/base/1" ]
|
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then echo "Cannot find database template1 in '$PGDATA/base'." 1>&2
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echo "Are you running $BASENAME as the postgres superuser?" 1>&2
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exit 1
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fi
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# Get the actual versions seen in the data dirs.
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SRC_VERSION=`cat "$SAVEDATA"/PG_VERSION`
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DST_VERSION=`cat "$DATADIR"/PG_VERSION`
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DST_VERSION=`cat "$PGDATA"/PG_VERSION`
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# Check for version compatibility.
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# This code will need to be updated/reviewed for each new PostgreSQL release.
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if [ "$DST_VERSION" != "$CUR_VERSION" ]
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then echo "$0 is for PostgreSQL version $CUR_VERSION
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but $DATADIR/PG_VERSION contains $DST_VERSION." 1>&2
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then echo "$BASENAME is for PostgreSQL version $CUR_VERSION
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but $PGDATA/PG_VERSION contains $DST_VERSION." 1>&2
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echo "Did you run initdb for version $UPGRADE_VERSION by mistake?" 1>&2
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exit 1
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fi
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|
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# Stop server for pg_resetxlog use
|
||||
|
||||
if pg_ctl status | head -1 | grep -q "is running"
|
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if pg_ctl status | sed -n '1p' | grep "is running" > /dev/null 2>&1
|
||||
then pg_ctl -w stop
|
||||
if [ $? -ne 0 ]
|
||||
then echo "Can no start server.
|
||||
$0 aborted." 1>&2
|
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$BASENAME aborted." 1>&2
|
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exit 1
|
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fi
|
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fi
|
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|
||||
# check for proper pg_resetxlog version
|
||||
|
||||
pg_resetxlog 2>/dev/null
|
||||
pg_resetxlog 2> /dev/null
|
||||
# file not found status is normally 127, not 1
|
||||
if [ "$?" -ne 1 ]
|
||||
then echo "Unable to find pg_resetxlog in path.
|
||||
|
|
@ -358,7 +374,7 @@ Install it from pgsql/contrib/pg_resetxlog and continue.; exiting" 1>&2
|
|||
exit 1
|
||||
fi
|
||||
|
||||
if ! pg_resetxlog -x 2>&1 | grep -q 'xid'
|
||||
if ! pg_resetxlog -x 2>&1 | grep 'xid' > /dev/null 2>&1
|
||||
then echo "Old version of pg_resetxlog found in path.
|
||||
Install a newer version from pgsql/contrib/pg_resetxlog.; exiting" 1>&2
|
||||
exit 1
|
||||
|
|
@ -369,16 +385,16 @@ fi
|
|||
|
||||
SRC_XID=`pg_resetxlog -n "$SAVEDATA" | grep "NextXID" | awk -F' *' '{print $4}'`
|
||||
if [ "$SRC_VERSION" = "7.1" -a "$SRC_XID" -gt 2000000000 ]
|
||||
then echo "XID too high for $0.; exiting" 1>&2
|
||||
then echo "XID too high for $BASENAME.; exiting" 1>&2
|
||||
exit 1
|
||||
fi
|
||||
DST_XID=`pg_resetxlog -n "$DATADIR" | grep "NextXID" | awk -F' *' '{print $4}'`
|
||||
DST_XID=`pg_resetxlog -n "$PGDATA" | grep "NextXID" | awk -F' *' '{print $4}'`
|
||||
|
||||
# compare locales to make sure they match
|
||||
|
||||
pg_resetxlog -n "$SAVEDATA" | grep "^LC_" > /tmp/$$.0
|
||||
pg_resetxlog -n "$DATADIR" | grep "^LC_" > /tmp/$$.1
|
||||
if ! diff /tmp/$$.0 /tmp/$$.1 >/dev/null
|
||||
pg_resetxlog -n "$PGDATA" | grep "^LC_" > /tmp/$$.1
|
||||
if ! diff /tmp/$$.0 /tmp/$$.1 > /dev/null
|
||||
then echo "Locales do not match between the two versions.; exiting" 1>&2
|
||||
exit 1
|
||||
fi
|
||||
|
|
@ -388,7 +404,7 @@ fi
|
|||
pg_ctl -w start
|
||||
if [ $? -ne 0 ]
|
||||
then echo "Can not start server.
|
||||
$0 aborted." 1>&2
|
||||
$BASENAME aborted." 1>&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
|
|
@ -403,7 +419,7 @@ fi
|
|||
psql template1 < "$INFODIR"/schema
|
||||
if [ $? -ne 0 ]
|
||||
then echo "There were errors in the input script.
|
||||
$0 aborted." 1>&2
|
||||
$BASENAME aborted." 1>&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
|
|
@ -416,13 +432,13 @@ echo "Input script complete, fixing row commit statuses..."
|
|||
vacuumdb -a
|
||||
if [ $? -ne 0 ]
|
||||
then echo "There were errors during VACUUM.
|
||||
$0 aborted." 1>&2
|
||||
$BASENAME aborted." 1>&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# Generate mappings for database
|
||||
make_dboidmap > /tmp/$$.dboidmap
|
||||
make_dbobjoidmap > /tmp/$$.dbobjoidmap
|
||||
make_dboidmap > /tmp/$$.dboidmap || exit "$?"
|
||||
make_dbobjoidmap > /tmp/$$.dbobjoidmap || exit "$?"
|
||||
|
||||
# we are done with SQL database access
|
||||
# shutdown forces buffers to disk
|
||||
|
|
@ -445,8 +461,8 @@ do
|
|||
# Skip system tables, except for pg_largeobject
|
||||
# pg_toast tables are handled later as part of the
|
||||
# base table move
|
||||
if [ `expr "$OBJ" : 'pg_'` -eq 3 -a \
|
||||
`expr "$OBJ" : 'pg_largeobject'` -ne 14 ]
|
||||
if [ `expr X"$OBJ" : X'pg_'` -eq 4 -a \
|
||||
`expr X"$OBJ" : X'pg_largeobject'` -ne 15 ]
|
||||
then continue
|
||||
fi
|
||||
|
||||
|
|
@ -458,7 +474,8 @@ do
|
|||
move_objfiles
|
||||
|
||||
# Handle TOAST files if they exist
|
||||
if grep -q "^$DB pg_toast_$SRC_OID " "$INFODIR"/dbobjoidmap
|
||||
if grep "^$DB pg_toast_$SRC_OID " "$INFODIR"/dbobjoidmap \
|
||||
> /dev/null 2>&1
|
||||
then # toast heap
|
||||
SAVE_SRC_OID="$SRC_OID"
|
||||
SAVE_DST_OID="$DST_OID"
|
||||
|
|
@ -488,7 +505,7 @@ then MAX_XID="$SRC_XID"
|
|||
else MAX_XID="$DST_XID"
|
||||
fi
|
||||
|
||||
pg_resetxlog -x "$MAX_XID" "$DATADIR"
|
||||
pg_resetxlog -x "$MAX_XID" "$PGDATA"
|
||||
if [ "$?" -ne 0 ]
|
||||
then echo "Unable to set new XID.; exiting" 1>&2
|
||||
exit 1
|
||||
|
|
@ -496,8 +513,8 @@ fi
|
|||
|
||||
# Move over old WAL
|
||||
|
||||
rm -r "$DATADIR"/pg_xlog
|
||||
mv -f "$SAVEDATA"/pg_xlog "$DATADIR"
|
||||
rm -r "$PGDATA"/pg_xlog
|
||||
mv -f "$SAVEDATA"/pg_xlog "$PGDATA"
|
||||
|
||||
# Set last log file id and segment from old database
|
||||
|
||||
|
|
@ -516,7 +533,7 @@ fi
|
|||
|
||||
# Set checkpoint location of new database
|
||||
|
||||
pg_resetxlog -l "$LOG_ID" "$SEG_ID" "$DATADIR"
|
||||
pg_resetxlog -l "$LOG_ID" "$SEG_ID" "$PGDATA"
|
||||
if [ "$?" -ne 0 ]
|
||||
then echo "Unable to set new log file/segment id.; exiting" 1>&2
|
||||
exit 1
|
||||
|
|
@ -538,13 +555,13 @@ then echo "Set sequence values..."
|
|||
psql -d template1 -At < "$INFODIR"/setval
|
||||
if [ $? -ne 0 ]
|
||||
then echo "There were errors during int4 sequence restore.
|
||||
$0 aborted." 1>&2
|
||||
$BASENAME aborted." 1>&2
|
||||
exit 1
|
||||
fi
|
||||
fi
|
||||
|
||||
echo
|
||||
echo
|
||||
echo "You may remove the old database files with 'rm -r pg_upgrade'."
|
||||
echo "You may remove the old database files with 'rm -r $INFODIR'."
|
||||
|
||||
exit 0
|
||||
|
|
|
|||
Loading…
Reference in New Issue