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More pg_upgrade improvements. Almost done, except for max transaction
setting.
This commit is contained in:
Bruce Momjian
parent
4d151d0b12
commit
7a0672b7b1
@ -1,5 +1,5 @@
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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/Attic/pg_upgrade.sgml,v 1.14 2002/01/09 21:50:51 momjian Exp $
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/Attic/pg_upgrade.sgml,v 1.15 2002/01/10 04:58:19 momjian Exp $
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PostgreSQL documentation
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-->
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@ -50,7 +50,10 @@ pg_upgrade -s <replaceable class="parameter">filename</replaceable> [ -d <replac
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<step performance="required">
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<para>
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Back up your existing data directory, preferably by making a
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complete dump with pg_dumpall.
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complete dump with pg_dumpall. Those upgrading from 7.1 are
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required to supply this dump filename to pg_upgrade with the
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<option>-d</option> option. Other releases should not use the
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<option>-d</option> option.
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</para>
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</step>
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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/src/bin/pg_dump/Attic/pg_upgrade,v 1.21 2002/01/10 03:05:48 momjian Exp $
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# $Header: /cvsroot/pgsql/src/bin/pg_dump/Attic/pg_upgrade,v 1.22 2002/01/10 04:58:19 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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@ -77,51 +77,60 @@ then echo "Cannot read ./$OLDDIR/PG_VERSION --- something is wrong." 1>&2
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fi
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# Get the actual versions seen in the data dirs.
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DESTVERSION=`cat ./data/PG_VERSION`
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SRCVERSION=`cat ./$OLDDIR/PG_VERSION`
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DEST_VERSION=`cat ./data/PG_VERSION`
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SRC_VERSION=`cat ./$OLDDIR/PG_VERSION`
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# Check for version compatibility.
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# This code will need to be updated/reviewed for each new PostgreSQL release.
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# MYVERSION is the expected output database version
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MYVERSION="7.1"
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# UPGRADE_VERSION is the expected output database version
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UPGRADE_VERSION="7.1"
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if [ "$SRCVERSION" = "7.1" -a ! "$DATA" ]
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then echo "$0 requires a full data dump file to upgrade from version $SRCVERSION." 1>&2
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echo "Use the '-d' parameter to specify the dump file" 1>&2
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if [ "$SRC_VERSION" = "7.1" -a ! "$DATA" ]
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then echo "$0 requires a full data dump file to upgrade from version $SRC_VERSION." 1>&2
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echo "Use the '-d' parameter to specify the data dump file" 1>&2
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echo "If you don't have enough disk space to keep a dump file, grep out the '\\connect' and" 1>&2
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echo "'SELECT setval' lines from the dump file and pass that file to $0, e.g:" 1>&2
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echo 1>&2
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echo " pg_dumpall | egrep '^(\\connect)|SELECT setval \()[^ ]*$' > data.out" 1>&2
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exit 1
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fi
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if [ "$DESTVERSION" != "$MYVERSION" -a "$DESTVERSION" != "$SRCVERSION" ]
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then echo "$0 is for PostgreSQL version $MYVERSION, but ./data/PG_VERSION contains $DESTVERSION." 1>&2
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echo "Did you run initdb for version $MYVERSION?" 1>&2
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if [ "$SRC_VERSION" != "7.1" -a "$DATA" ]
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then echo "$0 does not require the -d option for this version." 1>&2
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exit 1
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fi
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if [ "$DEST_VERSION" != "$UPGRADE_VERSION" -a "$DEST_VERSION" != "$SRC_VERSION" ]
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then echo "`basename $0` is for PostgreSQL version $UPGRADE_VERSION, but ./data/PG_VERSION contains $DEST_VERSION." 1>&2
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echo "Did you run initdb for version $UPGRADE_VERSION?" 1>&2
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exit 1
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fi
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# Check that input database is of a compatible version (anything with the same
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# physical layout of user tables and indexes should be OK). I did not write
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# something like "$SRCVERSION -ge $MINVERSION" because test(1) isn't bright
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# something like "$SRC_VERSION -ge $UPGRADE_VERSION" because test(1) isn't bright
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# enough to compare dotted version strings properly. Using a case statement
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# looks uglier but is more flexible.
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case "$SRCVERSION" in
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case "$SRC_VERSION" in
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# 7.2) ;;
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*) echo "Sorry, `basename $0` cannot upgrade database version $SRCVERSION to $DESTVERSION." 1>&2
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*) echo "Sorry, `basename $0` cannot upgrade database version $SRC_VERSION to $DEST_VERSION." 1>&2
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echo "The on-disk structure of tables has changed." 1>&2
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echo "You will need to dump and restore using pg_dump." 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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esac
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# OK, ready to proceed.
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# Checking done. Ready to proceed.
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# Execute the schema script to create everything, except modify any
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# sequences with int4 maximums if we are upgrading from 7.1.
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cat $SCHEMA | awk -F' ' '{
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if ("'"$SRCVERSION"'" == "7.1" &&
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if ("'"$SRC_VERSION"'" == "7.1" &&
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$1 == "CREATE" &&
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$2 == "SEQUENCE" &&
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($9 >= 2147483646 && # handle OS round
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($9 >= 2147483646 && # handle OS rounding
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($9 <= 2147483648))
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{
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for(i=1; i < NF; i++)
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@ -134,32 +143,28 @@ cat $SCHEMA | awk -F' ' '{
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else print $0;
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}' |
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psql "template1"
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if [ $? -ne 0 ]
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then echo "There were errors in the input script $SCHEMA.
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$0 aborted." 1>&2
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exit 1
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fi
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if [ "$SRCVERSION" != "7.1" ]
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# Set sequence values for 7.1-version sequences, which are int4.
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if [ "$SRC_VERSION" != "7.1" ]
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then echo "Input script $SCHEMA complete, fixing row commit statuses..."
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else echo "Input script $SCHEMA complete, setting int8 sequences..."
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# Set all the sequence counters because they are not brought over
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# in the schema dump, and the old 7.1 sequences where int4 in size
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# so bringing over the file wouldn't help us anyway.
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cat $DATA | awk '$0 == "\\connect " || "SELECT setval (" \
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{print $0;}' |
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psql "template1"
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if [ $? -ne 0 ]
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then echo "There were errors in the input script $SCHEMA.
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# Set all the sequence counters because they are not brought over
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# in the schema dump.
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cat $DATA | egrep '^(\\connect)|SELECT setval \()[^ ]*$' |
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psql "template1"
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if [ $? -ne 0 ]
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then echo "There were errors in setting the sequence values.
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$0 aborted." 1>&2
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exit 1
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fi
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exit 1
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fi
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echo "Int8 sequences set, fixing row commit statuses..."
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echo "Int8 sequences set, fixing row commit statuses..."
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fi
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# Now vacuum each result database in case our transaction increase
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@ -174,10 +179,16 @@ $0 aborted." 1>&2
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fi
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done
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# should be pretty small file
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# Used for scans looking for a database/tablename match
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# New oid is looked up
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pg_dumpall -s > $TMPFILE 2>/dev/null
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if [ "$?" -ne 0 ]
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then echo "Unable to dump schema of new database.; exiting" 1>&2
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exit 1
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fi
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# flush buffers to disk
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# we are done with SQL database access
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# shutdown forces buffers to disk
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pg_ctl stop
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if [ "$?" -ne 0 ]
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then echo "Unable to stop database server.; exiting" 1>&2
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@ -188,7 +199,7 @@ echo "Commit fixes complete, moving data files..."
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cat "$SCHEMA" | while read LINE
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do
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if /bin/echo "$LINE" | grep -q "^\\\\connect [^ ]*$"
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if /bin/echo "$LINE" | grep -q '^\\connect [^ ]*$'
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then OLDDB="$DB"
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DB="`/bin/echo \"$LINE\" | cut -d' ' -f2`"
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if [ "$DB" = "-" ]
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@ -208,10 +219,19 @@ do
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then TABLE=""
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fi
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fi
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# 7.1 sequences were handled earlier because they were int4.
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if test "$SRC_VERSION" != "7.1" &&
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echo "$LINE" | egrep -q "^-- Name: [^ ]* Type: SEQUENCE "
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then TABLE="`echo \"$LINE\" | cut -d' ' -f3`"
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# skip system tables
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if [ "`echo \"$TABLE\" | cut -c 1-3`" = "pg_" ]
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then TABLE=""
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fi
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fi
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if [ "$DB" -a "$OID" -a "$TABLE" ]
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then
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NEWOID=`awk -F' ' '
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BEGIN { newdb=""; newoid="";
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BEGIN { newdb=""; newoid="";
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newtable=""; ret=0;}
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$1 == "\\\\connect" && $2 != "-" {newdb=$2;}
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$0 ~ /^-- TOC Entry ID [0-9]* .OID / \
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@ -219,36 +239,43 @@ do
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{print $0 >> "/tmp/x";
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print $3 >> "/tmp/x";
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print newdb," ", newoid >> "/tmp/x"}
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($0 ~ /^-- Name: [^ ]* Type: TABLE / && \
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$0 ~ /^-- Name: [^ ]* Type: INDEX /) && \
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($0 ~ /^-- Name: [^ ]* Type: TABLE / || \
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$0 ~ /^-- Name: [^ ]* Type: INDEX / || \
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$0 ~ /^-- Name: [^ ]* Type: SEQUENCE /) && \
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newdb == "'"$DB"'" && \
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$3 == "'"$TABLE"'" \
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{ ret=newoid; exit}
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END { print ret;}' $TMPFILE`
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if [ "$NEWOID" -eq 0 ]
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then echo "Move of database $DB, OID $OID, table $TABLE failed.\nNew oid not found; exiting" 1>&2
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then echo "Move of database $DB, OID $OID, table $TABLE failed.
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New oid not found; exiting" 1>&2
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exit 1
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fi
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# We use stars so we don't have to worry about database oids
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if [ `ls "$OLDDIR"/base/*/"$OID" | wc -l` -eq 0 ]
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then echo "Move of database $DB, OID $OID, table $TABLE failed.\nFile not found; exiting" 1>&2
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then echo "Move of database $DB, OID $OID, table $TABLE failed.
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File not found; exiting" 1>&2
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exit 1
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fi
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if [ `ls "$OLDDIR"/base/*/"$OID" | wc -l` -gt 1 ]
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then echo "Move of database $DB, OID $OID, table $TABLE failed.\nToo many found; exiting" 1>&2
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then echo "Move of database $DB, OID $OID, table $TABLE failed.
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Too many found; exiting" 1>&2
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exit 1
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fi
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if [ `ls data/base/*/"$NEWOID" | wc -l` -eq 0 ]
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then echo "Move of database $DB, OID $OID, table $TABLE to $NEWOID failed.\nFile not found; exiting" 1>&2
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then echo "Move of database $DB, OID $OID, table $TABLE to $NEWOID failed.
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File not found; exiting" 1>&2
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exit 1
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fi
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if [ `ls data/base/*/"$NEWOID" | wc -l` -gt 1 ]
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then echo "Move of database $DB, OID $OID, table $TABLE to $NEWOID failed.\nToo many found; exiting" 1>&2
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then echo "Move of database $DB, OID $OID, table $TABLE to $NEWOID failed.
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Too many found; exiting" 1>&2
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exit 1
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fi
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mv -f "$OLDDIR"/base/*/"$OID" data/base/*/"$NEWOID"
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if [ "$?" -ne 0 ]
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then echo "Move of database $DB, OID $OID, table $TABLE \n to $NEWOID failed.; exiting" 1>&2
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then echo "Move of database $DB, OID $OID, table $TABLE
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to $NEWOID failed.; exiting" 1>&2
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exit 1
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fi
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TABLE=""
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@ -256,7 +283,7 @@ do
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done
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# 7.1 has non-compressed log file format
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if [ "$SRCVERSION" = "7.1" ]
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if [ "$SRC_VERSION" = "7.1" ]
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then
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# pg_log is oid 1269 in 7.1
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LOGSIZE=`ls -l "$OLDDIR"/global/1269 "$OLDDIR"/global/1269.* 2>/dev/null |
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@ -270,7 +297,6 @@ then
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# set max transaction id
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else
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# how to handle 7.2?
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rm -r data/pg_clog &&
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mv "$OLDDIR"/data/pg_clog data/pg_clog &&
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mv "$OLDDIR"/data/global/pg_control data/global/pg_control
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