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More cleanups with ideas from Peter.

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This commit is contained in:
Bruce Momjian 2002-01-15 04:50:37 +00:00
parent 86beaf4fa0
commit 8e76187790
2 changed files with 57 additions and 78 deletions
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10
contrib/pg_upgrade/README
View File

@ -10,13 +10,3 @@ Read the manual page for more information. To view it:
Bruce Momjian
2002-01-14
--
To migrate this to newer versions of PostgreSQL:
1) Update the version numbers at the top of the file
2) Search for specific version mentions in the script and update
accordingly.
3) Add changes for next version.

125
contrib/pg_upgrade/pg_upgrade
View File

@ -1,12 +1,15 @@
#!/bin/sh
z#!/bin/sh
#
# pg_upgrade: update a database without needing a full dump/reload cycle.
# CAUTION: Read the manual page before trying to use this!
# $Header: /cvsroot/pgsql/contrib/pg_upgrade/Attic/pg_upgrade,v 1.3 2002/01/15 04:05:24 momjian Exp $
# $Header: /cvsroot/pgsql/contrib/pg_upgrade/Attic/pg_upgrade,v 1.4 2002/01/15 04:50:37 momjian Exp $
#
# NOTE: we must be sure to update the version-checking code a few dozen lines
# below for each new PostgreSQL release.
# To migrate this to newer versions of PostgreSQL:
# 1) Update the version numbers at the top of the file
# 2) Search for specific version mentions in the script and update
# accordingly.
# 3) Add changes for next version.
#set -x
@ -15,8 +18,7 @@ ENABLE="Y"
if [ "$ENABLE" != "Y" ]
then
echo "Sorry, $0 cannot upgrade database
version $SRC_VERSION to $DST_VERSION." 1>&2
echo "Sorry, $0 cannot upgrade database version $SRC_VERSION to $DST_VERSION." 1>&2
echo "The on-disk structure of tables has changed." 1>&2
echo "You will need to dump and restore using pg_dumpall." 1>&2
exit 1
@ -59,8 +61,7 @@ then echo "You must set the PGDATA environment variable or specify it with -D."
fi
if [ ! -d "$PGDATA" ]
then echo "$PGDATA does not exist.
$BASENAME aborted." 1>&2
then echo "$PGDATA does not exist. Exiting." 1>&2
if [ "$PHASE" -eq 2 ]
then echo "Perhaps you didn't run initdb." 1>&2
fi
@ -68,8 +69,7 @@ $BASENAME aborted." 1>&2
fi
if [ "$USER" = "root" -o ! -r "$PGDATA"/PG_VERSION ]
then echo "You must run this as the PostgreSQL superuser.
$BASENAME aborted." 1>&2
then echo "You must run this as the PostgreSQL superuser. Exiting." 1>&2
exit 1
fi
@ -120,15 +120,15 @@ move_objfiles()
if [ ! -f "$SAVEDATA"/base/"$SRC_DBOID"/"$SRC_OID" -a \
! -h "$SAVEDATA"/base/"$SRC_DBOID"/"$SRC_OID" ]
then echo "Move of database $DB, OID $SRC_OID, object $OBJ failed.
File not found; exiting" 1>&2
then echo "Moving of database $DB, OID $SRC_OID, object $OBJ failed." 1>&2
echo "File not found. Exiting." 1>&2
return 1
fi
if [ ! -f "$PGDATA"/base/"$DST_DBOID"/"$DST_OID" -a \
! -h "$PGDATA"/base/"$DST_DBOID"/"$DST_OID" ]
then echo "Move of database $DB, OID $DST_OID, object $OBJ failed.
File not found; exiting" 1>&2
then echo "Moving of database $DB, OID $DST_OID, object $OBJ failed." 1>&2
echo "File not found. Exiting." 1>&2
return 1
fi
@ -136,8 +136,8 @@ File not found; exiting" 1>&2
mv -f "$SAVEDATA"/base/"$SRC_DBOID"/"$SRC_OID" "$PGDATA"/base/"$DST_DBOID"/"$DST_OID"
if [ "$?" -ne 0 ]
then echo "Move of database $DB, OID $SRC_OID, object $OBJ
to $DST_OID failed.; exiting" 1>&2
then echo "Moving of database $DB, OID $SRC_OID, object $OBJ" 1>&2
echo "to $DST_OID failed. Exiting" 1>&2
return 1
fi
@ -148,8 +148,8 @@ to $DST_OID failed.; exiting" 1>&2
EXT=`basename "$FILE" | sed 's/^.*\.\(.*\)$/\1/'`
mv -f "$FILE" "$PGDATA"/base/"$DST_DBOID"/"$DST_OID"."$EXT"
if [ "$?" -ne 0 ]
then echo "Move of database $DB, OID $SRC_OID, object $OBJ
to $DST_OID failed.; exiting" 1>&2
then echo "Moving of database $DB, OID $SRC_OID, object $OBJ" 1>&2
echo "to $DST_OID failed. Exiting." 1>&2
return 1
fi
done
@ -171,17 +171,16 @@ then
# get version
SRC_VERSION=`cat "$PGDATA"/PG_VERSION`
if [ "$SRC_VERSION" = "" ]
then echo "$BASENAME can not find PostgreSQL version file '$PGDATA/PG_VERSION'.
$BASENAME aborted." 1>&2
then echo "$BASENAME can not find the PostgreSQL version file" 1>&2
echo "'$PGDATA/PG_VERSION'. Exiting." 1>&2
exit 1
fi
if [ "$SRC_VERSION" != "$CUR_VERSION" -a \
"$SRC_VERSION" != "$UPGRADE_VERSION" ]
then echo "$BASENAME supports versions $UPGRADE_VERSION and $CUR_VERSION only." 1>&2
echo "However, your database is version $SRC_VERSION;
$BASENAME aborted." 1>&2
echo "You will need to dump and restore using pg_dumpall." 1>&2
echo "However, your database is version $SRC_VERSION." 1>&2
echo "You will need to dump and restore using pg_dumpall. Exiting." 1>&2
exit 1
fi
@ -189,27 +188,26 @@ $BASENAME aborted." 1>&2
if ! pg_ctl status | sed -n '1p' | grep "is running" > /dev/null 2>&1
then pg_ctl -w start
if [ $? -ne 0 ]
then echo "Can not start server.
$BASENAME aborted." 1>&2
then echo "Can not start server. Exiting." 1>&2
exit 1
fi
fi
# create directory for our data
if ! rm -rf "$INFODIR"
then echo "Deletion of old pg_upgrade_info directory failed, $INFODIR.
$BASENAME aborted." 1>&2
then echo "Deletion of old pg_upgrade_info directory $INFODIR failed." 1>&2
echo "Exiting." 1>&2
exit 1
fi
if ! mkdir "$INFODIR"
then echo "Creation of new pg_upgrade_info directory failed, $INFODIR.
$BASENAME aborted." 1>&2
then echo "Creation of new pg_upgrade_info directory $INFODIR failed." 1>&2
echo "Exiting." 1>&2
exit 1
fi
if ! chmod og-rwx "$INFODIR"
then echo "Permission change on new pg_upgrade_info directory failed, $INFODIR.
$BASENAME aborted." 1>&2
then echo "Permission change on new pg_upgrade_info directory $INFODIR failed." 1>&2
echo "Exiting." 1>&2
exit 1
fi
@ -238,8 +236,7 @@ $BASENAME aborted." 1>&2
else print $0;
}' > "$INFODIR"/schema
if [ $? -ne 0 ]
then echo "Can not dump schema.
$BASENAME aborted." 1>&2
then echo "Can not dump schema. Exiting." 1>&2
exit 1
fi
@ -278,30 +275,27 @@ $BASENAME aborted." 1>&2
vacuumdb -a
if [ $? -ne 0 ]
then echo "Can not vacuum server.
$BASENAME aborted." 1>&2
then echo "Can not vacuum server. Exiting." 1>&2
exit 1
fi
# Stop server so we can move the directory.
pg_ctl -w stop
if [ $? -ne 0 ]
then echo "Can not stop server.
$BASENAME aborted." 1>&2
then echo "Can not stop server. Exiting." 1>&2
exit 1
fi
# No matter what the directory name, call it data
mv "$PGDATA" "$INFODIR"/data
if [ $? -ne 0 ]
then echo "Can not move old /$PGDATA out of the way.
$BASENAME aborted." 1>&2
then echo "Can not move old $PGDATA out of the way. Exiting." 1>&2
exit 1
fi
echo
echo
echo "Plase 1 completed.
Continue with the steps outlined in the $BASENAME manual page."
echo "Plase 1 completed."
echo "Continue with the steps outlined in the $BASENAME manual page."
exit 0
fi
@ -313,7 +307,7 @@ fi
# check things
if [ ! -d "$INFODIR" ]
then echo "There is no '$INFODIR' directory from a phase 1 run of $BASENAME." 1>&2
then echo "There is no '$INFODIR' directory from the phase 1 run of $BASENAME." 1>&2
exit 1
fi
@ -347,8 +341,8 @@ DST_VERSION=`cat "$PGDATA"/PG_VERSION`
# This code will need to be updated/reviewed for each new PostgreSQL release.
if [ "$DST_VERSION" != "$CUR_VERSION" ]
then echo "$BASENAME is for PostgreSQL version $CUR_VERSION
but $PGDATA/PG_VERSION contains $DST_VERSION." 1>&2
then echo "$BASENAME is for PostgreSQL version $CUR_VERSION" 1>&2
echo "but $PGDATA/PG_VERSION contains $DST_VERSION." 1>&2
echo "Did you run initdb for version $UPGRADE_VERSION by mistake?" 1>&2
exit 1
fi
@ -358,8 +352,7 @@ fi
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.
$BASENAME aborted." 1>&2
then echo "Can no start server. Exiting." 1>&2
exit 1
fi
fi
@ -369,14 +362,15 @@ fi
pg_resetxlog 2> /dev/null
# file not found status is normally 127, not 1
if [ "$?" -ne 1 ]
then echo "Unable to find pg_resetxlog in path.
Install it from pgsql/contrib/pg_resetxlog and continue.; exiting" 1>&2
then echo "Unable to find pg_resetxlog in your path." 1>&2
echo "Install it from pgsql/contrib/pg_resetxlog and continue. Exiting." 1>&2
exit 1
fi
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
then echo "Old version of pg_resetxlog found in path." 1>&2
echo "Install a newer version of pg_resetxlog from pgsql/contrib/pg_resetxlog." 1>&2
echo "Exiting." 1>&2
exit 1
fi
@ -385,7 +379,7 @@ 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 $BASENAME.; exiting" 1>&2
then echo "XID too high for $BASENAME. Exiting." 1>&2
exit 1
fi
DST_XID=`pg_resetxlog -n "$PGDATA" | grep "NextXID" | awk -F' *' '{print $4}'`
@ -395,7 +389,7 @@ DST_XID=`pg_resetxlog -n "$PGDATA" | grep "NextXID" | awk -F' *' '{print $4}'`
pg_resetxlog -n "$SAVEDATA" | grep "^LC_" > /tmp/$$.0
pg_resetxlog -n "$PGDATA" | grep "^LC_" > /tmp/$$.1
if ! diff /tmp/$$.0 /tmp/$$.1 > /dev/null
then echo "Locales do not match between the two versions.; exiting" 1>&2
then echo "Locales do not match between the two versions. Exiting." 1>&2
exit 1
fi
@ -403,8 +397,7 @@ fi
pg_ctl -w start
if [ $? -ne 0 ]
then echo "Can not start server.
$BASENAME aborted." 1>&2
then echo "Can not start server. Exiting." 1>&2
exit 1
fi
@ -418,12 +411,11 @@ fi
psql template1 < "$INFODIR"/schema
if [ $? -ne 0 ]
then echo "There were errors in the input script.
$BASENAME aborted." 1>&2
then echo "There were errors in the input script. Exiting." 1>&2
exit 1
fi
echo "Input script complete, fixing row commit statuses..."
echo "Input script completed, fixing row commit statuses..."
# XXX do we still need this?
# Now vacuum each result database because our movement of transaction log
@ -431,8 +423,7 @@ echo "Input script complete, fixing row commit statuses..."
vacuumdb -a
if [ $? -ne 0 ]
then echo "There were errors during VACUUM.
$BASENAME aborted." 1>&2
then echo "There were errors during VACUUM. Exiting." 1>&2
exit 1
fi
@ -445,7 +436,7 @@ make_dbobjoidmap > /tmp/$$.dbobjoidmap || exit "$?"
pg_ctl -w stop
if [ "$?" -ne 0 ]
then echo "Unable to stop database server.; exiting" 1>&2
then echo "Unable to stop database server. Exiting." 1>&2
exit 1
fi
@ -507,7 +498,7 @@ fi
pg_resetxlog -x "$MAX_XID" "$PGDATA"
if [ "$?" -ne 0 ]
then echo "Unable to set new XID.; exiting" 1>&2
then echo "Unable to set new XID. Exiting." 1>&2
exit 1
fi
@ -521,13 +512,13 @@ mv -f "$SAVEDATA"/pg_xlog "$PGDATA"
LOG_ID=`pg_resetxlog -n "$SAVEDATA" | grep "Current log file id:" |
awk -F' *' '{print $5}'`
if [ "$LOG_ID" = "" ]
then echo "Unable to get old log file id.; exiting" 1>&2
then echo "Unable to get old log file id. Exiting." 1>&2
exit 1
fi
SEG_ID=`pg_resetxlog -n "$SAVEDATA" | grep "Next log file segment:" |
awk -F' *' '{print $5}'`
if [ "$SEG_ID" = "" ]
then echo "Unable to get old log segment id.; exiting" 1>&2
then echo "Unable to get old log segment id. Exiting." 1>&2
exit 1
fi
@ -535,7 +526,7 @@ fi
pg_resetxlog -l "$LOG_ID" "$SEG_ID" "$PGDATA"
if [ "$?" -ne 0 ]
then echo "Unable to set new log file/segment id.; exiting" 1>&2
then echo "Unable to set new log file/segment id. Exiting." 1>&2
exit 1
fi
@ -543,7 +534,7 @@ fi
pg_ctl -w start
if [ "$?" -ne 0 ]
then echo "Unable to restart database server.; exiting" 1>&2
then echo "Unable to restart database server. Exiting." 1>&2
exit 1
fi
@ -554,8 +545,7 @@ if [ "$SRC_VERSION" = "7.1" -o \
then echo "Set sequence values..."
psql -d template1 -At < "$INFODIR"/setval
if [ $? -ne 0 ]
then echo "There were errors during int4 sequence restore.
$BASENAME aborted." 1>&2
then echo "There were errors during int4 sequence restore. Exiting." 1>&2
exit 1
fi
fi
@ -563,5 +553,4 @@ fi
echo
echo
echo "You may remove the old database files with 'rm -r $INFODIR'."
exit 0