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69 lines
2.5 KiB
Bash
69 lines
2.5 KiB
Bash
#!/bin/bash
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set -e
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source $PWD/initdb.sh
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CUR=$PWD
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PG_VERSION_OLD=$1
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PG_VERSION_NEW=$2
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PGBINOLD="/usr/local/pg${PG_VERSION_OLD}/bin"
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PGDATAOLD=${PGDATA}/pg${PG_VERSION_OLD}
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PGDATANEW=${PGDATA}/pg${PG_VERSION_NEW}
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# to handle the PG 9.6 only
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if [ -s $PGDATA/PG_VERSION ]; then
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PGDATAOLD=$PGDATA
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fi
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#
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# Init DB: $PGDATA is empty.
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# Upgrade DB: 1, has $PGDATA\PG_VERSION. 2, has pg old version directory with PG_VERSION inside.
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#
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if [ "$(ls -A $PGDATA)" ]; then
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if [ ! -d $PGDATANEW ]; then
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if [ ! -d $PGDATAOLD ] || [ ! -s $PGDATAOLD/PG_VERSION ]; then
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echo "incorrect data: $PGDATAOLD, make sure $PGDATAOLD is not empty and with PG_VERSION inside."
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exit 1
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fi
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initPG $PGDATANEW false
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set +e
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# In some cases, like helm upgrade, the postgresql may not quit cleanly.
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# Use start & stop to clean the unexpected status. Error:
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# There seems to be a postmaster servicing the new cluster.
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# Please shutdown that postmaster and try again.
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# Failure, exiting
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$PGBINOLD/pg_ctl -D "$PGDATAOLD" -w -o "-p 5433" start
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$PGBINOLD/pg_ctl -D "$PGDATAOLD" -m fast -w stop
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./$CUR/upgrade.sh --old-bindir $PGBINOLD --old-datadir $PGDATAOLD --new-datadir $PGDATANEW
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# it needs to clean the $PGDATANEW on upgrade failure
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if [ $? -ne 0 ]; then
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echo "remove the $PGDATANEW after fail to upgrade"
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rm -rf $PGDATANEW
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exit 1
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fi
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set -e
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echo "remove the $PGDATAOLD after upgrade success."
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if [ "$PGDATAOLD" = "$PGDATA" ]; then
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find $PGDATA/* -prune ! -name pg${PG_VERSION_NEW} -exec rm -rf {} \;
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else
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rm -rf $PGDATAOLD
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fi
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else
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echo "no need to upgrade postgres, launch it."
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fi
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else
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initPG $PGDATANEW true
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fi
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POSTGRES_PARAMETER=''
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file_env 'POSTGRES_MAX_CONNECTIONS' '1024'
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# The max value of 'max_connections' is 262143
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if [ $POSTGRES_MAX_CONNECTIONS -le 0 ] || [ $POSTGRES_MAX_CONNECTIONS -gt 262143 ]; then
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POSTGRES_MAX_CONNECTIONS=262143
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fi
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POSTGRES_PARAMETER="${POSTGRES_PARAMETER} -c max_connections=${POSTGRES_MAX_CONNECTIONS}"
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exec postgres -D $PGDATANEW $POSTGRES_PARAMETER
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