/
cassandraMaintenance.sh
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/
cassandraMaintenance.sh
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#!/bin/bash
# Copyright 2012, Nathan Milford
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
logFile="/var/log/cassandra/mainenance.log"
# Older Cassandra insalls use 8080, noewer ones use 7199.
jmxPort=7199
checkForNodetool() {
if [ ! -x /usr/bin/nodetool ]; then
echo "nodetool not found."
exit 1
fi
}
runRepair() {
echo "$keyspace.$columnfamily repair started at $(date)" >> $logFile
nodetool -h $HOSTNAME -p $jmxPort repair $keyspace $columnfamily
echo "$keyspace.$columnfamily repair completed at $(date)" >> $logFile
}
runCompaction() {
echo "$keyspace.$columnfamily compaction started at $(date)" >> $logFile
nodetool -h $HOSTNAME -p $jmxPort compact $keyspace $columnfamily
echo "$keyspace.$columnfamily compaction completed at $(date)" >> $logFile
}
runCleanup() {
echo "$keyspace.$columnfamily cleanup started at $(date)" >> $logFile
nodetool -h $HOSTNAME -p $jmxPort cleanup $keyspace $columnfamily
echo "$keyspace.$columnfamily cleanup completed at $(date)" >> $logFile
}
reportRuntime() {
S=$SECONDS
((h=S/3600))
((m=S%3600/60))
((s=S%60))
echo "Total Run Time was $h:$m:$s" >> $logFile
}
getKeyspaces() {
echo "show keyspaces;" > /var/tmp/ks.cmd
keyspaces=( $(cassandra-cli -h $HOSTNAME -p 9160 -f /var/tmp/ks.cmd 2>&1 | grep Keyspace | grep -v 'system\|OpsCenter' | awk {' print $2 '} | sed 's/://' ) )
rm -f /var/tmp/ks.cmd
}
getColumnfamilies() {
echo "describe $keyspace;" > /var/tmp/cf.cmd
columnfamilies=( $(cassandra-cli -h $HOSTNAME -p 9160 -f /var/tmp/cf.cmd 2>&1 | grep ColumnFamily | awk {' print $2 '} | sed 's/://' ) )
rm -f /var/tmp/cf.cmd
}
main() {
checkForNodetool
getKeyspaces
for keyspace in "${keyspaces[@]}"; do
getColumnfamilies
for columnfamily in "${columnfamilies[@]}"; do
runRepair
runCompaction
runCleanup
reportRuntime
done
done
}
main