lucene/src/scripts/snapcleaner

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#!/bin/bash
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.
#
# Shell script to clean up snapshots of a Solr Lucene collection.
orig_dir=$(pwd)
cd ${0%/*}/..
solr_root=$(pwd)
cd ${orig_dir}
unset days num data_dir user verbose debug
. ${solr_root}/bin/scripts-util
# set up variables
prog=${0##*/}
log=${solr_root}/logs/${prog}.log
# define usage string
USAGE="\
usage: $prog -D <days> | -N <num> [-d dir] [-u username] [-v]
-D <days> cleanup snapshots more than <days> days old
-N <num> keep the most recent <num> number of snapshots and
cleanup up the remaining ones that are not being pulled
-d specify directory holding index data
-u specify user to sudo to before running script
-v increase verbosity
-V output debugging info
"
# parse args
while getopts D:N:d:u:vV OPTION
do
case $OPTION in
D)
days="$OPTARG"
;;
N)
num="$OPTARG"
;;
d)
data_dir="$OPTARG"
;;
u)
user="$OPTARG"
;;
v)
verbose="v"
;;
V)
debug="V"
;;
*)
echo "$USAGE"
exit 1
esac
done
[[ -n $debug ]] && set -x
if [[ -z ${days} && -z ${num} ]]
then
echo "$USAGE"
exit 1
fi
fixUser "$@"
# use default value for data_dir if not specified
# relative path starts at ${solr_root}
if [[ -z ${data_dir} ]]
then
data_dir=${solr_root}/data
elif [[ "`echo ${data_dir}|cut -c1`" != "/" ]]
then
data_dir=${solr_root}/${data_dir}
fi
function remove
{
syncing=`ps -fwwwu ${user}|grep -w rsync|grep -v grep|grep -w $1`
if [[ -n $syncing ]]
then
logMessage $1 not removed - rsync in progress
else
logMessage removing snapshot $1
/bin/rm -rf $1
fi
}
start=`date +"%s"`
logMessage started by $oldwhoami
logMessage command: $0 $@
# trap control-c
trap 'echo "caught INT/TERM, exiting now but partial cleanup may have already occured";logExit aborted 13' INT TERM
if [[ -n ${days} ]]
then
#is maxdepth supported?
find ${data_dir} -maxdepth 0 -name foobar >/dev/null 2>&1
if [ $? = 0 ]; then
maxdepth="-maxdepth 1"
else
unset maxdepth
fi
logMessage cleaning up snapshots more than ${days} days old
for i in `find ${data_dir} ${maxdepth} -name 'snapshot.*' -mtime +${days} -print`
do
remove $i
done
elif [[ -n ${num} ]]
then
logMessage cleaning up all snapshots except for the most recent ${num} ones
unset snapshots count
snapshots=`ls -cd ${data_dir}/snapshot.* 2>/dev/null`
if [[ $? == 0 ]]
then
count=`echo $snapshots|wc -w`
startpos=`expr $num + 1`
if [[ $count -gt $num ]]
then
for i in `echo $snapshots|cut -f${startpos}- -d" "`
do
remove $i
done
fi
fi
fi
logExit ended 0