mirror of https://github.com/apache/lucene.git
129 lines
3.0 KiB
Bash
Executable File
129 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# Shell script to take a snapshot of a Solr Lucene collection.
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orig_dir=$(pwd)
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cd ${0%/*}/..
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solr_root=$(pwd)
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cd ${orig_dir}
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unset data_dir user verbose debug
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. ${solr_root}/bin/scripts-util
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# set up variables
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prog=${0##*/}
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log=${solr_root}/logs/${prog}.log
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# define usage string
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USAGE="\
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usage: $prog [-d dir] [-u username] [-v] [-V] [-c]
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-d specify directory holding index data
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-u specify user to sudo to before running script
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-v increase verbosity
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-V output debugging info
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-c only take snapshot if different than previous
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"
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# parse args
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while getopts d:u:vVc OPTION
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do
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case $OPTION in
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d)
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data_dir="$OPTARG"
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;;
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u)
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user="$OPTARG"
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;;
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v)
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verbose="v"
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;;
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V)
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debug="V"
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;;
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c)
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check=1
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;;
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*)
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echo "$USAGE"
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exit 1
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esac
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done
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[[ -n $debug ]] && set -x
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fixUser "$@"
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dataDir
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setStartTime
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logMessage started by $oldwhoami
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logMessage command: $0 $@
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snap_name=snapshot.`date +"%Y%m%d%H%M%S"`
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name=${data_dir}/${snap_name}
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temp=${data_dir}/temp-${snap_name}
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if [[ -d ${name} ]]
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then
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logMessage snapshot directory ${name} already exists
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logExit aborted 1
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fi
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if [[ -d ${temp} ]]
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then
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logMessage snapshoting of ${name} in progress
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logExit aborted 1
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fi
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if [[ ${check} ]]
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then
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previous=`find ${data_dir} -name snapshot.\* | sort -r | head -1`
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if [[ -d ${previous} ]]
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then
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differences=`diff -q ${data_dir}/index ${previous} | wc -l`
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if [[ ${differences} -lt 1 ]]
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then
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logMessage Snap would be same as last, exiting
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logExit aborted 1
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fi
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fi
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fi
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# clean up after INT/TERM
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trap 'echo cleaning up, please wait ...;/bin/rm -rf ${name} ${temp};logExit aborted 13' INT TERM
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logMessage taking snapshot ${name}
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# take a snapshot using hard links into temporary location
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# then move it into place atomically
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if [[ "${OS}" == "SunOS" || "${OS}" == "Darwin" || "${OS}" == "FreeBSD" ]]
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then
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orig_dir=$(pwd)
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mkdir ${temp}
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cd ${data_dir}/index
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find . -print|cpio -pdlmu ${temp} 1>/dev/null 2>&1
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cd ${orig_dir}
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else
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cp -lr ${data_dir}/index ${temp}
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fi
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mv ${temp} ${name}
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logExit ended 0
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