lucene/src/scripts/abc

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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 make an Atomic Backup after Commit of
# a Solr Lucene collection.
orig_dir=$(pwd)
cd ${0%/*}/..
solr_root=$(pwd)
cd ${orig_dir}
curl_url=""
unset solr_hostname solr_port data_dir webapp_name user verbose debug solr_url
. ${solr_root}/bin/scripts-util
# set up variables
prog=${0##*/}
log=${solr_root}/logs/${prog}.log
# define usage string
USAGE="\
usage: $prog [-h hostname] [-p port] [-d dir] [-w webappname] [-u username] [-U url] [-v] [-V]
-h specify Solr hostname (defaults to localhost)
-p specify Solr port number
-w specify name of Solr webapp (defaults to solr)
-u specify user to sudo to before running script
-U specify full update url (overrides -h,-p,-w parameters)
-d specify directory holding index data
-v increase verbosity
-V output debugging info
"
# parse args
while getopts h:p:d:w:u:U:vV OPTION
do
case $OPTION in
h)
solr_hostname="$OPTARG"
;;
p)
solr_port="$OPTARG"
;;
d)
data_dir="$OPTARG"
;;
w)
webapp_name="$OPTARG"
;;
u)
user="$OPTARG"
;;
U)
solr_url="$OPTARG"
;;
v)
verbose="v"
;;
V)
debug="V"
;;
*)
echo "$USAGE"
exit 1
esac
done
[[ -n $debug ]] && set -x
# 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
if [[ -n ${solr_url} ]]
then
curl_url=${solr_url}
else
if [[ -z ${solr_port} ]]
then
echo "Solr port number missing in $confFile or command line."
echo "$USAGE"
exit 1
fi
# use default hostname if not specified
if [[ -z ${solr_hostname} ]]
then
solr_hostname=localhost
fi
# use default webapp name if not specified
if [[ -z ${webapp_name} ]]
then
webapp_name=solr
fi
curl_url=http://${solr_hostname}:${solr_port}/${webapp_name}/update
fi
fixUser "$@"
start=`date +"%s"`
logMessage started by $oldwhoami
logMessage command: $0 $@
logMessage sending commit to Solr server at ${curl_url}
rs=`curl ${curl_url} -s -H 'Content-type:text/xml; charset=utf-8' -d "<commit/>"`
if [[ $? != 0 ]]
then
logMessage failed to connect to Solr server at ${curl_url}
logMessage commit failed
logExit failed 1
fi
# check status of commit request - original format
echo $rs | grep '<result.*status="0"' > /dev/null 2>&1
if [[ $? != 0 ]]
then
# check status of commit request - new format
echo $rs | grep '<lst name="responseHeader"><int name="status">0</int>' > /dev/null 2>&1
if [[ $? != 0 ]]
then
logMessage commit request to Solr at ${curl_url} failed:
logMessage $rs
logExit failed 2
fi
fi
# successful commit creates a snapshot file synchronously
lastsnap=`ls -drt1 ${data_dir}/snapshot.* 2> /dev/null | tail -1 `
if [[ $lastsnap == "" ]]
then
logMessage commit did not create snapshot at ${curl_url}, backup failed:
logExit failed 3
fi
name=backup.${lastsnap##*snapshot.}
temp=temp-${name}
if [[ -d ${data_dir}/${name} ]]
then
logMessage backup directory ${data_dir}/${name} already exists
logExit aborted 1
fi
if [[ -d ${data_dir}/${temp} ]]
then
logMessage backingup of ${data_dir}/${name} in progress
logExit aborted 1
fi
logMessage making backup ${data_dir}/${name}
# clean up after INT/TERM
trap 'echo cleaning up, please wait ...;/bin/rm -rf ${data_dir}/${name} ${data_dir}/${temp};logExit aborted 13' INT TERM
# make a backup using hard links into temporary location
# then move it into place atomically
if [[ "${OS}" == "SunOS" || "${OS}" == "Darwin" ]]
then
orig_dir=$(pwd)
mkdir ${data_dir}/${temp}
cd ${lastsnap}
find . -print|cpio -pdlmu ${data_dir}/${temp} 1>/dev/null 2>&1
cd ${orig_dir}
else
cp -lr ${lastsnap} ${data_dir}/${temp}
fi
mv ${data_dir}/${temp} ${data_dir}/${name}
logExit ended 0