blob: 7560fb980810622e6ba212b9d983850d97b9684e [file] [log] [blame]
#!/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
JAR_FILES_LEGACY_FOLDER="/usr/lib/ambari-metrics-sink-legacy"
HADOOP_SINK_LINK="/usr/lib/ambari-metrics-hadoop-sink/ambari-metrics-hadoop-sink.jar"
HADOOP_LEGACY_LINK_NAME="/usr/lib/ambari-metrics-hadoop-sink/ambari-metrics-hadoop-sink-legacy.jar"
if [ -f ${HADOOP_SINK_LINK} ]
then
old_jar=$(readlink -f ${HADOOP_SINK_LINK})
version_part=$(basename ${old_jar} | awk -F"-" '{print $7}')
IFS=. version=(${version_part})
unset IFS
if [[ ${version[0]} -le 2 && ${version[1]} -lt 7 ]] # backup only required on upgrade from version < 2.7
then
if [ ! -d "$JAR_FILES_LEGACY_FOLDER" ]
then
mkdir -p "$JAR_FILES_LEGACY_FOLDER"
fi
echo "Backing up Ambari metrics hadoop sink jar ${old_jar} -> $JAR_FILES_LEGACY_FOLDER/"
cp "${old_jar}" "${JAR_FILES_LEGACY_FOLDER}/"
HADOOP_SINK_LEGACY_JAR="$JAR_FILES_LEGACY_FOLDER/$(basename ${old_jar})"
echo "Creating symlink for backup jar $HADOOP_LEGACY_LINK_NAME -> $HADOOP_SINK_LEGACY_JAR"
rm -f "${HADOOP_LEGACY_LINK_NAME}" ; ln -s "${HADOOP_SINK_LEGACY_JAR}" "${HADOOP_LEGACY_LINK_NAME}"
fi
fi
exit 0