| #!/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 |