HDFS-11962. Ozone: Add stop-ozone.sh script. Contributed by Weiwei Yang.
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#!/usr/bin/env bash
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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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# Stop hdfs and ozone daemons.
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# Run this on master node.
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function hadoop_usage
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{
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echo "Usage: stop-ozone.sh"
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}
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this="${BASH_SOURCE-$0}"
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bin=$(cd -P -- "$(dirname -- "${this}")" >/dev/null && pwd -P)
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# let's locate libexec...
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if [[ -n "${HADOOP_HOME}" ]]; then
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HADOOP_DEFAULT_LIBEXEC_DIR="${HADOOP_HOME}/libexec"
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else
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HADOOP_DEFAULT_LIBEXEC_DIR="${bin}/../libexec"
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fi
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HADOOP_LIBEXEC_DIR="${HADOOP_LIBEXEC_DIR:-$HADOOP_DEFAULT_LIBEXEC_DIR}"
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# shellcheck disable=SC2034
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HADOOP_NEW_CONFIG=true
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if [[ -f "${HADOOP_LIBEXEC_DIR}/hdfs-config.sh" ]]; then
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# shellcheck disable=SC1090
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. "${HADOOP_LIBEXEC_DIR}/hdfs-config.sh"
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else
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echo "ERROR: Cannot execute ${HADOOP_LIBEXEC_DIR}/hdfs-config.sh." 2>&1
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exit 1
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fi
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#---------------------------------------------------------
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# Check if ozone is enabled
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OZONE_ENABLED=$("${HADOOP_HDFS_HOME}/bin/hdfs" getconf -confKey ozone.enabled | tr '[:upper:]' '[:lower:]' 2>&-)
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if [[ "${OZONE_ENABLED}" != "true" ]]; then
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echo "Operation is not supported because ozone is not enabled."
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exit -1
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fi
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#---------------------------------------------------------
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# Start hdfs before starting ozone daemons
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if [[ -f "${bin}/stop-dfs.sh" ]]; then
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"${bin}/stop-dfs.sh"
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else
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echo "ERROR: Cannot execute ${bin}/stop-dfs.sh." 2>&1
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exit 1
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fi
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#---------------------------------------------------------
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# Ozone keyspacemanager nodes
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KSM_NODES=$("${HADOOP_HDFS_HOME}/bin/hdfs" getconf -keyspacemanagers 2>/dev/null)
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echo "Stopping key space manager nodes [${KSM_NODES}]"
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if [[ "${KSM_NODES}" == "0.0.0.0" ]]; then
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KSM_NODES=$(hostname)
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fi
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hadoop_uservar_su hdfs ksm "${HADOOP_HDFS_HOME}/bin/hdfs" \
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--workers \
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--config "${HADOOP_CONF_DIR}" \
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--hostnames "${KSM_NODES}" \
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--daemon stop \
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ksm
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#---------------------------------------------------------
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# Ozone storagecontainermanager nodes
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SCM_NODES=$("${HADOOP_HDFS_HOME}/bin/hdfs" getconf -storagecontainermanagers 2>/dev/null)
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echo "Stopping storage container manager nodes [${SCM_NODES}]"
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hadoop_uservar_su hdfs scm "${HADOOP_HDFS_HOME}/bin/hdfs" \
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--workers \
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--config "${HADOOP_CONF_DIR}" \
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--hostnames "${SCM_NODES}" \
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--daemon stop \
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scm
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