| #!/usr/bin/env 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. |
| |
| MYNAME="${BASH_SOURCE-$0}" |
| |
| function hadoop_usage |
| { |
| hadoop_add_option "--buildpaths" "attempt to add class files from build tree" |
| hadoop_add_option "--loglevel level" "set the log4j level for this command" |
| |
| hadoop_add_option "-policy <policy>" "set the balancer's policy" |
| hadoop_add_option "-threshold <threshold>" "set the threshold for balancing" |
| hadoop_generate_usage "${MYNAME}" false |
| } |
| |
| bin=$(cd -P -- "$(dirname -- "${MYNAME}")" >/dev/null && pwd -P) |
| |
| # let's locate libexec... |
| if [[ -n "${HADOOP_HOME}" ]]; then |
| HADOOP_DEFAULT_LIBEXEC_DIR="${HADOOP_HOME}/libexec" |
| else |
| HADOOP_DEFAULT_LIBEXEC_DIR="${bin}/../libexec" |
| fi |
| |
| HADOOP_LIBEXEC_DIR="${HADOOP_LIBEXEC_DIR:-$HADOOP_DEFAULT_LIBEXEC_DIR}" |
| # shellcheck disable=SC2034 |
| HADOOP_NEW_CONFIG=true |
| if [[ -f "${HADOOP_LIBEXEC_DIR}/hdfs-config.sh" ]]; then |
| . "${HADOOP_LIBEXEC_DIR}/hdfs-config.sh" |
| else |
| echo "ERROR: Cannot execute ${HADOOP_LIBEXEC_DIR}/hdfs-config.sh." 2>&1 |
| exit 1 |
| fi |
| |
| # Start balancer daemon. |
| |
| exec "${HADOOP_HDFS_HOME}/bin/hdfs" --config "${HADOOP_CONF_DIR}" --daemon start balancer "$@" |