branch-1.2/ambari-agent/src/main/puppet/modules/hdp-hadoop/manifests/hdfs/decommission.pp

#
#
# 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.
#
#
class hdp-hadoop::hdfs::decommission(
) inherits hdp-hadoop::params
{
  if hdp_is_empty($configuration[hdfs-site]['dfs.hosts.exclude']) {
    hdp_fail("There is no path to exclude file in configuration!")
  }

  hdp-hadoop::hdfs::generate_exclude_file{'exclude_file':}

  hdp::exec{"hadoop dfsadmin -refreshNodes":
      command => "hadoop dfsadmin -refreshNodes",
      user => $hdp::params::hdfs_user,
      require => Hdp-Hadoop::Hdfs::Generate_Exclude_File['exclude_file']
    }
  
}