Administering Ambari
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Disable manage.include.files for HDFS

Using Ambari Web, disnable automated host participation by setting manage.include.files properties to false in the HDFS configuration.

When manage.include.files is disabled, Ambari does not manage the files that include and exclude hosts participating in cluster operations. Ambari will not updates these files based on the state of hosts as displayed in Ambari Web. Set the manage.include.files=false and remove the dfs.hosts property from the HDFS configuration to disable automated host file participation for the HDFS service.
  1. Using Ambari Web, browse to Services > HDFS.
  2. In the Advanced hdfs-site configuration section, set the manage.include.files property to false.
  3. In the Custom hdfs-site configuration section, remove the dfs.hosts property
  4. Restart services, as prompted by Ambari.
When manage.include.files is disabled, Ambari does not manage the files that include and exclude hosts participating in cluster operations.