Federation: Balancer cannot start with with multiple namenodes.
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Key: HDFS-1684
URL: https://issues.apache.org/jira/browse/HDFS-1684
Project: Hadoop HDFS
Issue Type: Sub-task
Components: balancer
Affects Versions: Federation Branch
Reporter: Tsz Wo (Nicholas), SZE
Assignee: Tsz Wo (Nicholas), SZE
Attachments: 4342723.patch
The balancer creates the file when it starts; and delete the files when it
finishes. The default FileSystem is used for all NameNodes. So only the first
one will succeed creating the
id file but the following will fail.
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