Dave Marion created HDFS-6376:
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Summary: Distcp data between two HA clusters requires another
configuration
Key: HDFS-6376
URL: https://issues.apache.org/jira/browse/HDFS-6376
Project: Hadoop HDFS
Issue Type: Bug
Components: federation
Affects Versions: 2.3.0
Environment: CDH 5.0 (Apache 2.3.0 + some patches)
Reporter: Dave Marion
User has to create a third set of configuration files for distcp when
transferring data between two HA clusters.
Consider the scenario in [1]. You cannot put all of the required properties in
core-site.xml and hdfs-site.xml for the client to resolve the location of both
active namenodes. If you do, then the datanodes from cluster A may join cluster
B. I can not find a configuration option that tells the datanodes to federate
blocks for only one of the clusters in the configuration.
[1]
http://mail-archives.apache.org/mod_mbox/hadoop-user/201404.mbox/%3CBAY172-W2133964E0C283968C161DD1520%40phx.gbl%3E
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