Erik Krogen created HDFS-14979:
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Summary: [Observer Node] Balancer should submit getBlocks to
Observer Node when possible
Key: HDFS-14979
URL: https://issues.apache.org/jira/browse/HDFS-14979
Project: Hadoop HDFS
Issue Type: Improvement
Components: balancer & mover, hdfs
Reporter: Erik Krogen
Assignee: Erik Krogen
In HDFS-14162, we made it so that the Balancer could function when
{{ObserverReadProxyProvider}} was in use. However, the Balancer would still
read from the active NameNode, because {{getBlocks}} wasn't annotated as
{{@ReadOnly}}. This task is to enable the Balancer to actually read from the
Observer Node to alleviate load from the active NameNode.
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