Vinayakumar B created HDFS-9411:
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Summary: HDFS ZoneLabel support
Key: HDFS-9411
URL: https://issues.apache.org/jira/browse/HDFS-9411
Project: Hadoop HDFS
Issue Type: New Feature
Reporter: Vinayakumar B
Assignee: Vinayakumar B
HDFS currently stores data blocks on different datanodes chosen by
BlockPlacement Policy. These datanodes are random within the
scope(local-rack/different-rack/nodegroup) of network topology.
In Multi-tenant (Tenant can be user/service) scenario, blocks of any tenant can
be on any datanodes.
Based on applications of different tenant, sometimes datanode might get busy
making the other tenant's application to slow down. It would be better if
admin's have a provision to logically divide the cluster among multi-tenants.
ZONE_LABELS can logically divide the cluster datanodes into multiple Zones.
High level design doc to follow soon.
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