Vinayakumar B created HDFS-9411: ----------------------------------- 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)