[ https://issues.apache.org/jira/browse/HDFS-9411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vinayakumar B updated HDFS-9411: -------------------------------- Attachment: HDFS_ZoneLabels-16112015.pdf Attaching the initial design doc. Please take a look. Feedbacks are welcome. -thanks Vinay > 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 > Attachments: HDFS_ZoneLabels-16112015.pdf > > > 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)