[ https://issues.apache.org/jira/browse/HDFS-14220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Amithsha updated HDFS-14220: ---------------------------- Description: By default, Replica placement per rack will be taken care by BlockPlacementPolicyDefault.java . With 2 if conditions # numOfRacks <1 # numOfRacks > 1 and the placement will happen as 1 on localrack, 2 on remote rack. If a user needs max of 1 replica per rack then BlockPlacementPolicyDefault.java modification is needed instead we can add a property to specify the placement policy and replica value per rack. was: By default, Replica placement per rack will be taken care by BlockPlacementPolicyDefault.java . With 2 if conditions # numOfRacks <1 # numOfRacks > 1 and the placement will happen as 1 on localrack, 2 on remote rack. If a user needs max of 1 replica per rack then he need to modify the BlockPlacementPolicyDefault.java > Enable Replica Placement Value Per Rack > --------------------------------------- > > Key: HDFS-14220 > URL: https://issues.apache.org/jira/browse/HDFS-14220 > Project: Hadoop HDFS > Issue Type: New Feature > Components: datanode > Affects Versions: 2.7.1 > Reporter: Amithsha > Priority: Trivial > > By default, Replica placement per rack will be taken care by > BlockPlacementPolicyDefault.java . > With 2 if conditions > # numOfRacks <1 > # numOfRacks > 1 > and the placement will happen as 1 on localrack, 2 on remote rack. > If a user needs max of 1 replica per rack then > BlockPlacementPolicyDefault.java modification is needed instead we can add a > property to specify the placement policy and replica value per rack. > > -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org