Kihwal Lee created HDFS-4861: -------------------------------- Summary: BlockPlacementPolicyDefault does not consider decommissioning nodes Key: HDFS-4861 URL: https://issues.apache.org/jira/browse/HDFS-4861 Project: Hadoop HDFS Issue Type: Bug Components: namenode Affects Versions: 0.23.7, 2.0.5-beta Reporter: Kihwal Lee
getMaxNodesPerRack() calculates the max replicas/rack like this: {code} int maxNodesPerRack = (totalNumOfReplicas-1)/clusterMap.getNumOfRacks()+2; {code} Since this does not consider the racks that are being decommissioned and the decommissioning state is only checked later in isGoodTarget(), certain blocks are not replicated even when there are many racks and nodes. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira