Akira Ajisaka created HDFS-15783: ------------------------------------ Summary: Speed up BlockPlacementPolicyRackFaultTolerant#verifyBlockPlacement Key: HDFS-15783 URL: https://issues.apache.org/jira/browse/HDFS-15783 Project: Hadoop HDFS Issue Type: Improvement Components: block placement Reporter: Akira Ajisaka
{code:java} Set<String> racks = new TreeSet<>(); for (DatanodeInfo dn : locs) { racks.add(dn.getNetworkLocation()); } return new BlockPlacementStatusDefault(racks.size(), numberOfReplicas, clusterMap.getNumOfRacks());{code} Here, HashMap should be used instead of TreeSet. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org