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ASF GitHub Bot logged work on HDFS-16634: ----------------------------------------- Author: ASF GitHub Bot Created on: 18/Jun/22 05:05 Start Date: 18/Jun/22 05:05 Worklog Time Spent: 10m Work Description: tomscut commented on code in PR #4448: URL: https://github.com/apache/hadoop/pull/4448#discussion_r900698693 ########## hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/SlowPeerTracker.java: ########## @@ -80,7 +80,7 @@ public class SlowPeerTracker { * Number of nodes to include in JSON report. We will return nodes with * the highest number of votes from peers. */ - private final int maxNodesToReport; + private int maxNodesToReport; Review Comment: This field is almost always read-only and rarely changed, and for read-only operations, it doesn't have much impact. WDYT? Issue Time Tracking ------------------- Worklog Id: (was: 782584) Time Spent: 50m (was: 40m) > Dynamically adjust slow peer report size on JMX metrics > ------------------------------------------------------- > > Key: HDFS-16634 > URL: https://issues.apache.org/jira/browse/HDFS-16634 > Project: Hadoop HDFS > Issue Type: Task > Reporter: Viraj Jasani > Assignee: Viraj Jasani > Priority: Major > Labels: pull-request-available > Time Spent: 50m > Remaining Estimate: 0h > > On a busy cluster, sometimes it takes bit of time for deleted node(from the > cluster)'s "slow node report" to get removed from slow peer json report on > Namenode JMX metrics. In the meantime, user should be able to browse through > more entries in the report by adjusting i.e. reconfiguring > "dfs.datanode.max.nodes.to.report" so that the list size can be adjusted > without user having to bounce active Namenode just for this purpose. -- This message was sent by Atlassian Jira (v8.20.7#820007) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org