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https://issues.apache.org/jira/browse/HDFS-15879?focusedWorklogId=572619&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-572619
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ASF GitHub Bot logged work on HDFS-15879:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Mar/21 11:22
Start Date: 26/Mar/21 11:22
Worklog Time Spent: 10m
Work Description: tomscut commented on a change in pull request #2748:
URL: https://github.com/apache/hadoop/pull/2748#discussion_r602202963
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeManager.java
##########
@@ -201,8 +206,16 @@
*/
private final boolean useDfsNetworkTopology;
+ private static final String IP_PORT_SEPARATOR = ":";
+
@Nullable
private final SlowPeerTracker slowPeerTracker;
+ private static Set<Node> slowPeers = Sets.newConcurrentHashSet();
Review comment:
Sorry, I didn't see your reply just now. I will fix it soon.
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Issue Time Tracking
-------------------
Worklog Id: (was: 572619)
Time Spent: 3h 40m (was: 3.5h)
> Exclude slow nodes when choose targets for blocks
> -------------------------------------------------
>
> Key: HDFS-15879
> URL: https://issues.apache.org/jira/browse/HDFS-15879
> Project: Hadoop HDFS
> Issue Type: Wish
> Reporter: tomscut
> Assignee: tomscut
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3h 40m
> Remaining Estimate: 0h
>
> Previously, we have monitored the slow nodes, related to
> [HDFS-11194|https://issues.apache.org/jira/browse/HDFS-11194].
> We can use a thread to periodically collect these slow nodes into a set. Then
> use the set to filter out slow nodes when choose targets for blocks.
> This feature can be configured to be turned on when needed.
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