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Posted to hdfs-issues@hadoop.apache.org by "Ayush Saxena (JIRA)" <ji...@apache.org> on 2019/08/07 19:13:00 UTC
[jira] [Commented] (HDFS-14608) DataNode#DataTransfer should be
named
[ https://issues.apache.org/jira/browse/HDFS-14608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16902407#comment-16902407 ]
Ayush Saxena commented on HDFS-14608:
-------------------------------------
HDFS-14708 is tracking {{TestLargeBlockReport}}, Got broken recently. {{TestDFSZKFailoverController}} is known flaky test.
Committed to trunk.
Thanx [~elgoiri] for the contribution!!!
> DataNode#DataTransfer should be named
> -------------------------------------
>
> Key: HDFS-14608
> URL: https://issues.apache.org/jira/browse/HDFS-14608
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Íñigo Goiri
> Assignee: Íñigo Goiri
> Priority: Minor
> Fix For: 3.3.0
>
> Attachments: HDFS-14608.000.patch, HDFS-14608.001.patch
>
>
> Currently, the {{DataTransfer}} thread has no name and it just outputs the default {{toString()}}.
> This shows in the logs in jstack as something like:
> {code}
> 2019-06-25 11:01:01,211 INFO [org.apache.hadoop.hdfs.server.datanode.DataNode$DataTransfer@609ed67a] org.apache.hadoop.hdfs.server.datanode.DataNode: DataTransfer, at CO4AEAP0000C1AF:10010: Transmitted BP-1191059133-10.1.2.3-1458888702348:blk_1113379522_69745835 (numBytes=485214) to 10.1.2.3/10.1.2.3:10010
> {code}
> As this uses the {{Daemon}} class, the name is set based on:
> {code}
> public Daemon(Runnable runnable) {
> super(runnable);
> this.runnable = runnable;
> this.setName(((Object)runnable).toString());
> }
> {code}
> We should implement toString to at least have the name of the block being transfferred or something similar to what DataXceiver does (e.g., HDFS-3375).
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