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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8213) DFSClient should use hdfs.client.htrace HTrace configuration prefix rather than hadoop.htrace
Date Sat, 02 May 2015 15:03:14 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14525280#comment-14525280
] 

Hudson commented on HDFS-8213:
------------------------------

FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #172 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/172/])
HDFS-8213. DFSClient should use hdfs.client.htrace HTrace configuration prefix rather than
hadoop.htrace (cmccabe) (cmccabe: rev b82567d45507c50d2f28eff4bbdf3b1a69d4bf1b)
* hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/tracing/TraceUtils.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/tracing/TestTraceAdmin.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/tracing/TestTracing.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
* hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/tracing/TestTraceUtils.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/tracing/TestTracingShortCircuitLocalRead.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.java
* hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/tracing/SpanReceiverHost.java


> DFSClient should use hdfs.client.htrace HTrace configuration prefix rather than hadoop.htrace
> ---------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8213
>                 URL: https://issues.apache.org/jira/browse/HDFS-8213
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.7.0
>            Reporter: Billie Rinaldi
>            Assignee: Colin Patrick McCabe
>            Priority: Critical
>             Fix For: 2.7.1
>
>         Attachments: HDFS-8213.001.patch, HDFS-8213.002.patch
>
>
> DFSClient initializing SpanReceivers is a problem for Accumulo, which manages SpanReceivers
through its own configuration.  This results in the same receivers being registered multiple
times and spans being delivered more than once.  The documentation says SpanReceiverHost.getInstance
should be issued once per process, so there is no expectation that DFSClient should do this.



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