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https://issues.apache.org/jira/browse/HDFS-8213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14525325#comment-14525325
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Hudson commented on HDFS-8213:
------------------------------
SUCCESS: Integrated in Hadoop-Mapreduce-trunk #2131 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2131/])
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/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/tracing/TestTraceUtils.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/tracing/SpanReceiverHost.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/tracing/TestTracing.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/tracing/TestTracingShortCircuitLocalRead.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/main/java/org/apache/hadoop/hdfs/DFSClient.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.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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