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https://issues.apache.org/jira/browse/HADOOP-10840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14064899#comment-14064899
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Hudson commented on HADOOP-10840:
---------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk #1834 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1834/])
HADOOP-10840. Fix OutOfMemoryError caused by metrics system in Azure File
System. Contributed by Shanyu Zhao. (cnauroth:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1611247)
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
*
/hadoop/common/trunk/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/NativeAzureFileSystem.java
*
/hadoop/common/trunk/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/metrics/AzureFileSystemMetricsSystem.java
*
/hadoop/common/trunk/hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azure/AzureBlobStorageTestAccount.java
*
/hadoop/common/trunk/hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azure/NativeAzureFileSystemBaseTest.java
> Fix OutOfMemoryError caused by metrics system in Azure File System
> ------------------------------------------------------------------
>
> Key: HADOOP-10840
> URL: https://issues.apache.org/jira/browse/HADOOP-10840
> Project: Hadoop Common
> Issue Type: Bug
> Components: metrics
> Affects Versions: 2.4.1
> Reporter: shanyu zhao
> Assignee: shanyu zhao
> Fix For: 3.0.0
>
> Attachments: HADOOP-10840.1.patch, HADOOP-10840.2.patch,
> HADOOP-10840.patch
>
>
> In Hadoop 2.x the Hadoop File System framework changed and no cache is
> implemented (refer to HADOOP-6356). This means for every WASB access, a new
> NativeAzureFileSystem is created, along which a Metrics source created and
> added to MetricsSystemImpl. Over time the sources accumulated, eating memory
> and causing Java OutOfMemoryError.
> The fix is to utilize the unregisterSource() method added to MetricsSystem in
> HADOOP-10839.
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