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https://issues.apache.org/jira/browse/HDFS-5651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13861518#comment-13861518
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Hudson commented on HDFS-5651:
------------------------------
SUCCESS: Integrated in Hadoop-Hdfs-trunk #1633 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/1633/])
HDFS-5651. Remove dfs.namenode.caching.enabled and improve CRM locking.
Contributed by Colin Patrick McCabe. (wang:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1555002)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/CacheReplicationMonitor.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeManager.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/CacheManager.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/CentralizedCacheManagement.apt.vm
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestFsDatasetCache.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestCacheDirectives.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestHAStateTransitions.java
> Remove dfs.namenode.caching.enabled and improve CRM locking
> -----------------------------------------------------------
>
> Key: HDFS-5651
> URL: https://issues.apache.org/jira/browse/HDFS-5651
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Affects Versions: 3.0.0
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Fix For: 3.0.0
>
> Attachments: HDFS-5651.001.patch, HDFS-5651.002.patch,
> HDFS-5651.003.patch, HDFS-5651.004.patch, HDFS-5651.006.patch,
> HDFS-5651.006.patch, HDFS-5651.008.patch, HDFS-5651.009.patch
>
>
> We can remove dfs.namenode.caching.enabled and simply always enable caching,
> similar to how we do with snapshots and other features. The main overhead is
> the size of the cachedBlocks GSet. However, we can simply make the size of
> this GSet configurable, and people who don't want caching can set it to a
> very small value.
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