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https://issues.apache.org/jira/browse/HDFS-4350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13569750#comment-13569750
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Hudson commented on HDFS-4350:
------------------------------
Integrated in Hadoop-Yarn-trunk #116 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk/116/])
HDFS-4350. Make enabling of stale marking on read and write paths
independent. Contributed by Andrew Wang. (Revision 1441819)
Result = SUCCESS
suresh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1441819
Files :
* /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/DFSUtil.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/blockmanagement/HeartbeatManager.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/test/java/org/apache/hadoop/hdfs/TestGetBlocks.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReplicationPolicy.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/metrics/TestNameNodeMetrics.java
> Make enabling of stale marking on read and write paths independent
> ------------------------------------------------------------------
>
> Key: HDFS-4350
> URL: https://issues.apache.org/jira/browse/HDFS-4350
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Andrew Wang
> Assignee: Andrew Wang
> Fix For: 1.2.0, 2.0.3-alpha
>
> Attachments: hdfs-4350-1.patch, hdfs-4350-2.patch, hdfs-4350-3.patch,
> hdfs-4350-4.patch, hdfs-4350-5.patch, hdfs-4350-6.patch, hdfs-4350-7.patch,
> hdfs-4350-branch-1-1.patch, hdfs-4350-branch-1-2.patch,
> hdfs-4350-branch-1-3.patch, hdfs-4350.txt
>
>
> Marking of datanodes as stale for the read and write path was introduced in
> HDFS-3703 and HDFS-3912 respectively. This is enabled using two new keys,
> {{DFS_NAMENODE_CHECK_STALE_DATANODE_KEY}} and
> {{DFS_NAMENODE_AVOID_STALE_DATANODE_FOR_WRITE_KEY}}. However, there currently
> exists a dependency, since you cannot enable write marking without also
> enabling read marking, since the first key enables both checking of staleness
> and read marking.
> I propose renaming the first key to
> {{DFS_NAMENODE_AVOID_STALE_DATANODE_FOR_READ_KEY}}, and make checking enabled
> if either of the keys are set. This will allow read and write marking to be
> enabled independently.
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