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https://issues.apache.org/jira/browse/HDFS-7434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14348879#comment-14348879
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Hudson commented on HDFS-7434:
------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk-Java8 #123 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/123/])
HDFS-7434. DatanodeID hashCode should not be mutable. Contributed by Daryn
Sharp. (kihwal: rev 722b4794693d8bad1dee0ca5c2f99030a08402f9)
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/protocol/DatanodeRegistration.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDatanodeProtocolRetryPolicy.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestComputeInvalidateWork.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockManager.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/DatanodeID.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
> DatanodeID hashCode should not be mutable
> -----------------------------------------
>
> Key: HDFS-7434
> URL: https://issues.apache.org/jira/browse/HDFS-7434
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 2.0.0-alpha, 3.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 2.7.0
>
> Attachments: HDFS-7434.patch
>
>
> Mutable hash codes may lead to orphaned instances in a collection. Instances
> must always be removed prior to modification of hash code values, and
> re-inserted. Although current code appears to do this, the mutable hash code
> is a landmine.
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