[
https://issues.apache.org/jira/browse/HDFS-4797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13696784#comment-13696784
]
Hudson commented on HDFS-4797:
------------------------------
Integrated in Hadoop-Hdfs-trunk #1447 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/1447/])
HDFS-4797. BlockScanInfo does not override equals(..) and hashCode()
consistently. (Revision 1498202)
Result = FAILURE
szetszwo :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1498202
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/server/datanode/BlockPoolSliceScanner.java
> BlockScanInfo does not override equals(..) and hashCode() consistently
> ----------------------------------------------------------------------
>
> Key: HDFS-4797
> URL: https://issues.apache.org/jira/browse/HDFS-4797
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Priority: Minor
> Fix For: 2.2.0
>
> Attachments: h4797_20130513b.patch, h4797_20130513.patch
>
>
> In the code below, equals(..) compares lastScanTime but hashCode() is
> computed using block ID. Therefore, it could have two BlockScanInfo objects
> which are equal but have two different hash codes.
> {code}
> //BlockScanInfo
> @Override
> public int hashCode() {
> return block.hashCode();
> }
>
> @Override
> public boolean equals(Object other) {
> return other instanceof BlockScanInfo &&
> compareTo((BlockScanInfo)other) == 0;
> }
> {code}
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