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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7137) Improve Bytes to accept byte buffers which don't allow us to directly access thier backed arrays
Date Wed, 14 Nov 2012 07:58:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13496929#comment-13496929
] 

Hadoop QA commented on HBASE-7137:
----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12553465/HBASE-7137-V3.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 3 new or modified
tests.

    {color:green}+1 hadoop2.0{color}.  The patch compiles against the hadoop 2.0 profile.

    {color:red}-1 javadoc{color}.  The javadoc tool appears to have generated 93 warning messages.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:red}-1 findbugs{color}.  The patch appears to introduce 17 new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

     {color:red}-1 core tests{color}.  The patch failed these unit tests:
                       org.apache.hadoop.hbase.coprocessor.TestRegionServerCoprocessorExceptionWithAbort
                  org.apache.hadoop.hbase.TestDrainingServer

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/3334//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3334//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3334//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3334//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3334//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3334//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3334//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/3334//console

This message is automatically generated.
                
> Improve Bytes to accept byte buffers which don't allow us to directly access thier backed
arrays
> ------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-7137
>                 URL: https://issues.apache.org/jira/browse/HBASE-7137
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Hiroshi Ikeda
>            Priority: Minor
>         Attachments: HBASE-7137.patch, HBASE-7137-V2.patch, HBASE-7137-V3.patch
>
>
> Inside HBase, it seems that there is the implicit assumption that byte buffers have backed
arrays and are not read-only, and we can freely call ByteBuffer.array() and arrayOffset()
without runtime exceptions.
> But some classes, including Bytes, are supposed to be used by users from outside of HBase,
and we should think the possibility that methods receive byte buffers which don't hold the
assumption.

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