[ https://issues.apache.org/jira/browse/HADOOP-11064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14146841#comment-14146841
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Hadoop QA commented on HADOOP-11064:
------------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12671029/HADOOP-11064.005.patch
against trunk revision 9fa5a89.
{color:green}+1 @author{color}. The patch does not contain any @author tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new or modified
test files.
{color:red}-1 javac{color}. The applied patch generated 1265 javac compiler warnings
(more than the trunk's current 1263 warnings).
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with eclipse:eclipse.
{color:red}-1 findbugs{color}. The patch appears to introduce 1 new Findbugs (version
2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase the total number
of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in hadoop-common-project/hadoop-common.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/4801//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HADOOP-Build/4801//artifact/PreCommit-HADOOP-Build-patchprocess/newPatchFindbugsWarningshadoop-common.html
Javac warnings: https://builds.apache.org/job/PreCommit-HADOOP-Build/4801//artifact/PreCommit-HADOOP-Build-patchprocess/diffJavacWarnings.txt
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/4801//console
This message is automatically generated.
> UnsatisifedLinkError with hadoop 2.4 JARs on hadoop-2.6 due NativeCRC32 method changes
> --------------------------------------------------------------------------------------
>
> Key: HADOOP-11064
> URL: https://issues.apache.org/jira/browse/HADOOP-11064
> Project: Hadoop Common
> Issue Type: Bug
> Components: native
> Affects Versions: 2.6.0
> Environment: Hadoop 2.6 cluster, trying to run code containing hadoop 2.4 JARs
> Reporter: Steve Loughran
> Assignee: Colin Patrick McCabe
> Priority: Blocker
> Attachments: HADOOP-11064.001.patch, HADOOP-11064.002.patch, HADOOP-11064.003.patch,
HADOOP-11064.004.patch, HADOOP-11064.005.patch
>
>
> The private native method names and signatures in {{NativeCrc32}} were changed in HDFS-6561
... as a result hadoop-common-2.4 JARs get unsatisifed link errors when they try to perform
checksums.
> This essentially stops Hadoop 2.4 applications running on Hadoop 2.6 unless rebuilt and
repackaged with the hadoop- 2.6 JARs
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