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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-11064) UnsatisifedLinkError with hadoop 2.4 JARs on hadoop-2.6 due NativeCRC32 method changes
Date Wed, 24 Sep 2014 19:38:34 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-11064?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Nauroth updated HADOOP-11064:
-----------------------------------
    Attachment: HADOOP-11064.005.patch

I went ahead and prepared a patch that restores {{nativeVerifyChunkedSums}}, marked as deprecated.
 I'm uploading this as v5.  I also added a new test suite, {{TestNativeCrc32}}.  The main
purpose of this test suite was to exercise the old {{nativeVerifyChunkedSums}} code to help
protect us from removing it again.  While I was in here, I decided to make it a comprehensive
test suite that covers all of the {{NativeCrc32}} methods.

> 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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