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Posted to common-issues@hadoop.apache.org by "Kai Zheng (JIRA)" <ji...@apache.org> on 2015/09/01 10:20:46 UTC

[jira] [Commented] (HADOOP-11887) Introduce Intel ISA-L erasure coding library for the native support

    [ https://issues.apache.org/jira/browse/HADOOP-11887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14724960#comment-14724960 ] 

Kai Zheng commented on HADOOP-11887:
------------------------------------

Thanks Colin for this another round of review and very good comments. I addressed most of them and the left one is about how to invoke the unit test. I agree with you that current way isn't good as it links the test codes into the production binary. So I will wrap the test codes into an executable program as I previously did. The questions in this way are: 1) how to tell the situation in the POM file that ISA-L isn't available so the test shouldn't be invoked. Previously I came up a new tool for the purpose but it didn't work in your side. How about: we always run the test but in the test program we check if ISA-L is available or not, if not available it will exit (0) in the beginning, which wouldn't be regarded as failure. 2) The other problem is, how to come up the test program on Windows platform? It looks pretty heavy to write up a new native (test) program for Windows. Is it acceptable if we only support this test program for *nix platforms? Please help confirm these, thanks!

> Introduce Intel ISA-L erasure coding library for the native support
> -------------------------------------------------------------------
>
>                 Key: HADOOP-11887
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11887
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: io
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>         Attachments: HADOOP-11887-v1.patch, HADOOP-11887-v2.patch, HADOOP-11887-v3.patch, HADOOP-11887-v4.patch, HADOOP-11887-v5.patch, HADOOP-11887-v5.patch
>
>
> This is to introduce Intel ISA-L erasure coding library for the native support, via dynamic loading mechanism (dynamic module, like *.so in *nix and *.dll on Windows).



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