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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11790) leveldb usage should be disabled by default or smarter about platforms
Date Mon, 31 Jul 2017 21:59:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16108041#comment-16108041
] 

Andrew Wang commented on HADOOP-11790:
--------------------------------------

Can this be targeted at a future 3.x release, or does it need to be in beta?

What is our best guess at how long it would take to migrate to RocksDB?

My guess is that this is backwards compatible and would be more than 1.5 months of work (how
far we are from the mid-Sept target release date), so I don't want to hold the beta1 release
for this. I can add a 3.0.0 fix version if you'd like to retarget this at GA, or we can lower
the priority.

> leveldb usage should be disabled by default or smarter about platforms
> ----------------------------------------------------------------------
>
>                 Key: HADOOP-11790
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11790
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.6.0, 3.0.0-alpha3
>         Environment: * any non-x86
> * any OS that isn't Linux, OSX, Windows
>            Reporter: Ayappan
>            Priority: Blocker
>
> The leveldbjni artifact in maven repository has been built for only x86 architecture.
Due to which some of the testcases are failing in PowerPC. The leveldbjni community has no
plans to support other platforms [ https://github.com/fusesource/leveldbjni/issues/54 ]. Right
now , the approach is we need to locally built leveldbjni prior to running hadoop testcases.
Pushing a PowerPC-specific leveldbjni artifact in central maven repository and making pom.xml
to pickup it up while running in PowerPC is another option but i don't know whether this is
a suitable one . Any other alternative/solution is there ?



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