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From "Suneel Marthi (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MAHOUT-1767) Unable to run tests on H2O enigne in distributed mode
Date Mon, 26 Dec 2016 06:45:58 GMT

     [ https://issues.apache.org/jira/browse/MAHOUT-1767?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Suneel Marthi resolved MAHOUT-1767.
-----------------------------------
    Resolution: Won't Fix

> Unable to run tests on H2O enigne in distributed mode
> -----------------------------------------------------
>
>                 Key: MAHOUT-1767
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1767
>             Project: Mahout
>          Issue Type: Bug
>          Components: Documentation
>    Affects Versions: 0.11.0
>            Reporter: Dmitry Yaraev
>            Assignee: Andrew Palumbo
>             Fix For: 1.0.0
>
>
> When one follows the instructions located in [README.md for H2O module|https://github.com/apache/mahout/blob/master/h2o/README.md]
and tries to run tests in the distributed mode, tests run only in the local mode. There are
three steps in the instruction:
> # {code}
> host-1:~/mahout$ ./bin/mahout h2o-node
> ...
> .. INFO: Cloud of size 1 formed [/W.X.Y.Z:54321]
> {code}
> # {code}
> host-2:~/mahout$ ./bin/mahout h2o-node
> ...
> .. INFO: Cloud of size 2 formed [/A.B.C.D:54322]
> {code}
> # {code}
> host-N:~/mahout/h2o$ mvn test
> ...
> .. INFO: Cloud of size 3 formed [/E.F.G.H:54323]
> ...
> All tests passed.
> ...
> host-N:~/mahout/h2o$
> {code}
> First two steps are for executing worker nodes. The last one is for executing tests.
According to the instruction, after launching tests one more worker is started. And it should
join to the same cloud which other worker nodes forms. But it does joined them because it
has a different cloud name (or _masterURL_ in terms of the code). If you look in the code,
you can find the following:
> {code:title=DistributedH2OSuite.scala}
> ...
> mahoutCtx = mahoutH2OContext("mah2out" + System.currentTimeMillis())
> ...
> {code}
> After we removed the code which appends current time to cloud name, it started to work.



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