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From "Ivan Veselovsky (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-679) shmem communication does not work if Ignite node and Hadoop client running on behalf of different users
Date Fri, 03 Apr 2015 18:37:52 GMT
Ivan Veselovsky created IGNITE-679:
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             Summary: shmem communication does not work if Ignite node and Hadoop client running
on behalf of different users
                 Key: IGNITE-679
                 URL: https://issues.apache.org/jira/browse/IGNITE-679
             Project: Ignite
          Issue Type: Bug
          Components: hadoop
    Affects Versions: sprint-3
            Reporter: Ivan Veselovsky
            Assignee: Ivan Veselovsky
             Fix For: sprint-3


problem is that shmem native library loader uses global file lock /tmp/igniteshmem.lock .
Upon Ignite node start this lock is created by the Ignite service user ("ignite"). When client
starts, it tries to get "rws" lock on this file, but fails because that file is typically
not writable for the client user. This permanently prevents the client from loading the native
shmem library, and, ans a consequence, shmem communication from working.



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