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https://issues.apache.org/jira/browse/IGNITE-679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ivan Veselovsky updated IGNITE-679:
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    Attachment: IGNITE-679--b.patch

Patch "b" provides lazy temp directory creation.

> 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: Vladimir Ozerov
>             Fix For: sprint-3
>
>         Attachments: IGNITE-679--a.patch, IGNITE-679--b.patch
>
>
> 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.
> WORKAROUND for old GG/Ignite builds: manually create file 
> /tmp/igniteshmem.lock of 0666 permission mode. This will make any user able 
> to get "rws" lock on that file.



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