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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-5338) Fix ContainerId fromString to correctly parse remotely allocated container Ids
Date Tue, 18 Oct 2016 21:53:59 GMT

     [ https://issues.apache.org/jira/browse/YARN-5338?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Wang updated YARN-5338:
------------------------------
    Fix Version/s:     (was: 2.9.0)

> Fix ContainerId fromString to correctly parse remotely allocated container Ids
> ------------------------------------------------------------------------------
>
>                 Key: YARN-5338
>                 URL: https://issues.apache.org/jira/browse/YARN-5338
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>         Attachments: YARN-5338.001.patch
>
>
> ContainerIds generated by the Local Scheduler on the NM monotonically decrements from
0 to distinguish them from incrementing containerIds generated by the RM.
> Since only the last 40 bits of the ContainerId are actually used, This patch ensures
that -1 containerId maps to 2 ^40 -1 and the toString and fromString correctly parses these
containerId.
> One implication of this is patch is that the containerId space is divided into 2. The
top half will be used by remotely allocated containers and the bottom half by those allocated
by the RM



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