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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8968) add flag to disable completely version check in the TaskTracker and DataNode
Date Thu, 25 Oct 2012 19:15:12 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Alejandro Abdelnur updated HADOOP-8968:

    Attachment: HADOOP-8968.patch

Sure, Eli, thanks for the feedback.

Updated patch with following changes:

* renamed 'no.check' to 'skip.check'
* When 'skip.check' is TRUE we log both version and revision
* removed 'not' from comment

Eli, on your first bullet, about asserting an invalid build. I'd to leave it like it is, without
the build check; this allows experimental patches to be put to try something. Also, depending
on the SCM you are using (ie SVN or GIT) defining an invalid build may be difficult.
> add flag to disable completely version check in the TaskTracker and DataNode
> ----------------------------------------------------------------------------
>                 Key: HADOOP-8968
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8968
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 1.1.0
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>             Fix For: 1.2.0
>         Attachments: HADOOP-8968.patch, HADOOP-8968.patch, HADOOP-8968.patch
> The current logic in the TaskTracker and the DataNode to allow a relax version check
with the JobTracker and NameNode works only if the versions of Hadoop are exactly the same.
> We should add a switch to disable version checking completely, to enable rolling upgrades
between compatible versions (typically patch versions).

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