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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-3171) speculative execution should not have default value on hadoop-default.xml bundled in the Hadoop JAR
Date Mon, 14 Apr 2008 13:29:04 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alejandro Abdelnur resolved HADOOP-3171.
----------------------------------------

    Resolution: Won't Fix

Closing this issue as it is not reflect the real problem, I'll open another one.

> speculative execution should not have default value on hadoop-default.xml bundled in
the Hadoop JAR
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-3171
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3171
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: conf
>    Affects Versions: 0.16.2
>         Environment: all
>            Reporter: Alejandro Abdelnur
>            Assignee: Arun C Murthy
>         Attachments: HADOOP-3171_20080410.patch
>
>
> Having a default value for speculative execution in the hadoop-default.xml bundled in
the Hadoop JAR file does not allow a cluster to control the default behavior. 
> *ON in hadoop-default.xml (current behavior)*
> * ON in JT hadoop-site.xml
>  * present in job.xml, job's value is used
>  * not-present in job.xml, ON is taken as default from the hadoop-default.xml present
in the client's JAR/conf (*)
> * ON FINAL in the JT hadoop-site.xml
>  * present or not present in the job.xml, ON is used
> * OFF in JT hadoop-site.xml
>  * present in job.xml, job's value is used
>  * not-present in job.xml, ON is taken as default from the hadoop-default.xml present
in the client's JAR/conf
> * OF FINAL in the JT hadoop-site.xml
>  * present or not present in the job.xml, OFF is used
> *OFF in hadoop-default.xml (not current behavior)*
> * ON in JT hadoop-site.xml
>  * present in job.xml, job's value is used
>  * not-present in job.xml, OFF is taken as default from the hadoop-default.xml present
in the client's JAR/conf (*)
> * ON FINAL in the JT hadoop-site.xml
>  * present or not present in the job.xml, ON is used
> * OFF in JT hadoop-site.xml
>  * present in job.xml, job's value is used
>  * not-present in job.xml, ON is taken as default from the hadoop-default.xml present
in the client's JAR/conf
> * OF FINAL in the JT hadoop-site.xml
>  * present or not present in the job.xml, OFF is used
> ---
> Still is desirable for the JT to have a default value. To avoid having to support 2 hadoop-default.xml
files, one for the JT and other for the clients, the easiest why is to remove it from the
hadoop-default.xml and have the default value in the code when getting the config property
(thing that may be already happening).

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