hadoop-mapreduce-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4260) Investigate use of JobObject to spawn tasks on Windows
Date Tue, 15 May 2012 23:21:08 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bikas Saha updated MAPREDUCE-4260:
----------------------------------

    Description: Currently, the Windows version spawns the task as a normal cmd shell from
which other downstream exe's are spawned. However, this is not bullet proof because if an
intermediate process exits before its child exits, then the parent child process tree relationship
cannot be constructed. Windows has a concept of JobObject that is similar to the setsid behavior
used in Linux. The initial spawned task could be launched within its JobObject. Thereafter,
process termination, memory management etc could be operated on the JobObject.
       Assignee: Bikas Saha
    
> Investigate use of JobObject to spawn tasks on Windows
> ------------------------------------------------------
>
>                 Key: MAPREDUCE-4260
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4260
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 1.0.0
>            Reporter: Bikas Saha
>            Assignee: Bikas Saha
>
> Currently, the Windows version spawns the task as a normal cmd shell from which other
downstream exe's are spawned. However, this is not bullet proof because if an intermediate
process exits before its child exits, then the parent child process tree relationship cannot
be constructed. Windows has a concept of JobObject that is similar to the setsid behavior
used in Linux. The initial spawned task could be launched within its JobObject. Thereafter,
process termination, memory management etc could be operated on the JobObject.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message