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From Daniel Gómez Ferro (JIRA) <j...@apache.org>
Subject [jira] [Commented] (S4-91) Runtime isolation
Date Thu, 07 Mar 2013 16:34:12 GMT

    [ https://issues.apache.org/jira/browse/S4-91?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13596033#comment-13596033
] 

Daniel Gómez Ferro commented on S4-91:
--------------------------------------

For checking that the PEs are running exclusively on some nodes you could write some information
to ZK when the PEs process the events, for example the partitionId that processed it. Then,
at the end of the test, check that only the expected number of partitions ran each PE.

As for the remote emitters, the problem is that you don't know if the PEs are exclusive or
how they are partitioned, you'll need to store this information in ZK probably.

Having an update this weekend would be great!
                
> Runtime isolation
> -----------------
>
>                 Key: S4-91
>                 URL: https://issues.apache.org/jira/browse/S4-91
>             Project: Apache S4
>          Issue Type: Task
>    Affects Versions: 0.6
>            Reporter: Aimee Cheng
>            Assignee: Aimee Cheng
>             Fix For: 0.6
>
>         Attachments: 0001-runtime-isolation-implement.patch
>
>
> We would like to use runtime isolation. PEs from the same APP can split to several sub-sets
and run in different JVM processes, so that we might get some benefit from it, such as isolating
the PEs which cost a lot of resources, easier to find out the PE with problem. 

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