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Posted to common-issues@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2013/11/06 17:39:23 UTC

[jira] [Commented] (HADOOP-10085) CompositeService should allow adding services while being inited

    [ https://issues.apache.org/jira/browse/HADOOP-10085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13815013#comment-13815013 ] 

Karthik Kambatla commented on HADOOP-10085:
-------------------------------------------

There is some discussion on YARN-1374.

While it may be useful to allow adding services during init, we should do it in a way we don't introduce any races or non-determinism. It might make more sense to have a method different from the typical addService() to add a service during init.

> CompositeService should allow adding services while being inited
> ----------------------------------------------------------------
>
>                 Key: HADOOP-10085
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10085
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.2.0
>            Reporter: Karthik Kambatla
>
> We can add services to a CompositeService. However, if we do that while initing the CompositeService, it leads to a ConcurrentModificationException.
> It would be nice to allow adding services even during the init of CompositeService.



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