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From "Ari Rabkin (JIRA)" <>
Subject [jira] Assigned: (CHUKWA-5) AdaptorId should be persistent even after an agent restart
Date Thu, 11 Jun 2009 19:21:07 GMT


Ari Rabkin reassigned CHUKWA-5:

    Assignee: Ari Rabkin  (was: Cheng)

> AdaptorId should be persistent even after an agent restart
> ----------------------------------------------------------
>                 Key: CHUKWA-5
>                 URL:
>             Project: Hadoop Chukwa
>          Issue Type: Bug
>          Components: data collection
>            Reporter: Jerome Boulon
>            Assignee: Ari Rabkin
> In case of agent restart, an adaptor may not get the same adaptorId. 
> 1)The adaptorId is sent back to the remote application after the Add command.
> Now, let suppose the agent dies and restarts. 
> Each new adaptor created from the checkpoint will now have another adaptorId
> . 
> If the remote application tries to stop/shutdown only using the adaptorId received in
step (1), the command may be sent to the wrong adaptor.
> if the adaptorId in for example an MD5 of the command line we don't need to save any
additional information inside the checkpoint.
> This will change the current API from int to String.

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