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Posted to dev@chukwa.apache.org by "Ari Rabkin (JIRA)" <ji...@apache.org> on 2009/04/08 03:33:13 UTC

[jira] Commented: (CHUKWA-102) Provide streaming adapter

    [ https://issues.apache.org/jira/browse/CHUKWA-102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12696862#action_12696862 ] 

Ari Rabkin commented on CHUKWA-102:
-----------------------------------

I don't mind including code for it, but I think as a matter of policy this isn't a good idea.  Buffering everything on disk gives us a lot of tolerance for network failures and load spikes, at modest performance cost.   A direct pipe forces either Chukwa or the app to do explicit buffering and such.  

I believe there may be code for this floating around; Jerome and Eric wrote it for the prototype.  I'd be interested to see a performance comparison with file tailing.



> Provide streaming adapter
> -------------------------
>
>                 Key: CHUKWA-102
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-102
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>          Components: input tools
>            Reporter: Mac Yang
>
> Enable applications to send data directly to the agent without writing to disk first.

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