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Posted to dev@chukwa.apache.org by "Ari Rabkin (JIRA)" <ji...@apache.org> on 2010/01/03 20:44:54 UTC

[jira] Created: (CHUKWA-445) real-time buffer and display at Collector

real-time buffer and display at Collector
-----------------------------------------

                 Key: CHUKWA-445
                 URL: https://issues.apache.org/jira/browse/CHUKWA-445
             Project: Hadoop Chukwa
          Issue Type: New Feature
            Reporter: Ari Rabkin


It would be really cool to have the collector buffer a certain amount of received data, and make it available via the web interface.

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[jira] Updated: (CHUKWA-445) real-time buffer and display at Collector

Posted by "Ari Rabkin (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CHUKWA-445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ari Rabkin updated CHUKWA-445:
------------------------------

    Status: Patch Available  (was: Open)

I'd like to commit this.  Objections?  if it turns out not to be very useful, we can deprecate it and nobody will the wiser. :)

> real-time buffer and display at Collector
> -----------------------------------------
>
>                 Key: CHUKWA-445
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-445
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Ari Rabkin
>            Assignee: Ari Rabkin
>         Attachments: CHUKWA-445.patch
>
>
> It would be really cool to have the collector buffer a certain amount of received data, and make it available via the web interface.

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[jira] Assigned: (CHUKWA-445) real-time buffer and display at Collector

Posted by "Ari Rabkin (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CHUKWA-445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ari Rabkin reassigned CHUKWA-445:
---------------------------------

    Assignee: Ari Rabkin

> real-time buffer and display at Collector
> -----------------------------------------
>
>                 Key: CHUKWA-445
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-445
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Ari Rabkin
>            Assignee: Ari Rabkin
>         Attachments: CHUKWA-445.patch
>
>
> It would be really cool to have the collector buffer a certain amount of received data, and make it available via the web interface.

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[jira] Updated: (CHUKWA-445) real-time buffer and display at Collector

Posted by "Ari Rabkin (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CHUKWA-445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ari Rabkin updated CHUKWA-445:
------------------------------

    Status: Open  (was: Patch Available)

Want to test this at Berkeley before proposing to commit.

> real-time buffer and display at Collector
> -----------------------------------------
>
>                 Key: CHUKWA-445
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-445
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Ari Rabkin
>            Assignee: Ari Rabkin
>         Attachments: CHUKWA-445.patch
>
>
> It would be really cool to have the collector buffer a certain amount of received data, and make it available via the web interface.

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[jira] Updated: (CHUKWA-445) real-time buffer and display at Collector

Posted by "Ari Rabkin (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CHUKWA-445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ari Rabkin updated CHUKWA-445:
------------------------------

    Attachment: CHUKWA-445.patch

> real-time buffer and display at Collector
> -----------------------------------------
>
>                 Key: CHUKWA-445
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-445
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Ari Rabkin
>         Attachments: CHUKWA-445.patch
>
>
> It would be really cool to have the collector buffer a certain amount of received data, and make it available via the web interface.

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You can reply to this email to add a comment to the issue online.


[jira] Updated: (CHUKWA-445) real-time buffer and display at Collector

Posted by "Ari Rabkin (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CHUKWA-445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ari Rabkin updated CHUKWA-445:
------------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

Committed this to both branch and trunk.

> real-time buffer and display at Collector
> -----------------------------------------
>
>                 Key: CHUKWA-445
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-445
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Ari Rabkin
>            Assignee: Ari Rabkin
>         Attachments: CHUKWA-445.patch
>
>
> It would be really cool to have the collector buffer a certain amount of received data, and make it available via the web interface.

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[jira] Commented: (CHUKWA-445) real-time buffer and display at Collector

Posted by "Eric Yang (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/CHUKWA-445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12848351#action_12848351 ] 

Eric Yang commented on CHUKWA-445:
----------------------------------

+1 Looks good.

> real-time buffer and display at Collector
> -----------------------------------------
>
>                 Key: CHUKWA-445
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-445
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Ari Rabkin
>            Assignee: Ari Rabkin
>         Attachments: CHUKWA-445.patch
>
>
> It would be really cool to have the collector buffer a certain amount of received data, and make it available via the web interface.

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[jira] Commented: (CHUKWA-445) real-time buffer and display at Collector

Posted by "Ari Rabkin (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/CHUKWA-445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12848344#action_12848344 ] 

Ari Rabkin commented on CHUKWA-445:
-----------------------------------

Last call for objections here; I intend to commit this to both trunk and the 0.4 branch, barring comment.

> real-time buffer and display at Collector
> -----------------------------------------
>
>                 Key: CHUKWA-445
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-445
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Ari Rabkin
>            Assignee: Ari Rabkin
>         Attachments: CHUKWA-445.patch
>
>
> It would be really cool to have the collector buffer a certain amount of received data, and make it available via the web interface.

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[jira] Commented: (CHUKWA-445) real-time buffer and display at Collector

Posted by "Ari Rabkin (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/CHUKWA-445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12796022#action_12796022 ] 

Ari Rabkin commented on CHUKWA-445:
-----------------------------------

In small to midsize deployments, it would be nice for collectors to cache, say, the last megabyte of received log data, and make it visible via the web.

Intended implementation:  Have a web servlet coupled to a collector pipeline stage.
Keep a total of 1 MB of chunks. Keep an index by stream.  Let users browse, via the web, to an arbitrary stream and show all the data in that stream.

> real-time buffer and display at Collector
> -----------------------------------------
>
>                 Key: CHUKWA-445
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-445
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Ari Rabkin
>
> It would be really cool to have the collector buffer a certain amount of received data, and make it available via the web interface.

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You can reply to this email to add a comment to the issue online.


[jira] Updated: (CHUKWA-445) real-time buffer and display at Collector

Posted by "Ari Rabkin (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CHUKWA-445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ari Rabkin updated CHUKWA-445:
------------------------------

    Status: Patch Available  (was: Open)

A pipeline writer stage and a servlet to display the collected data.

> real-time buffer and display at Collector
> -----------------------------------------
>
>                 Key: CHUKWA-445
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-445
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Ari Rabkin
>         Attachments: CHUKWA-445.patch
>
>
> It would be really cool to have the collector buffer a certain amount of received data, and make it available via the web interface.

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[jira] Commented: (CHUKWA-445) real-time buffer and display at Collector

Posted by "Hudson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/CHUKWA-445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12850969#action_12850969 ] 

Hudson commented on CHUKWA-445:
-------------------------------

Integrated in Chukwa-trunk #330 (See [http://hudson.zones.apache.org/hudson/job/Chukwa-trunk/330/])
    

> real-time buffer and display at Collector
> -----------------------------------------
>
>                 Key: CHUKWA-445
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-445
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Ari Rabkin
>            Assignee: Ari Rabkin
>         Attachments: CHUKWA-445.patch
>
>
> It would be really cool to have the collector buffer a certain amount of received data, and make it available via the web interface.

-- 
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You can reply to this email to add a comment to the issue online.


[jira] Commented: (CHUKWA-445) real-time buffer and display at Collector

Posted by "Eric Yang (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/CHUKWA-445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12796038#action_12796038 ] 

Eric Yang commented on CHUKWA-445:
----------------------------------

I also have an implementation of this, but I made a queue buffering on the HICC side to keep the collector simple.  This could be accomplished by using:

new SocketDataLoader("all");  

Either implementation works.  Let's think this over.  What are the pros/cons of having the buffer in the collector?

> real-time buffer and display at Collector
> -----------------------------------------
>
>                 Key: CHUKWA-445
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-445
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Ari Rabkin
>            Assignee: Ari Rabkin
>         Attachments: CHUKWA-445.patch
>
>
> It would be really cool to have the collector buffer a certain amount of received data, and make it available via the web interface.

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[jira] Commented: (CHUKWA-445) real-time buffer and display at Collector

Posted by "Ari Rabkin (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/CHUKWA-445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12796041#action_12796041 ] 

Ari Rabkin commented on CHUKWA-445:
-----------------------------------

I think the tradeoff is whether you think collectors are heavily loaded or mostly idle. At Berkeley, they're mostly idle. So it seemed extravagant to add a whole 'nother process to display logs.  If your collectors are heavily loaded, it makes sense to pull this functionality onto the HICC server.



> real-time buffer and display at Collector
> -----------------------------------------
>
>                 Key: CHUKWA-445
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-445
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Ari Rabkin
>            Assignee: Ari Rabkin
>         Attachments: CHUKWA-445.patch
>
>
> It would be really cool to have the collector buffer a certain amount of received data, and make it available via the web interface.

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