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From "Eric Yang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CHUKWA-369) proposed reliability mechanism
Date Tue, 18 Aug 2009 21:03:14 GMT

    [ https://issues.apache.org/jira/browse/CHUKWA-369?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12744708#action_12744708
] 

Eric Yang commented on CHUKWA-369:
----------------------------------

I am still uncomfortable with this change because the proposed patch is suggesting a stateful
collector.  This means it will not scale well across many collectors.  AsyncAckSender doesn't
seem to be able to handle flip flapping in network connection well.

> proposed reliability mechanism
> ------------------------------
>
>                 Key: CHUKWA-369
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-369
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>          Components: data collection
>    Affects Versions: 0.3.0
>            Reporter: Ari Rabkin
>            Assignee: Ari Rabkin
>             Fix For: 0.3.0
>
>         Attachments: delayedAcks.patch
>
>
> We like to say that Chukwa is a system for reliable log collection. It isn't, quite,
since we don't handle collector crashes.  Here's a proposed reliability mechanism.

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