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From "Yongkun Wang (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLUME-640) Send acks without getting masters involved
Date Wed, 05 Oct 2011 05:24:34 GMT

     [ https://issues.apache.org/jira/browse/FLUME-640?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yongkun Wang updated FLUME-640:
-------------------------------

    Attachment: flume-masterless-ack-for-community.pdf
                flume-0.9.3-cdh3u0-masterless-ack.patch.README
                flume-0.9.3-cdh3u0-masterless-ack.patch

patch, README, and slides about the design of masterless ACK
                
> Send acks without getting masters involved
> ------------------------------------------
>
>                 Key: FLUME-640
>                 URL: https://issues.apache.org/jira/browse/FLUME-640
>             Project: Flume
>          Issue Type: Improvement
>    Affects Versions: v0.9.3
>            Reporter: Disabled imported user
>              Labels: acknowledgement
>         Attachments: flume-0.9.3-cdh3u0-masterless-ack.patch, flume-0.9.3-cdh3u0-masterless-ack.patch.README,
flume-masterless-ack-for-community.pdf
>
>
> Currently the acks (acknowledgement) from the collector are sent back via the master(s).
In case the master is down, the acks will be lost. It seems that the even the multi masters
cannot handle this single-point-failure issue.
> A re-design of sending the acks back without getting the master involved will be very
beneficial. The single-point-failure can be removed to some extent, and the efficiency of
the acks will also be improved since the master is not a bottleneck any more.

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