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From "John Vines (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-2632) Research the performance of using compression on the walogs
Date Fri, 04 Apr 2014 17:48:15 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-2632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13960185#comment-13960185
] 

John Vines commented on ACCUMULO-2632:
--------------------------------------

Take note of the way the encryption stream handles the walogs in order to keep walog guarantees.
The first implementations had a particularly nasty bug where portions of data were buffered,
but the update thread had thought the data was synced. It is for this reason that you will
probably have to manually pad your data.

Unfortunately, it is also for this reason why I doubt compression would work, but lets see
the numbers we get.

> Research the performance of using compression on the walogs
> -----------------------------------------------------------
>
>                 Key: ACCUMULO-2632
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2632
>             Project: Accumulo
>          Issue Type: Task
>            Reporter: John McNamee
>            Assignee: John McNamee
>            Priority: Minor
>              Labels: performance
>
> Research the performance impact of using compression on data that is being written to
the walog.



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