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From "Keith Turner (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ACCUMULO-2123) Lower default for tfile.fs.input.buffer.size
Date Thu, 02 Jan 2014 18:45:55 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-2123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Keith Turner updated ACCUMULO-2123:
-----------------------------------

    Affects Version/s: 1.4.0
             Assignee: Keith Turner

> Lower default for tfile.fs.input.buffer.size
> --------------------------------------------
>
>                 Key: ACCUMULO-2123
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2123
>             Project: Accumulo
>          Issue Type: Sub-task
>    Affects Versions: 1.4.0
>            Reporter: Keith Turner
>            Assignee: Keith Turner
>             Fix For: 1.6.0
>
>
> Concurrent RFile readers (created by concurrent scans and/or deepCopied iterators) can
use a lot of memory when reading from compressed rfiles.  To address this issue, the default
for tfile.fs.input.buffer.size was lowered from 256k to 32k.  The rational for 32k is provided
in comments in ACCUMULO-1534.  The commits for this change were made against ACCUMULO-1534.
 This ticket was created to record that this work was done for 1.6.0.



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