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From "Bill Havanki (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-2789) Add a system stress test based on key/cell/row size
Date Fri, 23 May 2014 19:08:02 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-2789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14007554#comment-14007554
] 

Bill Havanki commented on ACCUMULO-2789:
----------------------------------------

Cut-and-paste error in {{WriteOptions.cqMax()}} - it's looking at the column family values,
not column qualifier. This prevents running when the qualifier is configured to be larger
than the family, among other issues.

I have some expanded scripts that make running these tests more like continuous. They can
go into a follow-on JIRA unless someone feels strongly that they should go here.

> Add a system stress test based on key/cell/row size
> ---------------------------------------------------
>
>                 Key: ACCUMULO-2789
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2789
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: test
>            Reporter: Sean Busbey
>            Assignee: William Slacum
>            Priority: Minor
>             Fix For: 1.5.2, 1.6.1, 1.7.0
>
>
> Add a system test that allows stress testing an Accumulo instance in the presence of
large cells and rows.
> The test should run a configurable number of ingest and reading clients and allow setting:
> * configurable range of overall key size
> * configurable range of key component sizes
> * configurable value size
> * configurable number of cells per row
> * optional use of isolation on server and/or client
> This kind of test would help us preemptively find issues like ACCUMULO-2671, ACCUMULO-201,
and the tserver memory crashes observed with some large mutation sizes while working on YCSB
support for Accumulo.
> It will also help us provide test examples of supporting large cardinality on rowids,
column families, and visibilities.



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