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From "Phabricator (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4908) HBase cluster test tool (port from 0.89-fb)
Date Thu, 01 Dec 2011 00:09:41 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13160490#comment-13160490
] 

Phabricator commented on HBASE-4908:
------------------------------------

nspiegelberg has commented on the revision "[jira] [HBASE-4908] HBase cluster test tool (port
from 0.89-fb)".

  @stack : We should have a distinction:

  PerformanceEvaluation - meant to get an idea of the performance of your system setup.  Able
to find performance regressions or understand theoretical performance gains of datapath changes

  Load Tester - meant to provide deterministic, long-running load on a system.  Allows for
large scale verification to catch race conditions resulting from logic error or process failure
(in a distributed system setting).

REVISION DETAIL
  https://reviews.facebook.net/D549

                
> HBase cluster test tool (port from 0.89-fb)
> -------------------------------------------
>
>                 Key: HBASE-4908
>                 URL: https://issues.apache.org/jira/browse/HBASE-4908
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Mikhail Bautin
>            Assignee: Mikhail Bautin
>         Attachments: D549.1.patch
>
>
> Porting one of our HBase cluster test tools (a single-process multi-threaded load generator
and verifier) from 0.89-fb to trunk.
> I cleaned up the code a bit compared to what's in 0.89-fb, and discovered that it has
some features that I have not tried yet (some kind of a kill test, and some way to run HBase
as multiple processes on one machine).
> The main utility of this piece of code for us has been the HBaseClusterTest command-line
tool (called HBaseTest in 0.89-fb), which we usually invoke as a load test in our five-node
dev cluster testing, e.g.:
> hbase org.apache.hadoop.hbase.manual.HBaseTest -load 1000000000:50:100:20 -tn load_test
-read 1:1000000000:50:20 -zk <zk_quorum> -bloom ROWCOL -compression GZIP
> I will be using this code to load-test the delta encoding patch and making fixes, but
I am submitting the patch for early feedback. I will probably try out its other functionality
and comment on how it works.

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