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https://issues.apache.org/jira/browse/HBASE-10001?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nicolas Liochon updated HBASE-10001:
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Resolution: Fixed
Release Note:
New coprocessor to help analysing the performances of the cluster. This
coprocessor drops all the writes on the server side, allowing the measure the
client and network performances without any limitation on the disk i/o. For a
table created like this: create 'usertable', {NAME => 'f1', VERSIONS => 1} .
You can then add the coprocessor with this command:
alter 'usertable', 'coprocessor' =>
'|org.apache.hadoop.hbase.tool.WriteSinkCoprocessor|'
Status: Resolved (was: Patch Available)
Committed, thanks for the review and the help, Anoop and Andrew.
> Add a coprocessor to help testing the performances without taking into
> account the i/o
> --------------------------------------------------------------------------------------
>
> Key: HBASE-10001
> URL: https://issues.apache.org/jira/browse/HBASE-10001
> Project: HBase
> Issue Type: Improvement
> Components: test
> Affects Versions: 0.98.0, 0.96.0, 0.94.13
> Reporter: Nicolas Liochon
> Assignee: Nicolas Liochon
> Priority: Minor
> Fix For: 0.98.0, 0.96.1, 0.94.15
>
> Attachments: 10001.v1.patch, 10001.v2.patch
>
>
> We have a mockup to test only the client. If we want to include the network,
> without beeing limited by the i/o, we don't have much tools.
> This coprocessor helps to test this.
> I put it in the main code as to make it usable without adding a jar...
> I don't think it's possible avoid the WAL writes in the coprocessors. It
> would be great to have it to simplify the test with any kind of client (i.e.
> w/o changing the durability).
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