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HBase >> mail # user >> Scan performance


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Re: Scan performance
Should we expect same kind of performances difference with get between
addColumn(CF) and addColumn(CF, C)?

Might worse to give it a try...
2013/8/8 Viral Bajaria <[EMAIL PROTECTED]>

> Hi Tony,
>
> I know it's been a while and am not sure if you already figured out the
> issue but try taking at HBASE-9079 and see if it's similar to the problem
> that you are facing with FuzzyRowFilter. I have attached a patch to that
> ticket too and have verified that it fixed things for me in production.
>
> Thanks,
> Viral
>
> On Tue, Jul 16, 2013 at 8:07 PM, Tony Dean <[EMAIL PROTECTED]> wrote:
>
> > I was able to test scan performance with 0.94.9 with around 6000 rows X
> 40
> > columns and FuzzyRowFilter gave us 2-4 times better performance.  I was
> > able to test this offline without any problems.  However, once I turned
> it
> > on in our development cluster, we noticed that with some row keys that
> > should have matched were not matching.  After reverting back to
> > SingleColumnValueFilter the cases that were failing, began to work again.
> >  We thought that the anomaly was due to certain data in row key, but we
> > managed to create identical row keys in a different table and see the
> scan
> > work.  So, bottom line I can't explain this behavior.  Has anyone seen
> this
> > behavior and does anyone have debugging tips?
> >
> > Thanks.
> >
>
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB