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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: [VOTE] The 1st hbase 0.94.17 release candidate is available for download
Date Sun, 16 Feb 2014 18:59:50 GMT
Running fully dist with Hadoop 1.2.1. Retried with 0.94.16 and got the same
exception from time to time. So I don't think this will impact the release
of 0.94.17. When my PE base line will be done, I will try the same with
0.96 + Hadoop 2.2.0 and see if I get the same exception.


2014-02-16 13:15 GMT-05:00 lars hofhansl <larsh@apache.org>:

> Hmm... Do you see this in 0.94.17 only (but not in 0.94.16 or earlier)?
> Are you running in local mode or with a real HDFS?
>
> -- Lars
>
> ----- Original Message -----
> From: Jean-Marc Spaggiari <jean-marc@spaggiari.org>
> To: dev <dev@hbase.apache.org>
> Cc:
> Sent: Sunday, February 16, 2014 5:29 AM
> Subject: Re: [VOTE] The 1st hbase 0.94.17 release candidate is available
> for download
>
> +1 to keep the default behavior. It's very nice to have to option to start
> more than one thread but I think for 0.94 we should keep default config.
> But also, it's not a big thing. So I will be only -0 for this in the RC. I
> agree that it's a bit surprising the see the 3 servers, but not that
> dramatic.
>
> Also I'm getting this once in a while when doing
> HFilePerformanceEvaluation:
>
> org.apache.hadoop.hbase.io.hfile.AbstractHFileReader$NotSeekedException:
> Not seeked to a key/value
>     at
>
> org.apache.hadoop.hbase.io.hfile.AbstractHFileReader$Scanner.assertSeeked(AbstractHFileReader.java:320)
>     at
>
> org.apache.hadoop.hbase.io.hfile.HFileReaderV2$ScannerV2.next(HFileReaderV2.java:690)
>     at
>
> org.apache.hadoop.hbase.HFilePerformanceEvaluation$GaussianRandomReadBenchmark.doRow(HFilePerformanceEvaluation.java:347)
>     at
>
> org.apache.hadoop.hbase.HFilePerformanceEvaluation$RowOrientedBenchmark.run(HFilePerformanceEvaluation.java:169)
>     at
>
> org.apache.hadoop.hbase.HFilePerformanceEvaluation.runBenchmark(HFilePerformanceEvaluation.java:121)
>     at
>
> org.apache.hadoop.hbase.HFilePerformanceEvaluation$3.run(HFilePerformanceEvaluation.java:97)
>     at java.lang.Thread.run(Thread.java:744)
>
> Occured 30% of the time, and only on GaussianRandomReadBenchmark.
>
> JM
>
>
>
> 2014-02-16 2:32 GMT-05:00 Andrew Purtell <apurtell@apache.org>:
>
> > On Sat, Feb 15, 2014 at 9:18 PM, lars hofhansl <larsh@apache.org> wrote:
> >
> > > Actually looks like this was by design in HBASE-10340/HBASE-9892.
> > > It spawns three local region server threads in local mode now, still
> just
> > > one process.
> > >
> > > I now think it's OK. What do other folks think? Should we set the
> default
> > > back to 1?
> > >
> >
> > I think unannounced things that violate the principle of least surprise
> are
> > bad. We should sink the RC and set the default back IMO.
> >
> >
> >
> > --
> > Best regards,
> >
> >    - Andy
> >
> > Problems worthy of attack prove their worth by hitting back. - Piet Hein
> > (via Tom White)
> >
>
>

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