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 <[email protected]> To: dev <[email protected]> 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 <[email protected]>: > On Sat, Feb 15, 2014 at 9:18 PM, lars hofhansl <[email protected]> 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) >
