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HBase, mail # dev - precommit exception when opening HFiles.


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Re: precommit exception when opening HFiles.
Andrew Purtell 2013-01-16, 23:23
I think Stack was suggesting if you have a theory you can test it. :-)
On Wed, Jan 16, 2013 at 3:20 PM, Ted Yu <[EMAIL PROTECTED]> wrote:

> TestLocalHBaseCluster fails quite often in PreCommit builds
> e.g.
> https://builds.apache.org/job/PreCommit-HBASE-Build/4056/testReport/
>
> Cheers
>
> On Wed, Jan 16, 2013 at 3:17 PM, Stack <[EMAIL PROTECTED]> wrote:
>
> > Easy enough to test by running a patch by hadoopqa?
>  TestLocalHBaseCluster
> > is failing w/ the above most of the time?
> >
> > Good on you,
> > St.Ack
> >
> >
> > On Wed, Jan 16, 2013 at 3:07 PM, Ted Yu <[EMAIL PROTECTED]> wrote:
> >
> > > For TestLocalHBaseCluster test failure, the only explanation I can come
> > up
> > > with is that in deserializeFromWritable(), majorVersion was <= 1. This
> > > would result in comparatorClassName not assigned (to concrete
> comparator
> > > classname) due to the following check (line 366):
> > >
> > >     if (majorVersion > 1) {
> > >
> > > Cheers
> > >
> > > On Wed, Jan 16, 2013 at 3:02 PM, lars hofhansl <[EMAIL PROTECTED]>
> wrote:
> > >
> > > > In some of the failed test logs in trunk precommit I see these.
> > > > Look bad. Is that something to worry about?
> > > >
> > > >
> > > > java.io.IOException: java.io.IOException: java.io.IOException:
> > > > java.lang.InstantiationException: org.apache.hadoop.io.RawComparator
> > > >     at
> > > >
> > >
> >
> org.apache.hadoop.hbase.regionserver.HRegion.initializeRegionInternals(HRegion.java:612)
> > > >     at
> > > >
> > org.apache.hadoop.hbase.regionserver.HRegion.initialize(HRegion.java:533)
> > > >     at
> > > >
> > >
> >
> org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:4086)
> > > >     at
> > > >
> > >
> >
> org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:4036)
> > > >     at
> > > >
> > >
> >
> org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.openRegion(OpenRegionHandler.java:427)
> > > >     at
> > > >
> > >
> >
> org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.process(OpenRegionHandler.java:130)
> > > >     at
> > > >
> > org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:202)
> > > >     at
> > > >
> > >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> > > >     at
> > > >
> > >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> > > >     at java.lang.Thread.run(Thread.java:662)
> > > > Caused by: java.io.IOException: java.io.IOException:
> > > > java.lang.InstantiationException: org.apache.hadoop.io.RawComparator
> > > >     at
> > > >
> > >
> >
> org.apache.hadoop.hbase.regionserver.HStore.loadStoreFiles(HStore.java:450)
> > > >     at
> > > org.apache.hadoop.hbase.regionserver.HStore.<init>(HStore.java:215)
> > > >     at
> > > >
> > >
> >
> org.apache.hadoop.hbase.regionserver.HRegion.instantiateHStore(HRegion.java:3060)
> > > >     at
> > > > org.apache.hadoop.hbase.regionserver.HRegion$1.call(HRegion.java:585)
> > > >     at
> > > > org.apache.hadoop.hbase.regionserver.HRegion$1.call(HRegion.java:583)
> > > >     at
> > java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> > > >     at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> > > >     at
> > > >
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
> > > >     at
> > java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> > > >     at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> > > >     ... 3 more
> > > > Caused by: java.io.IOException: java.lang.InstantiationException:
> > > > org.apache.hadoop.io.RawComparator
> > > >     at
> > > >
> > >
> >
> org.apache.hadoop.hbase.io.hfile.FixedFileTrailer.createComparator(FixedFileTrailer.java:607)
> > > >     at
> > > >
> > >
> >
> org.apache.hadoop.hbase.io.hfile.FixedFileTrailer.createComparator(FixedFileTrailer.java:615)
> > > >     at
> > > >
> > >
> >
> org.apache.hadoop.hbase.io.hfile.HFileReaderV2.<init>(HFileReaderV2.java:115)

Best regards,

   - Andy

Problems worthy of attack prove their worth by hitting back. - Piet Hein
(via Tom White)