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From "Billy Pearson" <sa...@pearsonwholesale.com>
Subject Re: hbase 0.20.0 Release Candidate 2 available for download
Date Tue, 18 Aug 2009 17:58:24 GMT
testing RC2

found
2009-08-18 12:54:16,572 FATAL 
org.apache.hadoop.hbase.regionserver.MemStoreFlusher: Replay of hlog 
required. Forcing server shutdown
org.apache.hadoop.hbase.DroppedSnapshotException: region: 
webdata,http:\x2F\x2Fanaal-genomen.isporno.nl\x2F,1250569930062
        at 
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:950)
        at 
org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:843)
        at 
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:241)
        at 
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.run(MemStoreFlusher.java:149)
Caused by: java.io.IOException: Key length 183108 > 65536
        at 
org.apache.hadoop.hbase.io.hfile.HFile$Writer.checkKey(HFile.java:511)
        at 
org.apache.hadoop.hbase.io.hfile.HFile$Writer.append(HFile.java:479)
        at 
org.apache.hadoop.hbase.io.hfile.HFile$Writer.append(HFile.java:447)
        at 
org.apache.hadoop.hbase.regionserver.Store.internalFlushCache(Store.java:525)
        at 
org.apache.hadoop.hbase.regionserver.Store.flushCache(Store.java:489)
        at 
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:935)
        ... 3 more


looks like from a mr job we allow keys larger then 65536 to be processed but 
when the memcache flush happends we kill the server should the client not 
fail before the long key gets in to memory?

Billy



"stack" <stack@duboce.net> wrote in message 
news:7c962aed0908172252q5eab02fax7dfada4ee99dcb32@mail.gmail.com...
> The second hbase 0.20.0 release candidate is available for download:
>
> http://people.apache.org/~stack/hbase-0.20.0-candidate-2/
>
> Near to 450 issues have been addressed since the 0.19 branch.  Release 
> notes
> are available here: http://su.pr/18zcEO <http://tinyurl.com/8xmyx9>.
>
> HBase 0.20.0 runs on Hadoop 0.20.0.  Alot has changed since 0.19.x 
> including
> configuration fundamentals.  Be sure to read the 'Getting Started'
> documentation in 0.20.0 available here: http://su.pr/8YQjHO
>
> If you wish to bring your 0.19.x hbase data forward to 0.20.0, you will 
> need
> to run a migration.  See http://wiki.apache.org/hadoop/Hbase/HowToMigrate.
> First read the overview and then go to the section, 'From 0.19.x to 
> 0.20.x'.
>
> Should we release this candidate as hbase 0.20.0?  Please vote +1/-1 by
> Wednesday, August 25th.
>
> Yours,
> The HBasistas
> 



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