Contrib transactional (org.apache.hadoop.hbase.client.tableindexed), version 0.20.3 tag with this patch applied ( https://issues.apache.org/jira/browse/HBASE-2426). I've been running on this patch for over a week now and have not seen this warning until today, after I introduced the regular HTable.
Well I just restarted the local pseudo-cluster and the warning did not re-appear. So now I'm wondering if the warning was a by-product of an inappropriate shutdown. Master and Zookeeper keep freezing if my laptop goes into hibernation mode, so I usually have to kill the processes since the regular shut down commands don't work. So I'm thinking that might be the issue, although the warming was pointing to a transactional vs. non-transactional log key discrepancy. In any case, I don't want to suck people into a wild goose chance here. I'll keep an eye on it. It might be that the patch is causing it although I doubt it; it did not touch any of the log key classes. I really just wanted to know whether transactional and non-transactional tables could co-exist since the former requires an org.apache.hadoop.hbase.ipc.IndexedRegionInterface implementation to work. I was not sure whether the two were compatible but it seems that they are expected to be. Correct? If so, this answers my question. -GS On Fri, Apr 16, 2010 at 10:57 AM, Michael Segel <michael_se...@hotmail.com>wrote: > > Interesting. > We haven't had an issue. > Are you using the ../contrib/transactional indexing or the other package? > > > From: gstat...@gmail.com > > Date: Fri, 16 Apr 2010 10:33:02 -0400 > > Subject: OK to mix transactional tables with regular HTables? > > To: hbase-user@hadoop.apache.org > > > > Hello all, > > > > Is it OK to mix transactional IndexTable and regular HTables in the same > > cluster? I am testing with both types and, while things seem to work ok > in > > the hbase shell, I just got this interesting warning when I restarted my > > local instance (see stack trace below). My data still seems to be there > > though. > > > > Thank you in advance for your input. > > > > -GS > > > > > > 2010-04-16 10:26:00,518 WARN org.apache.hadoop.hbase.regionserver.HLog: > > Exception processing > > hdfs://localhost:9000/hbase/.logs/192.168.1.16 > ,49693,1271367158426/hlog.dat.1271367158502 > > -- continuing. Possible DATA LOSS! > > java.io.IOException: wrong key class: > > org.apache.hadoop.hbase.regionserver.HLogKey is not class > > org.apache.hadoop.hbase.regionserver.transactional.THLogKey > > at org.apache.hadoop.io.SequenceFile$Reader.next(SequenceFile.java:1824) > > at org.apache.hadoop.io.SequenceFile$Reader.next(SequenceFile.java:1876) > > at org.apache.hadoop.hbase.regionserver.HLog.splitLog(HLog.java:966) > > at org.apache.hadoop.hbase.regionserver.HLog.splitLog(HLog.java:872) > > at > > > org.apache.hadoop.hbase.master.HMaster.splitLogAfterStartup(HMaster.java:616) > > at > > > org.apache.hadoop.hbase.master.HMaster.verifyClusterState(HMaster.java:550) > > at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:413) > > _________________________________________________________________ > The New Busy think 9 to 5 is a cute idea. Combine multiple calendars with > Hotmail. > > http://www.windowslive.com/campaign/thenewbusy?tile=multicalendar&ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_5 >
