The WALObserver should be configured under Hbase.coprocessor.wal.classes. I can see that you have done the config under region.classes.
Change this and it should work :) Regards Ram > -----Original Message----- > From: Michael Spiegle [mailto:m...@nauticaltech.com] > Sent: Thursday, October 25, 2012 5:26 PM > To: user@hbase.apache.org > Subject: How do I test SampleRegionWALObserver? > > I'm using CDH4, but I'd imagine that the steps would be similar for > upstream HBase. I've already got the tests JAR file loaded as part of > my classpath. I also have the following in my hbase-site.xml: > <property> > <name>hbase.coprocessor.region.classes</name> > > <value>org.apache.hadoop.hbase.coprocessor.SampleRegionWALObserver</val > ue> > </property> > > When I start HBase, the following shows up in my logs: > # grep Sample /var/log/hbase/hbase-hbase-regionserver-hbase01.log > 2012-10-24 13:06:13,126 INFO > org.apache.hadoop.hbase.coprocessor.CoprocessorHost: System coprocessor > org.apache.hadoop.hbase.coprocessor.SampleRegionWALObserver was loaded > successfully with priority (536870911). > > However, when I 'PUT' new rows in my table, I see no log entries show > up for SampleRegionWALObserver. After looking at the > SampleRegionWALObserver code, it seems that I need to call > setTestValues() in order to get preWALWrite() to execute the rest of > the code. I think this is something that I might be able to accomplish > via the 'hbase shell', but I can't figure out how. Can anyone help > point me in the right direction? > > For reference, this is the code I'm looking at: > http://svn.apache.org/repos/asf/hbase/tags/0.92.1/src/test/java/org/apa > che/hadoop/hbase/coprocessor/SampleRegionWALObserver.java > > Regards, > Michael Spiegle
