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HBase >> mail # user >> WARN CleanerChore - Error while cleaning the logs


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WARN CleanerChore - Error while cleaning the logs
Hi,

Recently after upgrading to 0.94.3, my unit test which is using HBase mini cluster keeps throwing this warning.
Why does it want to delete a table folder?
Can someone elaborate on this exception?

My test it self is setting up two tables, in which only one is used. The one in the errors is the unused one.
2013-01-29 09:23:49,439 [Master:0;10.100.101.100,50240,1359443567092.archivedHFileCleaner]  WARN CleanerChore - Error while cleaning the logs
java.io.IOException: java.io.IOException: /user/amesika/hbase/.archive/testing_no_c is non empty
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.delete(FSNamesystem.java:1972)
at org.apache.hadoop.hdfs.server.namenode.NameNode.delete(NameNode.java:792)
at sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:563)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.apache.hadoop.hbase.RemoteExceptionHandler.decodeRemoteException(RemoteExceptionHandler.java:96)
at org.apache.hadoop.hbase.RemoteExceptionHandler.checkThrowable(RemoteExceptionHandler.java:48)
at org.apache.hadoop.hbase.RemoteExceptionHandler.checkIOException(RemoteExceptionHandler.java:66)
at org.apache.hadoop.hbase.master.cleaner.CleanerChore.chore(CleanerChore.java:124)
at org.apache.hadoop.hbase.Chore.run(Chore.java:67)
at java.lang.Thread.run(Thread.java:680)
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB