AnsweredAssumed Answered

Running accumulo on MapR

Question asked by toddstavish on Mar 20, 2012
Latest reply on Mar 20, 2012 by toddstavish

Accumulo is silimar in ways to HBase. When I run the accumulo services on Mapr, I am seeing the following exception in all of the logs. It seems like this cast should work. Any ideas on the cause and/or ideas to resolve it?

20 09:00:07,644 [tabletserver.TabletServer] ERROR: Uncaught exception
in TabletServer.main, exiting
java.lang.ClassCastException: com.mapr.fs.MapRFileSystem cannot be
cast to org.apache.hadoop.hdfs.DistributedFileSystem
       at org.apache.accumulo.server.Accumulo.waitForZookeeperAndHdfs(
       at org.apache.accumulo.server.Accumulo.init(
       at org.apache.accumulo.server.tabletserver.TabletServer.config(
       at org.apache.accumulo.server.tabletserver.TabletServer.main(
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(
       at java.lang.reflect.Method.invoke(
       at org.apache.accumulo.start.Main$