test compression in hbase

[Mohamed Ghareb <m....@tedata.net>]

How I can test the compression snappy in hbase
 I ran the below command
hbase org.apache.hadoop.hbase.util.CompressionTest /hbase/test snappy

the test table is exist and empty but i have error

14/03/25 13:12:01 DEBUG util.FSUtils: Creating file=/hbase/test with permission=rwxrwxrwx
14/03/25 13:12:01 INFO hbase.HBaseFileSystem: Create Path with Perms, sleeping 1000 times 1
14/03/25 13:12:02 INFO hbase.HBaseFileSystem: Create Path with Perms, sleeping 1000 times 2
14/03/25 13:12:04 INFO hbase.HBaseFileSystem: Create Path with Perms, sleeping 1000 times 3
14/03/25 13:12:07 INFO hbase.HBaseFileSystem: Create Path with Perms, sleeping 1000 times 4
14/03/25 13:12:11 INFO hbase.HBaseFileSystem: Create Path with Perms, sleeping 1000 times 5
14/03/25 13:12:16 INFO hbase.HBaseFileSystem: Create Path with Perms, sleeping 1000 times 6
14/03/25 13:12:22 INFO hbase.HBaseFileSystem: Create Path with Perms, sleeping 1000 times 7
14/03/25 13:12:29 INFO hbase.HBaseFileSystem: Create Path with Perms, sleeping 1000 times 8
14/03/25 13:12:37 INFO hbase.HBaseFileSystem: Create Path with Perms, sleeping 1000 times 9
14/03/25 13:12:46 INFO hbase.HBaseFileSystem: Create Path with Perms, sleeping 1000 times 10
14/03/25 13:12:56 WARN hbase.HBaseFileSystem: Create Path with Perms, retries exhausted
Exception in thread "main" org.apache.hadoop.ipc.RemoteException(java.io.IOException): /hbase/test is non empty
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.deleteInternal(FSNamesystem.java:2908)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.deleteInt(FSNamesystem.java:2872)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.delete(FSNamesystem.java:2859)
        at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.delete(NameNodeRpcServer.java:642)
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.delete(ClientNamenodeProtocolServerSideTranslatorPB.java:408)
        at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:44968)
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:453)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1002)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1752)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1748)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:396)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1438)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1746)

how can I test the compression