I have setup hadoop/hbase and tested it out by running "hase shell".
Now while running hama example I am getting the following execption :
Also I could see a table : hama.admin.table being created in hbase,
but with zero rows.
>./bin/hama examples rand -m 10 -r 10 2 2 5% matrixA
09/11/23 17:59:36 INFO zookeeper.ZooKeeper: Client
environment:os.version=2.6.27-11-generic
09/11/23 17:59:36 INFO zookeeper.ZooKeeper: Client
environment:user.name=pmukherjee
09/11/23 17:59:36 INFO zookeeper.ZooKeeper: Client
environment:user.home=/home/pmukherjee
09/11/23 17:59:36 INFO zookeeper.ZooKeeper: Client
environment:user.dir=/home/pmukherjee/apps/hama/hama-trunk
09/11/23 17:59:36 INFO zookeeper.ZooKeeper: Initiating client
connection, connectString=localhost:2181 sessionTimeout=60000
watcher=org.apache.hadoop.hbase.client.hconnectionmanager$clientzkwatc...@7bb290
09/11/23 17:59:36 INFO zookeeper.ClientCnxn:
zookeeper.disableAutoWatchReset is false
09/11/23 17:59:36 INFO zookeeper.ClientCnxn: Attempting connection to
server localhost/127.0.0.1:2181
09/11/23 17:59:36 INFO zookeeper.ClientCnxn: Priming connection to
java.nio.channels.SocketChannel[connected local=/127.0.0.1:55638
remote=localhost/127.0.0.1:2181]
09/11/23 17:59:36 INFO zookeeper.ClientCnxn: Server connection successful
09/11/23 18:00:55 WARN client.HConnectionManager$TableServers: Testing
for table existence threw exception
org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to
contact region server null for region , row '', but failed after 10
attempts.
Exceptions:
java.io.IOException: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.io.IOException: java.lang.NullPointerException
java.io.IOException: java.io.IOException: java.lang.NullPointerException
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getRegionServerWithRetries(HConnectionManager.java:994)
at
org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:54)
at
org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:28)
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.listTables(HConnectionManager.java:427)
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.tableExists(HConnectionManager.java:377)
at
org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:113)
at
org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:100)
at org.apache.hama.HamaAdminImpl.initialJob(HamaAdminImpl.java:78)
at org.apache.hama.HamaAdminImpl.<init>(HamaAdminImpl.java:70)
at
org.apache.hama.matrix.AbstractMatrix.setConfiguration(AbstractMatrix.java:93)
at org.apache.hama.matrix.SparseMatrix.<init>(SparseMatrix.java:62)
at
org.apache.hama.matrix.SparseMatrix.random_mapred(SparseMatrix.java:122)
at org.apache.hama.examples.RandomMatrix.main(RandomMatrix.java:49)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
at org.apache.hama.examples.ExampleDriver.main(ExampleDriver.java:34)
java.lang.reflect.UndeclaredThrowableException
at $Proxy1.getRegionInfo(Unknown Source)
