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From y_823...@tsmc.com
Subject Create Table
Date Tue, 08 Dec 2009 08:55:52 GMT
Hi there,

I've been trying to create HBase table by java code.
Using HBase shell, I can see the table was created after running following
codes,
but there's exception raised.
I don't know why it raised such exception in HBase0.20.2; these code run
well in HBase0.20.0.

There are 3 region servers in my cluster; I can see these status correctly
in http://ooxx:60010/master.jsp.
(hadoop dfs running well too),(3 ZooKeeper quorum resides in the region
server machine)
By the wat, any steps that I can confirm my HBase is running well without
any problems?
Thanks

public static void CreatHBaseTable(String TableName,String ColumnFamily){
             HBaseAdmin hbaseAdmin;
            try {
                  hbaseAdmin = new HBaseAdmin(config);

                  HColumnDescriptor column = new
HColumnDescriptor(ColumnFamily);
                  //table descriptor
                HTableDescriptor table = new HTableDescriptor(TableName);
                  //add column into table
                  table.addFamily(column);
                  hbaseAdmin.createTable(table);
            } catch (MasterNotRunningException e1) {
                  // TODO Auto-generated catch block
                  e1.printStackTrace();
            } catch (IOException e) {
                  // TODO Auto-generated catch block
                  e.printStackTrace();
            }

            System.out.println("create "+TableName +" ok");

      }



09/12/08 16:09:49 INFO zookeeper.ClientCnxn: Server connection successful
Exception in thread "main" java.lang.reflect.UndeclaredThrowableException
      at $Proxy1.getRegionInfo(Unknown Source)
      at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRootRegion(HConnectionManager.java:874)
      at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:515)
      at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491)
      at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:565)
      at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:524)
      at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491)
      at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:565)
      at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:528)
      at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491)
      at
org.apache.hadoop.hbase.client.HBaseAdmin.createTable(HBaseAdmin.java:169)
      at ClientMain.CreatHBaseTable(ClientMain.java:797)
      at ClientMain.main(ClientMain.java:65)
Caused by: org.apache.hadoop.ipc.RemoteException: java.io.IOException:
java.lang.NullPointerException
      at java.lang.Class.searchMethods(Class.java:2646)
      at java.lang.Class.getMethod0(Class.java:2670)
      at java.lang.Class.getMethod(Class.java:1603)
      at
org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:643)
      at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)

      at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:723)
      at
org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:328)
      ... 13 more
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