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From "Liu Xianglong" <sallonch...@hotmail.com>
Subject Qustion about HBase error
Date Tue, 20 Oct 2009 03:27:10 GMT
hi, everyone. I wrote HBase java program as follows:

public class Test {
 private String tableName = "ImageFeatures";
 private HTable table = null;
 private HBaseConfiguration conf = new HBaseConfiguration();
 
 public  void createTable() throws IOException {
  HBaseAdmin admin = new HBaseAdmin(conf);
  
  if (!admin.tableExists(tableName)) {
   System.out.println("creating table...");
   HTableDescriptor tableDescripter = new HTableDescriptor(tableName.getBytes());
   tableDescripter.addFamily(new HColumnDescriptor("ID"));
         tableDescripter.addFamily(new HColumnDescriptor("Path"));
         tableDescripter.addFamily(new HColumnDescriptor("Features"));
         admin.createTable(tableDescripter);
         System.out.println("creat table successfully!");
        }
  
 }
 
 public static void main(String args[]) throws IOException {
  Test test = new Test();
  test.createTable();
 }
}

There is some error when I run ./hadoop jar test.jar, seems cann't connect to the server


09/10/20 11:24:26 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:60000.
Already tried 0 time(s).
09/10/20 11:24:27 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:60000.
Already tried 1 time(s).
09/10/20 11:24:28 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:60000.
Already tried 2 time(s).
09/10/20 11:24:29 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:60000.
Already tried 3 time(s).
09/10/20 11:24:30 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:60000.
Already tried 4 time(s).
09/10/20 11:24:31 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:60000.
Already tried 5 time(s).
09/10/20 11:24:32 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:60000.
Already tried 6 time(s).
09/10/20 11:24:33 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:60000.
Already tried 7 time(s).
09/10/20 11:24:34 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:60000.
Already tried 8 time(s).
09/10/20 11:24:35 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:60000.
Already tried 9 time(s).
09/10/20 11:24:35 INFO client.HConnectionManager$TableServers: Attempt 0 of 10 failed with
<java.net.ConnectException: Call to localhost/127.0.0.1:60000 failed on connection exception:
java.net.ConnectException: Connection refused>. Retrying after sleep of 2000
Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hadoop.ipc.Client.incCount()V
from class org.apache.hadoop.ipc.HBaseClient
        at org.apache.hadoop.ipc.HBaseClient.incCount(HBaseClient.java:48)
        at org.apache.hadoop.hbase.ipc.HbaseRPC$ClientCache.getClient(HbaseRPC.java:187)
        at org.apache.hadoop.hbase.ipc.HbaseRPC$ClientCache.access$200(HbaseRPC.java:164)
        at org.apache.hadoop.hbase.ipc.HbaseRPC$Invoker.<init>(HbaseRPC.java:238)
        at org.apache.hadoop.hbase.ipc.HbaseRPC.getProxy(HbaseRPC.java:384)
        at org.apache.hadoop.hbase.ipc.HbaseRPC.getProxy(HbaseRPC.java:364)
        at org.apache.hadoop.hbase.ipc.HbaseRPC.getProxy(HbaseRPC.java:412)
        at org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getMaster(HConnectionManager.java:188)
        at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:67)
        at Test.createTable(Test.java:24)
        at Test.main(Test.java:103)
        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.RunJar.main(RunJar.java:156)

I am confused why it connect localhost:60000, may my hbase configuration be right? Would someone
can help me solve this problem? Thanks!

Best Wishes!
_____________________________________________________________
 
刘祥龙  Liu Xianglong
北京航空航天大学软件开发环境国家重点实验室(新主楼G611室) NLSDE,
Beihang Univ.
Tel:(+86)10-8233 8094
E-Mail: xlong_liu@nlsde.buaa.edu.cn
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