Java连接HBase失败

[liangtu]

Hadoop 1.1.0、HBase-0.96.0。都安装在一台机器上。都能正常启动。
HBase能用hbase shell进行数据库的增删改查操作。现在用java访问，报如下错：

org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after attempts=35, exceptions:
Thu Jan 02 15:07:34 CST 2014, org.apache.hadoop.hbase.client.RpcRetryingCaller@1b118c5, java.net.ConnectException: Connection refused: no further information

java代码如下

Configuration conf = HBaseConfiguration.create();
		conf.set("hbase.zookeeper.quorum", "服务器IP");
		conf.set("hbase.zookeeper.property.clientPort", "2181");
		System.out.println("1111");
		HBaseAdmin admin = new HBaseAdmin(conf);
		System.out.println("2222");
		HTableDescriptor tableDescriptor = admin.getTableDescriptor(Bytes.toBytes("scores"));
		System.out.println("3333");
		byte[] name = tableDescriptor.getName();
		System.out.println("下面开始输出结果：");
		System.out.println("表名：" + new String(name));
		HColumnDescriptor[] columnFamilies = tableDescriptor.getColumnFamilies();
		for (HColumnDescriptor d : columnFamilies)
		{
			System.out.println("列族名：" + d.getNameAsString());
		}

[liangtu]

引用 2 楼 tntzbzc 的回复:

java.net.ConnectException: Connection refused: no further information 出现这个错误，多数是CLIENT和ZK连接不上造成的 先检查一下ZK，包括ZK的LOG

hbase-root-master-Master.Hadoop.out文件中日志如下：

14/01/03 16:54:45 INFO server.NIOServerCnxnFactory: Accepted socket connection from /192.168.1.61:6495
14/01/03 16:54:45 INFO server.ZooKeeperServer: Client attempting to establish new session at /192.168.1.61:6495
14/01/03 16:54:45 INFO server.ZooKeeperServer: Established session 0x143574eb7dd0007 with negotiated timeout 40000 for client /192.168.1.61:6495
14/01/03 16:55:16 INFO server.ZooKeeperServer: Expiring session 0x143574eb7dd0006, timeout of 40000ms exceeded
14/01/03 16:55:16 INFO server.PrepRequestProcessor: Processed session termination for sessionid: 0x143574eb7dd0006

[liangtu]

引用 2 楼 tntzbzc 的回复:

java.net.ConnectException: Connection refused: no further information 出现这个错误，多数是CLIENT和ZK连接不上造成的 先检查一下ZK，包括ZK的LOG

hbase中配置了管理ZK，java调用过程的日志如下

14/01/03 16:54:45 INFO server.NIOServerCnxnFactory: Accepted socket connection from /192.168.1.61:6495
14/01/03 16:54:45 INFO server.ZooKeeperServer: Client attempting to establish new session at /192.168.1.61:6495
14/01/03 16:54:45 INFO server.ZooKeeperServer: Established session 0x143574eb7dd0007 with negotiated timeout 40000 for client /192.168.1.61:6495
14/01/03 16:55:16 INFO server.ZooKeeperServer: Expiring session 0x143574eb7dd0006, timeout of 40000ms exceeded
14/01/03 16:55:16 INFO server.PrepRequestProcessor: Processed session termination for sessionid: 0x143574eb7dd0006
14/01/03 17:00:11 WARN server.NIOServerCnxn: Exception causing close of session 0x143574eb7dd0007 due to java.io.IOException: Connection reset by peer
14/01/03 17:00:11 INFO server.NIOServerCnxn: Closed socket connection for client /192.168.1.61:6495 which had sessionid 0x143574eb7dd0007

[撸大湿]

java.net.ConnectException: Connection refused: no further information 出现这个错误，多数是CLIENT和ZK连接不上造成的 先检查一下ZK，包括ZK的LOG

[撸大湿]

日志贴错了
如果是由hbase托管的,ZK的日志在：HBASE_HOME/logs/hbase-XXXX-zookeeper-XXXX.log

顺便检查一下IPTABLES

[yaerfeng]

也可以参考代码：求java连接hbase 连接的代码 下载地址：http://www.zuidaima.com/share/1550463551982592.htm

[Not stingy]

@剑雪平民 想问一下解决了吗

[剑雪平民]

楼主你的问题怎么解决的，我也遇到同样的问题了