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hbase:应用开发,hbase表操作及其java api实现(四)
2014-11-24 07:53:22 来源: 作者: 【 】 浏览:3
Tags:hbase 应用开发 操作 及其 java api 实现
environment:java.home=C:\ Java\jre6
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.class.path=...............//太占篇幅此处省略
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.library.path=D:\workspace\Eclipse-jee\hadoop-1.1.21\lib\native;D:\workspace\Eclipse-jee\hadoop-1.1.21\lib\native
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.io.tmpdir=C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.compiler=
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:os.name=Windows XP
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:os.arch=x86
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:os.version=5.1
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:user.name=hadoop
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:user.home=C:\Documents and Settings\Administrator
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:user.dir=D:\workspace\Eclipse-jee\Hadoop_APPs_U_tht
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (ZooKeeper.java:(438)) - Initiating client connection, connectString=master:2181 sessionTimeout=180000 watcher=hconnection
2013-09-09 15:58:56,171 INFO zookeeper.RecoverableZooKeeper (RecoverableZooKeeper.java:(104)) - The identifier of this process is 6032@tht
2013-09-09 15:58:56,234 INFO zookeeper.ClientCnxn (ClientCnxn.java:logStartConnect(966)) - Opening socket connection to server master/121.1.253.251:2181. Will not attempt to authenticate using SASL (无法定位登录配置)
2013-09-09 15:58:56,296 INFO zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(849)) - Socket connection established to master/121.1.253.251:2181, initiating session
2013-09-09 15:58:56,484 INFO zookeeper.ClientCnxn (ClientCnxn.java:onConnected(1207)) - Session establishment complete on server master/121.1.253.251:2181, sessionid = 0x141011ad7db000e, negotiated timeout = 180000
result:
table name: users
column Families: address
column Families: info
column Families: user_id
示例二:使用HBase Java API对表users2进行操作:
代码:
[java]
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.client.Delete;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Res
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