我的hbase java代码创建表
public class CreateTable {
public static void main( String args[] ) throws IOException {
HBaseConfiguration hc = new HBaseConfiguration( new Configuration( ) );
HTableDescriptor ht = new HTableDescriptor( "cdrs" );
ht.addFamily( new HColumnDescriptor( "number:" ) );
ht.addFamily( new HColumnDescriptor( "company:" ) );
ht.addFamily( new HColumnDescriptor( "time:" ) );
ht.addFamily( new HColumnDescriptor( "location:" ) );
HBaseAdmin hba = new HBaseAdmin( hc );
System.out.println( "creating table..." );
hba.createTable( ht );
System.out.println( "done!" );
}
运行我得到的代码的jar: - hadoop jar hbase-0.0.1-SNAPSHOT.jar apache.hbase.CreateTable
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop /hbase/HBaseConfiguration
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.apache.hadoop.util.RunJar.run(RunJar.java:227)
at org.apache.hadoop.util.RunJar.main(RunJar.java:148)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hbase.HBaseConfiguration
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 4 more
我是hadoop和hbase的新手,并且在过去的几天里面临运行这个罐子的问题..非常感谢
答案 0 :(得分:0)
你是否包含了hbase-common依赖? 如果您使用的是maven,那么当您包含hbase-client时,它将作为传递依赖项下载。
包:org.apache.hadoop.hbase
此外,新的HBaseConfiguration(... params ...)现已弃用,您应该使用HBaseConfiguration.create();
Configuration config = HBaseConfiguration.create();
config.setInt("timeout", timeout);
config.set("hbase.zookeeper.quorum",zkAddress);
config.set("hbase.zookeeper.property.clientPort", zkPort);
config.set("hbase.client.retries.number", nRetries);//check for configs applicable or use hbase-site and core-site configs
Connection connection = ConnectionFactory.createConnection(config);
答案 1 :(得分:0)
在新的hbase版本上制作fat jar有一个问题,jars被弃用了许多依赖项。所以我在外部eclipse中添加了hbase-client-1.2.6-jar
和hbase-common-1.2.6-jar
。这解决了我的问题。