How to run HBase program - hadoop

Question

How can I run the code below from the command line?
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.client.*;
import org.apache.hadoop.hbase.util.*;
public class MyHBase {
public static void main(String[] args) throws Exception {
Configuration conf = HBaseConfiguration.create();
HBaseAdmin admin = new HBaseAdmin(conf);
try {
HTable table = new HTable(conf, "test-table");
Put put = new Put(Bytes.toBytes("test-key"));
put.add(Bytes.toBytes("cf"), Bytes.toBytes("q"), Bytes.toBytes("value"));
table.put(put);
} finally {
admin.close();
}
}
}
How to set my hbase classpath? I am getting a huge string in my classpath.
UPDATE
root# vi MyHBase.java
hbase-0.92.2 root# java -classpath `hbase classpath`:./ /var/root/MyHBase
-sh: hbase: command not found
Exception in thread "main" java.lang.NoClassDefFoundError: /var/root/MyHBase
Caused by: java.lang.ClassNotFoundException: .var.root.MyHBase
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
I am able to do
hbase-0.92.2 root# bin/hbase shell
HBase Shell; enter 'help<RETURN>' for list of supported commands.
Type "exit<RETURN>" to leave the HBase Shell
Version 0.92.2, r1379292, Fri Aug 31 13:13:53 UTC 2012
hbase(main):001:0> exit
Am i doing anything wrong?

Answer 1

You can also do something like this:-
# export HADOOP_CLASSPATH=`./hbase classpath`
and then bundle this java in jar to run it within hadoop cluster like this:-
#hadoop jar <jarfile> <mainclass>

Answer 2

Use this
java -classpath `hbase classpath`:./ MyHBase
this will get the entire classpath string that HBase uses and adds the current directory as well to the classpath.
Cheers
Rags