Kareem,
Have you built Hadoop from its sources by using Ant or have you
downloaded the (precompiled) distribution?
Only in the first case you actually have both
${HADOOP_HOME}/build/classes and
${HADOOP_HOME}/build/contrib/hbase/classes.
And in this case, are you sure that the HADOOP_HOME variable is properly
set in the environment where you compile your class?
If you downloaded the (e.g. 0.15.0) distribution then you have to add
the ${HADOOP_HOME}/hadoop-0.15.0-core.jar and
${HADOOP_HOME}/contrib/hadoop-0.15.0-hbase.jar.
...and again, be sure to have HADOOP_HOME properly set.
Cheers,
Holger
Kareem Dana wrote:
Are there any instructions for setting the classpath to correctly
compile your own simple hbase example program?
All I've written so far is a main class that loads up an hbase conf as
shown: HBaseConfiguration conf = new HBaseConfiguration();
When I try to compile with javac:
HBaseHelloWorld.java:2: package org.apache.hadoop does not exist
import org.apache.hadoop.hbase;
^
HBaseHelloWorld.java:9: cannot find symbol
symbol : class HBaseConfiguration
location: class HBaseHelloWorld
HBaseConfiguration conf = new HBaseConfiguration();
^
HBaseHelloWorld.java:9: cannot find symbol
symbol : class HBaseConfiguration
location: class HBaseHelloWorld
HBaseConfiguration conf = new HBaseConfiguration();
^
3 errors
What directories should be in my classpath and what packages should I
import? I really just want access to HBaseConfiguration, HBaseAdmin,
and HTable. I tried to import org.apache.hadoop.hbase and
org.apache.hadoop. I set my classpath to ${HADOOP_HOME}/build/classes
and ${HADOOP_HOME}/build/contrib/hbase/classes. I am also trying to
compile my "hello world" program outside of the hadoop source tree.
- Kareem
