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From Ulrich Staudinger <ustaudin...@activequant.com>
Subject Re: hbase-0.90.4 unable to execute java application to retrieve hbase table
Date Thu, 05 Jan 2012 10:23:49 GMT
That's more a java related question.
With maven it is pretty straightforward to get this up and running, without
altering the CLASSPATH or even having HBase installed on your machine.

Do you use maven?

On Thu, Jan 5, 2012 at 10:34 AM, Neetu Ojha <neetuojha.cdac@gmail.com>wrote:

> Hello,
> I have installed HBase-0.90.4 on my local machine and as shown in "quick
> start " i installed/configured in standalone mode using my local file
> system of fedora-15. I have not started hadoop daemon assuming that its not
> needed as its completely standalone config. All the required libs that
> comes with the package are there. I faced lot of difficulty in compiling
> the simple code itself.I set CLASSPATH, in hbase-env.sh set HBASE_CLASSPATH
> but now it doen'n run. I took a code from the net and has created the
> required table in the hbase.
> When   I am trying to execute a very basic java code using Hbase-0.90.4
> API. some how it compiled but on execution it throws exception:
> java MyLittleHBaseClient
> Exception in thread "main" java.lang.NoClassDefFoundError:
> org/apache/commons/logging/LogFactory
>    at org.apache.hadoop.conf.Configuration.<clinit>(Configuration.java:139)
>    at MyLittleHBaseClient.main(MyLittleHBaseClient.java:21)
> Caused by: java.lang.ClassNotFoundException:
> org.apache.commons.logging.LogFactory
>    at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
>    at java.security.AccessController.doPrivileged(Native Method)
>    at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
>    at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
>    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
>    at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
>    ... 2 more
> Kindly see if any one has experienced the same issue at any point of time.
> As for me its a long way ahead, hbase over HDFS and then hadoop
> cluster.......
>  Thanks & Regards
>  Neetu sharma

Ulrich Staudinger

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