topic Re: Hbase Connectivity issue with Neo4j Database in Talend Studio

Hbase Connectivity issue with Neo4j Database

Anonymous — Sat, 16 Nov 2024 11:36:47 GMT

Hi All,
I'm working on a Windows 7 64 bits and using TOS for Big Data 5.5
I created a new database using Neo4j 2.1.1
Hbase Version- hbase-0.94.8
hbase.zookeeper.quorum- "10.207.5.21"
hbase.zookeeper.clientPort - "2181
Job name : HbaseJobTest
I want to read from a hbase table to a Neo4j although I am getting a connection error. Here is my execution log:
Error Description :-
""Starting job HbaseJobTest at 11:11 17/06/2014.
Error: Could not find or load main class test.hbasejobtest_0_1.HbaseJobTest
Job HbaseJobTest ended at 11:11 17/06/2014. ""
PFA the image for connection arrangement.
So , would any one have an idea how to fix this issue? or
How may I use the tHBase* components to establish this?
Many Thanks
Sushil

Re: Hbase Connectivity issue with Neo4j Database

Anonymous — Tue, 17 Jun 2014 07:57:27 GMT

Hi,
I have faced this error many times, if the job building is not properly handled by talend. Re-executing the job fixed it autmatically... have you tried closing and opening it again?
Vaibhav

Re: Hbase Connectivity issue with Neo4j Database

Anonymous — Tue, 17 Jun 2014 09:19:07 GMT

Yes I have tried many times but still the problem is same.

Re: Hbase Connectivity issue with Neo4j Database

Anonymous — Tue, 17 Jun 2014 09:26:58 GMT

Now after re-executing so many time I'm getting error like

Starting job hbase_input_output at 13:53 17/06/2014.
java.lang.NoClassDefFoundError: projectname/hbase_input_output_0_1/hbase_input_output
Caused by: java.lang.ClassNotFoundException: projectname.hbase_input_output_0_1.hbase_input_output
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: projectname.hbase_input_output_0_1.hbase_input_output. Program will exit.
Exception in thread "main"
Job hbase_input_output ended at 13:53 17/06/2014.
Did you face the same ?? How can we resolve this issue ??
Thanks & Regards,
Sushil

Re: Hbase Connectivity issue with Neo4j Database

Anonymous — Tue, 05 Aug 2014 09:45:10 GMT

Are you using direct connection to Neo4j, if so try connect to Neo4j Rest API (server URL) instead, like the image.
http://lucidwebdreams.files.wordpress.com/2014/07/05_tneo4joutput.png