Error on installing Titan DB on Windows

Question

Following the official guide of Titan DB here, and trying to run the command:

graph = TitanFactory.open('conf/titan-cassandra-es.properties')

I got this error:

Backend shorthand unknown: conf/titan-cassandra-es.properties

Obviously, the reason is the incorrect path to the

titan-cassandra-es.properties

file. So I changed it to:

graph = TitanFactory.open('../conf/titan-cassandra-es.properties')

and got this error:

Encountered unregistered class ID: 141.

The error happens in the following version: titan-0.5.4-hadoop2

On titan-1.0.0-hadoop2 instead of this error message I get this one:

Invalid import definition: 'com.thinkaurelius.titan.hadoop.MapReduceIndexManagement'; reason: startup failed: script14747941661821834264593.groovy: 1: unable to resolve class com.thinkaurelius.titan.hadoop.MapReduceIndexManagement  @ line 1, column 1.    import com.thinkaurelius.titan.hadoop.MapReduceIndexManagement    ^

1 error

And on titan-1.0.0-hadoop2 I get this one:

The input line is too long.
The syntax of the command is incorrect.

Does anyone know how to handle this issue?

Answer 1

It seems like you have not even managed to get Titan 1 to start up yet.

I do not believe Titan 1 has been deployed to support Windows out of the box. I.e. the downloadable package will not just work with windows.

Saying that I have managed to get Titan DB 1 to work on windows. To do so, all you have to do is install Cassandra 2.x on Windows. This guide may help you out. Start cassandra and enable thrift connections.

With that done you should be able to get Titan doing basic operations on windows. From there you may find dealing with you current errors easier.

Side Note: Windows support for Titan 0.5.x may be more substantial. So you could look into that as well.