Titan,RexterClient:Message received response timeoutConnection (8000 s) at com.tinkerpop.rexster.client.RexsterClient.execute(RexsterClient.java:185)

Question

I am using RexterClient to access Titan-gremlin graph in java. But I got the beloww error on running :

Message received response timeoutConnection (8000 s)
    at com.tinkerpop.rexster.client.RexsterClient.execute(RexsterClient.java:185)

Below is my pom:

 <dependency>
        <groupId>com.tinkerpop.rexster</groupId>
        <artifactId>rexster-protocol</artifactId>
        <version>2.6.0</version>
    </dependency>
   <dependency>
            <groupId>com.thinkaurelius.titan</groupId>
            <artifactId>titan-all</artifactId>
            <version>1.0.0</version>
            <exclusions>
                <exclusion>
                    <groupId>com.sun.jersey</groupId>
                    <artifactId>jersey-core</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>com.sun.jersey</groupId>
                    <artifactId>jersey-json</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>com.sun.jersey</groupId>
                    <artifactId>jersey-server</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>com.thinkaurelius.titan</groupId>
            <artifactId>titan-core</artifactId>
            <version>1.0.0</version>
        </dependency>

If you guys have any idea please tell me how to fix

Answer 1

You have some dependency mismatches there.

• Rexster is from TinkerPop 2. You can tell because the package name starts with com.tinkerop.
• Titan 1.0 uses Apache TinkerPop 3.0.1. You can tell because the package name starts with org.apache.tinkerpop. It is not compatible with TinkerPop 2.

Some pointers you should look into:

• Gremlin Server is the replacement for Rexster. Titan bundles Gremlin Server within the distribution.
• You can connect to a Gremlin Server using the Gremlin Java Driver. I have an example of this at titan-tp3-driver-example.
• You should not include titan-all as a dependency, rather you should include the specific storage that your graph is using. For example, include titan-cassandra or titan-hbase.