Does JanusGraph run on Windows 10

Question

I'm running on Windows 10 with janusgraph-0.2.0-hadoop2.

I have put the winutils.exe in the bin folder.

    P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\bin>gremlin-server.bat
    Error: Could not find or load main class Files

I had a quick look at the bat script and added some echo statements:

    echo "%1"
    
    IF "%1" == "-i" ( 
        GOTO install
    ) else (
        GOTO server
    )
    
    :: Start the Gremlin Server
    
    :server
    
    IF "%1" == "" (
      SET GREMLIN_SERVER_YAML=%JANUSGRAPH_HOME%\conf\gremlin-server\gremlin-server.yaml
    ) ELSE (
      SET GREMLIN_SERVER_YAML=%1
    )
    
    java %JAVA_OPTIONS% %JAVA_ARGS% -cp %CP% org.apache.tinkerpop.gremlin.server.GremlinServer %GREMLIN_SERVER_YAML%
    
    echo %JAVA_OPTIONS%
    echo %JAVA_ARGS%
    echo %CP%
    echo %GREMLIN_SERVER_YAML%
    echo "call to GremlinServer"

The output:

    P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\bin>gremlin-server.bat
    .;C:\Program Files (x86)\QuickTime\QTSystem\QTJava.zip;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\slf4j-log4j12-1.7.12.jar;;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-all-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-berkeleyje-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-bigtable-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-cassandra-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-core-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-cql-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-es-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-hadoop-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-hbase-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-lucene-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-solr-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\*;
    ""
    Error: Could not find or load main class Files
    -Xms32m -Xmx512m  -Djanusgraph.logdir=P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\log  -Dtinkerpop.ext=P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\ext  -Dlogback.configurationFile=conf\logback.xml  -Dlog4j.configuration=file:/P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\conf\gremlin-server\log4j-server.properties  -Dlog4j.debug=true  -Dgremlin.log4j.level=WARN  -javaagent:P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\jamm-0.3.0.jar  -Dgremlin.io.kryoShimService=org.janusgraph.hadoop.serialize.JanusGraphKryoShimService
    ECHO is off.
    .;C:\Program Files (x86)\QuickTime\QTSystem\QTJava.zip;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\slf4j-log4j12-1.7.12.jar;;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-all-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-berkeleyje-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-bigtable-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-cassandra-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-core-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-cql-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-es-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-hadoop-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-hbase-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-lucene-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\janusgraph-solr-0.2.0.jar;P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\lib\*;
    P:\Software\DB\NoSQL\janusgraph-0.2.0-hadoop2\conf\gremlin-server\gremlin-server.yaml
    "call to GremlinServer"

Answer 1

This question was also asked on the janusgraph-users Google Group, and I've copied my answers here:

JanusGraph does run on Windows 10. The user experience is not ideal, and could use some help with people with Windows expertise. I've opened up issue 950 to track making the prepackaged distribution more Windows-friendly.

Your problem is probably coming from your CLASSPATH variable, and I'd think that ".;C:\Program Files (x86)\QuickTime\QTSystem\QTJava.zip;" is messing it up because of the spaces in the path. Try unsetting the CLASSPATH before running gremlin-server.bat.

The default Gremlin Server configuration uses janusgraph-cassandra-es-server.properties because the pre-packaged distribution bin/janusgraph.sh start will start a single node Cassandra, a single node Elasticsearch, and the Gremlin Server. If you want to run with Cassandra, you could go a version directly from the Apache Cassandra site or a Datastax distribution if you want to go with an MSI installer. If you're not interested in using Cassandra, you could change the gremlin-server.yaml to use the janusgraph-berkeleyje-server.properties which is pretty good for getting started.