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Re: Question about Loading the Graph of the Gods Into JanusGraph

Serge Prudhomme <serge.p...@...>
 

Thanks Debasish,
I haven't modified any configuration file. 
I'm just running the docker image as is from the image repository as I indicated.

I tried the following as you suggested. Not sure if I'm doing it right: 
gremlin> graph = JanusGraphFactory.open('conf/janusgraph-berkeleyje.properties').loadWithoutMixedIndex(true)

And still get this error:
11:15:02 WARN  org.janusgraph.diskstorage.es.rest.RestElasticSearchClient  - Unable to determine Elasticsearch server version. Default to FIVE.
java.net.ConnectException: Connection refused
at org.elasticsearch.client.RestClient$SyncResponseListener.get(RestClient.java:952)
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:229)
... long stack dump...
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvent(DefaultConnectingIOReactor.java:171)
at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvents(DefaultConnectingIOReactor.java:145)
at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:348)
at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.execute(PoolingNHttpClientConnectionManager.java:192)
at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase$1.run(CloseableHttpAsyncClientBase.java:64)
at java.lang.Thread.run(Thread.java:748)
Could not instantiate implementation: org.janusgraph.diskstorage.es.ElasticSearchIndex

Also if I look at the README in the docker repo and try to do the same it doesn't work.
docker run --rm --link janusgraph-default:janusgraph -e GREMLIN_REMOTE_HOSTS=janusgraph \
>     -it janusgraph/janusgraph:latest ./bin/gremlin.sh
Feb 06, 2020 12:46:15 PM java.util.prefs.FileSystemPreferences$1 run
INFO: Created user preferences directory.

         \,,,/
         (o o)
-----oOOo-(3)-oOOo-----
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/opt/janusgraph/lib/slf4j-log4j12-1.7.12.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/opt/janusgraph/lib/logback-classic-1.1.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
plugin activated: tinkerpop.server
plugin activated: tinkerpop.tinkergraph
12:46:21 WARN  org.apache.hadoop.util.NativeCodeLoader  - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
plugin activated: tinkerpop.hadoop
plugin activated: tinkerpop.spark
plugin activated: tinkerpop.utilities
plugin activated: janusgraph.imports
gremlin> g.addV('person').property('name', 'chris')
No such property: g for class: groovysh_evaluate
So it looks like something changed in Gremlin and wasn't propagated to the instructions everywhere.

Regards,
  Serge

Le mer. 5 févr. 2020, à 20 h 45, Debasish Kanhar <d.k...@...> a écrit :
Are you specifying the elastic search index connection properties in your berkey.properties file?
If you don't want to use ES and using this just for exploration purpose then you can use .loadWithoutMixedIndex(true). That should resolve your problem

On Thu, Feb 6, 2020, 2:22 AM Serge Prud'homme <serge.p...@...> wrote:
Old post but still relevant two years later. I expect try the Graph of the Gods examples would be the first thing a new user would try yet it doesn't work out of the box. Even when using the 

I tried this
graph = JanusGraphFactory.open('conf/janusgraph-berkeleyje.properties')
and I get this:
Could not instantiate implementation: org.janusgraph.diskstorage.es.ElasticSearchIndex

I'm running with the docker image: docker run --name janusgraph1 -it -p 8182:8182 janusgraph/janusgraph:latest
As suggested here: https://docs.janusgraph.org/getting-started/installation/

Thanks,

Le jeudi 21 décembre 2017 15:37:26 UTC-5, Keith Lohnes a écrit :
Lujila, 

This would be better addressed in the JanusGraph users list. https://groups.google.com/forum/#!forum/janusgraph-users

This issue can happen if you don't have elasticsearch running/configured properly. Try just running `graph = JanusGraphFactory.open('conf/janusgraph-berkeleyje.properties')`

You also shouldn't need to sudo to run JanusGraph. just run bin/gremlin.sh, though it may cause issues for you now if you don't since the BerkeleyDB directory was created with sudo privileges.

Cheers,
Keith

On Thu, Dec 21, 2017 at 11:19 AM Lujia Zhang <luk...@...> wrote:
Hi Team, so I'm new to JanusGraph and having trouble with following the getting started tutorial from JanusGraph website. 
First, when I open Gremlin Shell, it gives a lot of warnings, which is concerning. Also having issue with executing graph = JanusGraphFactory.open('conf/janusgraph-berkeleyje-es.properties')


Error trace is long, if needed, I can post more error traces.

Please help.


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