|
How to improve the write speed of Java connection janusgraph?
This blog might be a good start for your further experiments: https://www.experoinc.com/post/janusgraph-nuts-and-bolts-part-1-write-performance Best wishes, Marc
This blog might be a good start for your further experiments: https://www.experoinc.com/post/janusgraph-nuts-and-bolts-part-1-write-performance Best wishes, Marc
|
By
hadoopmarc@...
· #5589
·
|
|
Janusgraph connect with MySQL Storage Backend
Hi Madhan It is exciting news that you have just made available this work under the APL2.0 license!!! Standard RDBMS, though not as scalable as the NoSQL storage backends, might provide an easy start
Hi Madhan It is exciting news that you have just made available this work under the APL2.0 license!!! Standard RDBMS, though not as scalable as the NoSQL storage backends, might provide an easy start
|
By
hadoopmarc@...
· #5590
·
|
|
Where does Computation happens
Hi Dany, Some anwers: computation happens inside janusgraph (not the storage backend) and janusgraph runs as part of gremlin server yes, a query and its computations run on a single gremlin server ins
Hi Dany, Some anwers: computation happens inside janusgraph (not the storage backend) and janusgraph runs as part of gremlin server yes, a query and its computations run on a single gremlin server ins
|
By
hadoopmarc@...
· #5594
·
|
|
Coalesce() step behaves differently than Or() step, with exception in sum() step
This question is also asked to the gremlin user group, where it can be best answered: https://groups.google.com/g/gremlin-users/c/-oBWRUxF_Hw
This question is also asked to the gremlin user group, where it can be best answered: https://groups.google.com/g/gremlin-users/c/-oBWRUxF_Hw
|
By
hadoopmarc@...
· #5597
·
|
|
JanusGraph 0.5.3 using Gremlin Server 3.4.10
Hi James, Best approach is to do a custom build of janusgraph with the version of TinkerPop changed (you can use -D skipTests because TInkerPop API have not changed). With the maven dependency plugin
Hi James, Best approach is to do a custom build of janusgraph with the version of TinkerPop changed (you can use -D skipTests because TInkerPop API have not changed). With the maven dependency plugin
|
By
hadoopmarc@...
· #5601
·
|
|
JanusGraph 0.5.3 using Gremlin Server 3.4.10
Also check: https://github.com/JanusGraph/janusgraph/commit/7fbf6567f259b2514e64e7a70e668e7975b38a72 This suggests that no new library conflicts occur. Marc
Also check: https://github.com/JanusGraph/janusgraph/commit/7fbf6567f259b2514e64e7a70e668e7975b38a72 This suggests that no new library conflicts occur. Marc
|
By
hadoopmarc@...
· #5602
·
|
|
Inconsistent composite index status after transaction failure
The janusgraph docs and gitrepo talk about ghost vertices or phantom vertices: https://docs.janusgraph.org/advanced-topics/eventual-consistency/#ghost-vertices https://docs.janusgraph.org/basics/trans
The janusgraph docs and gitrepo talk about ghost vertices or phantom vertices: https://docs.janusgraph.org/advanced-topics/eventual-consistency/#ghost-vertices https://docs.janusgraph.org/basics/trans
|
By
hadoopmarc@...
· #5604
·
|
|
JanusGraph meetup topic discussion - graph OLAP & algorithms
Hi Ted, Most probably you recognize my nickname from the answers I provided on this user forum on OLAP attempts with JanusGraph. I also co-authored: https://tinkerpop.apache.org/docs/current/recipes/#
Hi Ted, Most probably you recognize my nickname from the answers I provided on this user forum on OLAP attempts with JanusGraph. I also co-authored: https://tinkerpop.apache.org/docs/current/recipes/#
|
By
hadoopmarc@...
· #5605
·
|
|
JanusGraph meetup topic discussion - graph OLAP & algorithms
Hi Ted, Yes, a short overview of OLAP questions from the user list sounds like a good idea and is easy to prepare. It need not be long; 10 minutes including a few questions for clarifications would do
Hi Ted, Yes, a short overview of OLAP questions from the user list sounds like a good idea and is easy to prepare. It need not be long; 10 minutes including a few questions for clarifications would do
|
By
hadoopmarc@...
· #5609
·
|
|
REINDEXING Big Graph
Hi Abhay, The hadoop client picks up configs from the JVM classpath. So, simply add /etc/hadoop/conf (or some other folder that keeps the hdfs-site.xml and other cluster configs) to your classpath. Ne
Hi Abhay, The hadoop client picks up configs from the JVM classpath. So, simply add /etc/hadoop/conf (or some other folder that keeps the hdfs-site.xml and other cluster configs) to your classpath. Ne
|
By
hadoopmarc@...
· #5614
·
|
|
Changing graphname at runtime
Is this what you are looking for (it includes an explicit example): https://docs.janusgraph.org/basics/configured-graph-factory/#updating-configurations You can version your graph in the storage and i
Is this what you are looking for (it includes an explicit example): https://docs.janusgraph.org/basics/configured-graph-factory/#updating-configurations You can version your graph in the storage and i
|
By
hadoopmarc@...
· #5617
·
|
|
Gremlin Query to return count for nodes and edges
Hi Vinayak, Try: g.V().project('v', 'vcount', 'ecount').by(identity()).by(count()).by(bothE().count()) Best wishes, Marc
Hi Vinayak, Try: g.V().project('v', 'vcount', 'ecount').by(identity()).by(count()).by(bothE().count()) Best wishes, Marc
|
By
hadoopmarc@...
· #5621
·
|
|
Changing graphname at runtime
You really have to try this out and see. I can only answer from what I read in the ref docs. > Do I need to ConfiguredGraphFactory.close(GRAPH) before I update its configuration? The docs say the bind
You really have to try this out and see. I can only answer from what I read in the ref docs. > Do I need to ConfiguredGraphFactory.close(GRAPH) before I update its configuration? The docs say the bind
|
By
hadoopmarc@...
· #5625
·
|
|
Gremlin Query to return count for nodes and edges
Hi Vinayak, A new attempt: g = TinkerFactory.createModern().traversal() g.withSideEffect('vs', new HashSet()).withSideEffect('es', new HashSet()). V(1,2).aggregate('vs').outE().aggregate('es').inV().a
Hi Vinayak, A new attempt: g = TinkerFactory.createModern().traversal() g.withSideEffect('vs', new HashSet()).withSideEffect('es', new HashSet()). V(1,2).aggregate('vs').outE().aggregate('es').inV().a
|
By
hadoopmarc@...
· #5626
·
|
|
Gremlin Query to return count for nodes and edges
Hi Vinayak, Speeding up your query depends on your setup. 15.000 vertices/second is already fast. Is this the janusgraph inmemory backend? Or ScyllaDB? In a perfect world, not there yet, your query wo
Hi Vinayak, Speeding up your query depends on your setup. 15.000 vertices/second is already fast. Is this the janusgraph inmemory backend? Or ScyllaDB? In a perfect world, not there yet, your query wo
|
By
hadoopmarc@...
· #5631
·
|
|
JanusGraphIndex how to retrieve constraint (indexOnly) specified for the global index?
Confirmed, could not find it either. Could you please add it as a comment to: https://github.com/JanusGraph/janusgraph/issues/1163 Unless someone comes up with a solution, it seems you will have to ke
Confirmed, could not find it either. Could you please add it as a comment to: https://github.com/JanusGraph/janusgraph/issues/1163 Unless someone comes up with a solution, it seems you will have to ke
|
By
hadoopmarc@...
· #5632
·
|
|
JanusGraphIndex how to retrieve constraint (indexOnly) specified for the global index?
Thanks. Still, my earlier answer remains unsatisfactory. Somehow, a new JanusGraph instance must be able to load an existing schema from the system table and have the information about label constrain
Thanks. Still, my earlier answer remains unsatisfactory. Somehow, a new JanusGraph instance must be able to load an existing schema from the system table and have the information about label constrain
|
By
hadoopmarc@...
· #5635
·
|
|
ConfiguredGraphFactory and Authentication not working
Hi Vinayak, Could you try in the gremlin-server.yaml with just: graphs: { ConfigurationManagementGraph: conf/janusgraph-cql-configurationgraph.properties } So, without the graph, graph1 and graph2 key
Hi Vinayak, Could you try in the gremlin-server.yaml with just: graphs: { ConfigurationManagementGraph: conf/janusgraph-cql-configurationgraph.properties } So, without the graph, graph1 and graph2 key
|
By
hadoopmarc@...
· #5637
·
|
|
ConfiguredGraphFactory and Authentication not working
Hi Vinayak, You showed the error message from the remote console. Does gremlin server itself log anything particular about the ConfigurationManagementGraph after a restart? Marc
Hi Vinayak, You showed the error message from the remote console. Does gremlin server itself log anything particular about the ConfigurationManagementGraph after a restart? Marc
|
By
hadoopmarc@...
· #5639
·
|
|
Not able to reindex with bigtable as backend
Please be sure to run all the steps (including a graph.tx().rollback() before index creation and a mgmt.commit() after update of the index) from the example in: https://docs.janusgraph.org/index-manag
Please be sure to run all the steps (including a graph.tx().rollback() before index creation and a mgmt.commit() after update of the index) from the example in: https://docs.janusgraph.org/index-manag
|
By
hadoopmarc@...
· #5642
·
|