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Re: [BLOG] Configuring JanusGraph for spark-yarn

Hi Marc, Request your help, I am runnign Janusgraph with maprdb as backend, I have successfuly been able to create GodofGraphs example on M7 as backend But when I am trying to execute the following

By Gariee <garim...@...> · #535 ·

Issue when trying to use Spark Graph Computer

Hi, I am trying to execute the following where cluster is mapr and spark on yarn graph=GraphFactory.open('conf/hadoop-graph/hadoop-load.properties') g =

By Gariee <garim...@...> · #534 ·

Re: Creating a gremlin pipeline from an arraylist

You probably should benchmark it, but I'd think that the injection would be faster since you already have the edges resolved. I think using the graph step g.E(a) would ultimately re-lookup the edges

By Jason Plurad <plu...@...> · #533 ·

Re: A few questions about JanusGraph.

Sounds like the documentation could use some improvements to help make this more clear. I've opened up an issue to track it. 1) What is the relation between Gremlin server (bin/gremlin-server.bat) and

By Jason Plurad <plu...@...> · #530 ·

Re: Do We Need Specialized Graph Databases? Benchmarking Real-Time Social Networking Applications

Looking forward to reading about your colleagues findings, Jason. Not using indices would certainly at least partially explain the poor performance given the types of queries they were making.

By Raymond Canzanese <r...@...> · #526 ·

Creating a gremlin pipeline from an arraylist

I have an arraylist a of edges that I want to make gremlin queries over. In the old days, I would do: a._() And have a pipeline I could work with. Now it seems I can

By Raymond Canzanese <r...@...> · #525 ·

A few questions about JanusGraph.

Hi, I have read the JanusGraph documentation and the GraphOfTheGodsFactory.java file, and I also have a small sample running, However, I am still not clear about the following doubts related to

By Manoj Waikar <mmwa...@...> · #524 ·

Re: [BLOG] Configuring JanusGraph for spark-yarn

Hi Marc - thank you very much for your reply. I like your idea about moving regions manually and will try that. As to OLAP vs OLTP (I assume Spark vs none), yes I have those times.

By Joe Obernberger <joseph.o...@...> · #532 ·

Re: Index on a vertex label from Java

You can't create an index on a vertex label right now. See https://github.com/JanusGraph/janusgraph/issues/283 You can create an index on a property. For example, you could define a property called

By Jason Plurad <plu...@...> · #523 ·

Re: Exception in thread "main" java.lang.OutOfMemoryError: Java heap space while loading bulk data

You might consider using a format other than JSON which can easily read incrementally, such as CSV or a more compact binary encoding such as: Apache Avro https://github.com/eclesh/recordio or you may

By Misha Brukman <mbru...@...> · #531 ·

Re: Cache expiration time

According to the docs, it is a GLOBAL_OFFLINE configuration setting: "These options can only be changed for the entire database cluster at once when all instances are shut down." You'll need to set

By Jason Plurad <plu...@...> · #522 ·

Re: Exception in thread "main" java.lang.OutOfMemoryError: Java heap space while loading bulk data

Thanks Robert, I am going to check the file size and its contents when I reach home and also will try to load the file through the shell and post the update here. -- Thanks &

By Amyth Arora <aroras....@...> · #539 ·

Re: Jetty ALPN/NPN has not been properly configured.

Hi Misha, Yes, I did, I am sorry. I have found the solution to this. Am going to post it and close the issue on github once I reach home. Sorry about the duplicate issue. -- Thanks &

By Amyth Arora <aroras....@...> · #538 ·

Re: Exception in thread "main" java.lang.OutOfMemoryError: Java heap space while loading bulk data

Well, whatever, but your stacktrace points to: String fileContents = new File(jsonPath).getText('UTF-8') Thus, your file does not fit in memory - either available system memory or within jvm max

By Robert Dale <rob...@...> · #529 ·

Re: Exception in thread "main" java.lang.OutOfMemoryError: Java heap space while loading bulk data

Hi Robert, The file is about 325 mb in size and contains info about a million vertices and a million edges. Also I forgot to mention that prior to testing on bigtable I tried the same script and file

By Amyth Arora <aroras....@...> · #537 ·

Re: Jetty ALPN/NPN has not been properly configured.

Looks like you've also filed a GitHub issue on this: https://github.com/JanusGraph/janusgraph/issues/450 — please use either the mailing list or GitHub to report issues, but not both, as duplication

By Misha Brukman <mbru...@...> · #528 ·

Re: Exception in thread "main" java.lang.OutOfMemoryError: Java heap space while loading bulk data

Looks like your file doesn't fit in memory. Robert Dale

By Robert Dale <rob...@...> · #527 ·

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space while loading bulk data

Hi Everyone, I am trying to upload some dummy data for testing purposes to janusgraph (google cloud bigtable backend). I have a groovy script as follows that I execute while running the gremlin

By Amyth Arora <aroras....@...> · #521 ·

Cache expiration time

Hi, I am trying to increase/disable the cache expiration time using the cache.db-cache-time property I changed the value to 0 and restarted the Gemlin server, but it seems it is not working (based on

By Ohad Pinchevsky <ohad.pi...@...> · #520 ·

Jetty ALPN/NPN has not been properly configured.

Hey, We have a mid-sized (10 million vertices, 5 billion edges) graph database (currently running on neo4j) at our organization. we are in the process of moving to JanusGraph with google cloud big

By Amyth Arora <aroras....@...> · #519 ·

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