JanusGraph

JanusGraph - Distributed, open source, massively scalable graph database.

JanusGraph

JanusGraph - Distributed, open source, massively scalable graph database.

9/22/2023

Possible Bug with Text.CONTAINS_REGEX & token toLowerCase

Hello, I think their is a bug with predicate textContainsRegex, during CloseableIterator "retainIfTrue.test(element)", element are filtered if they don't satisfies conditions. I have a vertex with property "firstName->Martine", while searching with this regex "Martin.?", ES found my vertex but while filtering to check other conditions (vertex status is active), regex is evaluated again and is returning false because value is tokenized in lower case while regex is case sensitive....

lnnwvr

9/21/2023

storage.parallel-backend-ops

Hello i am a bit confused wth the docu. Do i enable or disable storage.parallel-backend-ops? I have disabled the cql executor and configured my connections/requests but i don't know about parallel-backend-ops and also how to configure gremlin gremlinPool/threadPool accordingly?

Faraz

9/19/2023

Direct Search using Lucene

How to use query string so that it will directly search on lucene. I am trying this code but it is throwing me an error....

sessaid

9/18/2023

Sending multiple lines in the console to a remote server

Is there a way to send multiple line in the console to a remote server? I thought a backslash at the end of a line would work (it does work locally) but I get an exception. I'm trying this with the 3.7.0 console and the latest JG build for the server.

skyrocks.

9/14/2023

Graph object not available to create custom long id in remote server setup

I'm excited about the enhanced custom vertex id feature. When reading https://docs.janusgraph.org/master/advanced-topics/custom-vertex-id/, I found that the "graph" object is needed to invoke "graph.getIDManager().toVertexID(123L)". In a typical remote server deployment, we only depend on "janusgraph/gremlin_driver" and don't have access to the "graph" object. Looking at the "toVertexID()" and "fromVertexID()" functions they don't seem to make DB calls. Was there a reason this could not be extra...

HailDevil

9/12/2023

Different vertex Ids with exactly same properties

I am using Janusgraph 1.0.0-rc2 with Cassandra as a backend. I recently encountered an issue where I saw two different vertices with different vertex ID but have exactly same properties, Even when I have indexed the property as UNIQUE....

slygren

9/10/2023

Preservation of order for LIST property

Hi, Does janusgraph guarantee a preservation of order for a LIST cardinality property on query (i.e., FIFO)?

DezMaeth

9/5/2023

index convergence to REGISTERED failed

i'm trying to register an index called "id", it fails to register, when running mgmt.awaitGraphIndexStatus(graph, 'byId').status(SchemaStatus.REGISTERED).call() i get the logs of the process running and then ...

4j4y.

8/29/2023

Does the quintillion edges limitation stil exists after introducing custom vertex id support?

We have exhausted almost 25% of our ids after 6 months of using JG (edges are still below 100 billion), Was curious if this change related to custom-vertex-id remove the limitation on custom id? also does this mean this limitation as mentioned in the title will also get removed? Would also like to know when are we planning to release 1.0.0 stable release? https://docs.janusgraph.org/master/advanced-topics/custom-vertex-id/...

deepak8347

8/22/2023

Could not acquire new ID block from storage

Hello!! Hope you are having a good day!! What I am doing ?...

HailDevil

8/19/2023

StaleIndexRecordUtil.forceRemoveVertexFromGraphIndex not working

The job is getting successful, but I can still see the vertices in the graph. It is weird that even If I pass a non existent vertex ID, the job does not fail. any idea why such behavior? or am I missing something?...

HailDevil

8/18/2023

Check status of StandardScannerExecutor job

How can I check the status of the below job?

paull8147

8/14/2023

Problem with mixed index query : All property & hasId

Hello, i have a problem during a query using mixed index in order to call ElasticSearch "all" property. Everything works fine when i only use "has(label, key, value)" alone: index is called, but when i used "has(label, key, value).hasId(within(ids))" GraphCentricQuery is correctly built but it doesn't retrieve my vertex. Any idea why this doesn't work ? (I use or step in order to use JanusGraphStepStrategy to fold has container) thanks you for your help...

shivam.choudhary

8/14/2023

Impact of ID Pool Initialisation on Query Performance

Greetings everyone, We're currently operating a JanusGraph setup with cluster.max-partitions set at 1024 and ids.num-partition at 10. Our primary goal is to ensure high availability for the cluster instances. However, we've noticed that the initialization of the ID pool is causing disruptions, during server restarts. The root cause seems to be the initialisation of ID pool threads for each partition until every partition has a ID pool. Upon server restart, the ID pool is initialised based on write operations. Unfortunately, this process has been negatively impacting the performance of query execution. To mitigate this challenge, we're exploring the possibility of implementing an eager initialisation approach for the ID pool threads. Is there a way to achieve it?...

rydbirkjr

8/8/2023

JanusGraph fails on initial startup (cql-es)

Hi all, I have a problem that's been popping up once in a while regarding only the initial startup of Cassandra/ES/JanusGraph. Sometimes it fails with "table edgestore doesn't exist", or "table janusgraph_ids doesn't exist". However, if I restart the JG pod, it completes. To me, it sounds like some sort of race condition....

slygren

8/3/2023

Exhaust all paths between two or more vertices

Is there some way to go on a path finding mission with repeat().until() type construct that avoids the early stop observed while the until condition is first met? That is, without skipping .until() for .times().

4j4y.

8/3/2023

Standard way of restructuring of existing data

Hi folks we have usecase where we would like to restructure data present in a graph, for example we have existing graph with structure like this: <Node: User A> --<Edge--Pays>--<Node: Payment 1>--<Edge--Receives>--<Node: User B>, and using this existing data, we would like to add an direct edge from User A to User B for faster queries. Is there a standard way to achieve this?

slygren

8/2/2023

Find all paths between two vertices

Not sure this makes any sense, but here goes. Could someone please provide a solution to how one would avoid dead-end paths to be traversed, i.e., how can one avoid multistep traversals following .bothE().otherV() to return to self? Here's my non-working query `g.V().has('lbl', 'DexpiElement').has('tagname', 'tagA') ...

DezMaeth

7/31/2023

Is there a way to access the management from gremlin remote console?

mostly i need to be able to create vertex and edge labels dynamically from gremlin, is it posible?

DezMaeth

7/31/2023

What configuration i can use for the root.schema.default?

i know it's supposed to use "None" so it will require a schema, but in my use case i need a schema maker, i cant find a single example with the schema maker turned on.

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JanusGraph

JanusGraph - Distributed, open source, massively scalable graph database.

JanusGraph

JanusGraph - Distributed, open source, massively scalable graph database.