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Questions tagged [nebula-graph]

NebulaGraph is an open source graph database solution. Use this tag for any questions that relate to using NebulaGraph as the database of your project. Any bugs or feature requests should be reported through the Nebula Graph GitHub issue tracker.

NebulaGraph is an open-source distributed graph database solution.

Use this tag for any questions relating to using NebulaGraph as your project's graph database. Any bugs or feature requests should be reported through the NebulaGraph GitHub issue tracker.

Find more about NebulaGraph Database at:

274 questions
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How to resolve the error `Storage Error E_RPC_FAILURE` when querying NebulaGraph?

I try a simple query in NebulaGraph GO FROM 123 OVER Invest | yield count(*) enter image description here I think the result will be tens millions. But an error occurs. Is my memory not enough?
user13726945
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How to solve the problem vertex conflict in NebulaGraph Database?

When I update some vertices with NebulaGraph, it gives the hint "vertex conflict". Want to know why? I checked every operation and find nothing. I checked every step and operation during the process. Hope to know why this hint is given and how to…
Lisa Liu
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nebula integration test with java

I am a java developer in my project, I want to have an integration test with nebula I want to know more about samples and best practices for Seed info in my DB with the Factory then Assert them. is there any nice package or module or library that…
saber tabatabaee yazdi
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NebulaGraph Database: How to get all the vertices of each tag?

I want to get all the vertices of each tag in the Nebula Graph Database. I tried using fetch prop on player * yield properties(vertex) to get the results, but this was not possible. (root@nebula) [basketballplayer]> fetch prop on player * yield…
Cooper
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NebulaGraph Database: Can I use the lookup on edge clause to filter rank?

Rank can be filtered when I use the match clause: MATCH (n)-[r:follow]->(n2) WHERE rank(r) == 1 RETURN edge AS e But error appears when using the LOOKUP ON clause: LOOKUP ON follow WHERE rank(edge) == 1 YIELD edge AS e Can I use LOOKUP to filter…
黄凤仙
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NebulaGraph database on AWS: Is there a way to fast deploy NebulaGraph database in my AWS virtual network?

I have a experimental bot App in my AWS invironment, and I'd like to try to enhance it with a graph database. For now I located the open source graph database NebulaGraph. But it has a tool set with quite a few applications, and it is not so easy to…
randomv
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Monitoring NebulaGraph K8s resources

We want to extend our existing monitoring to include Nebula resources such as node, service and space. How can we do this, can you please point me to any documentation
user19733404
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execute command in nebula studio to create vertex item in database

as mentioned in nebula documentation here : https://docs.nebula-graph.io/1.2.0/manual-EN/2.query-language/1.data-types/data-types/ nebula> INSERT VERTEX school(name, create_time) VALUES hash("new"):("new", "1985-10-01 08:00:00") error…
saber tabatabaee yazdi
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login error when nebula studio want to connect nebula graph docker instance

I have nebula graph instances as docker-machine and those worked as well. I want to connect via nebula graph studio Version：v3.5.0 to my instance there are 2 ways: 1- using graphd:[port] like this graphd:9669 2- using ip:port like this:…
saber tabatabaee yazdi
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nebula graph studio error when create tag from console link

I have nebula graph as many instance of dockers on my pc. this is my project, I'm using nebula graph studio docker image to access data. i can create tags and edges from java to this space and worked ok. i want to browse my space after connecting to…
saber tabatabaee yazdi
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What kind of error is E_OUTDATED_TERM(-3071)?

-1005:Storage Error: part: 17, error: E_OUTDATED_TERM(-3071). When does the -3071 error occur? What does Out-of-date heartbeat received from the old leader (the new leader has been elected)…
user19733404
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How can I only save edges with the highest and lowest ranks in graph database?

There are multiple edges of the same type between two nodes, distinguished by different ranks. How can we only keep the edges with the highest and lowest ranks? The rank of the graph is defined by time. How can I identify the highest and lowest rank…
Lisa Liu
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Will there be an impact on the graph database if multiple SUBMIT JOB STATS are carried out simultaneously?

NebulaGraph Version: 3.1.0 Deployment method: distributed / single machine Does submitting multiple SUBMIT JOB STATS tasks at the same time affect the gallery? We need to calculate the number of points and edges of each graph dataset. But if I have…
user20209636
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NebulaGraph Database: How to write data with spark-connector in pyspark?

In the example, I saw the way of writing data in scala. Is there a way to write nebulagraph data in python? /spark/bin/pyspark --driver-class-path nebula-spark-connector-3.0.0.jar --jars nebula-spark-connector-3.0.0.jar df = spark.read.format( …
user19733404
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Elastic Search Conflict with Spark Connector, rest high level client no such field error

I am using elasticsearch version 7.9.2, and it is conflicting with nebula spark connector, a spark connector for nebula graph. I have seen cases where spark conflicts with elasticsearch, but with no existing solution. Failed to instantiate…
sim
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