Stack Overflow
Stack Overflow

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
0
votes
0 answers

NebulaGraph Studio v3.7 reports Websocket URL empty error under k8s traefik gateway route

The NebulaGraph Studio version is v3.7. Here is my traefik and ingress configuration --- apiVersion: traefik.containo.us/v1alpha1 kind: Middleware metadata: name: default-headers namespace: database spec: headers: browserXssFilter: true …
Lisa Liu
  • 139
  • 1
  • 6
0
votes
0 answers

After using limit, it was found that the limit does not seem to be pushed down. Is there any way to optimize this in NebulaGraph Database

The version of NebulaGraph is v3.4.1 and the deployment method is distributed. The installation method is RPM. The specific problem is as follows: The original query statement is to find the data within one hop of the node, but there is a large…
Lisa Liu
  • 139
  • 1
  • 6
0
votes
0 answers

Data recovery failed on NebulaGraph Database

Nebula version is 3.4.1. Deployment method is distributed. Installation method is RPM. Hardware information: CPU and memory information: 32c, 128GB. After successfully backing up with a backup tool, I encountered a problem when trying to restore the…
Lisa Liu
  • 139
  • 1
  • 6
0
votes
0 answers

ipython-ngql initialization error in notebook on NebulaGraph Database

The version of Nebula is 3.4.1, deployed in a distributed manner and installed via RPM. The version details are as follows: Python 3.8, Nebula 3.4.1, and ipython-ngql 0.5.0. I run it as follows, but the error is reported. %load_ext ngql %ngql…
Lisa Liu
  • 139
  • 1
  • 6
0
votes
0 answers

Nebula v3.5.0 Graphd crash down on NebulaGraph Database

The version of Nebula is 3.5.0. It is deployed in a distributed manner with 3 nodes. The installation method is RPM. The disk is Alibaba Cloud PL0 ESSD. The CPU and memory information is 2C16G. The problem is that when we execute a Match Path…
Lisa Liu
  • 139
  • 1
  • 6
0
votes
0 answers

Problem about datetime data type in ngql queries on NebulaGraph Database

The version of NebulaGraph is 3.2.0. It is deployed as a standalone and installed via RPM. Problem description: When using the MATCH statement to query, the "accident_time" property in the query result is of type datetime. If I want to convert this…
user21630752
0
votes
0 answers

Neubla3.4.1 upsert statement processing on NebulaGraph Database

I use the NebulaGrpah version 3.4.1. upsert edge on friend "14"->"15"@31 set `descr`=SPLIT(descr,",")+",1" The above statement with the prompt "Storage Error: Invalid data, may be wrong value type." indicates that there is an issue with the data…
Lisa Liu
  • 139
  • 1
  • 6
0
votes
0 answers

NebulaGraph Database: Bug in MATCH statement query in NebulaGraph 3.5.0

After installing Nebula 3.5.0, a MATCH statement that was previously working in 3.4.1 is now returning an error. The statement is: MATCH p=(v) - [e * 1…2]- (v2) WHERE id(v) IN [“66185761163685974X”] RETURN p LIMIT 100. When running in 3.5.0, the…
user21630752
0
votes
0 answers

How to convert data retrieved through Nebula API using Python into dataframe format on NebulaGraph Database?

Here are some details: NebulaGraph version is v3.4.0 and the cluster includes 3 machines. My problem is that how to convert data read by Python to the dataframe format? def result_to_df(result: ResultSet) -> pd.DataFrame: """ build list for…
Lisa Liu
  • 139
  • 1
  • 6
0
votes
0 answers

Does NebulaGraph support split function?

Nebula 3.4.1, query statement as below: upsert edge on friend "14"->"15"@31 set descr=SPLIT(descr,",")+",1" The above statement prompts "Storage Error: Invalid data, may be wrong value type." I want to process the descr field by splitting it and…
idelle
  • 3
  • 2
0
votes
0 answers

NebulaGraph Database: fixed_string will report an error when creating indexes larger than 256

My nebula version is 2.6.1 which is deployed in Cloud. And the installation way is RPM When I create an index which is larger than 256, the fixed_string will report an error. Can this limit be removed? ALTER TAG test_tag ADD(test…
user21630752
0
votes
0 answers

Use Docker to install nebula 3.5.0 or 3.4.0 by spark-connector 3.4.0 to read and write data, it reports error on NebulaGraph Database

Some details are as follows: nebula version is 3.5.0 or 3.4.0 Deployment method is Standalone Installation is by Docker When I use Docker to install nebula 3.5.0 or 3.4.0 by spark-connector 3.4.0 to read and write data, it reports errors Exception…
Lisa Liu
  • 139
  • 1
  • 6
0
votes
0 answers

NebulaGraph Database: Error shows when executing lookup on statement: -1005:StorageMemoryExceeded: (-3600)

The version is v3.4.1. I want to find nodes that match these properties When LIMIT is restricted, it can return normally: LOOKUP ON person WHERE person.aa==1 AND person.bb==1 YIELD id(vertex) | LIMIT 50. LOOKUP ON person WHERE person.aa==1 AND…
Lisa Liu
  • 139
  • 1
  • 6
0
votes
0 answers

Does deleting and then adding a tag reduce query speed

Due to some reasons, I have to first label a large amount of data, and then recalculate the data and re-label based on the new data within a certain period (such as one week). The query I use is as follows: lookup on person yield id(vertex) as id |…
MarieS
  • 1
0
votes
0 answers

When downloading SST files in Nebula 3.5.0, the error "E_INVALID_JOB" is reported

I have used Nebula 3.4.0 to import SST files before, and the operation process is the same as before. After reinstalling 3.5.0, I encountered this problem. When using Nebula 3.5.0 to download SST files, the error "E_INVALID_JOB" is reported. The…
idelle
  • 3
  • 2
1 2 3
…
18 19