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  • w

    wey

    10/27/2022, 1:58 PM
    Rama! Welcome to the NebulaGraph Community 🙂
  • h

    Hera Han

    11/01/2022, 9:28 AM
    Hi guys, NebulaGraph Community Meeting will be held tomorrow 🎉 Staff Engineer @vesoft, Dr.Chen will share the topic: Refactoring and data structure evolution of NebulaGraph Binding Table. Welcome to find out more and join us:https://www.meetup.com/nebulagraph/events/288943582/
    ❤️ 2
  • z

    Zhong TIAN

    11/02/2022, 7:46 AM
    Hi, Guys, join our monthly community meetup today at 1330 UTC to learn about new progress at #NebulaGraph, an #opensource distributed #graphdatabase. Also, enjoy our native developer, Dr. Xuntao CHENG, sharing his recent work on NebulaGraph BindingTable. https://us02web.zoom.us/meeting/register/tZ0rcuypqDMvGdLuIm4VprTlx96wrEf062SH
  • w

    Will Droste

    11/03/2022, 2:20 PM
    Is there a recording? ^^
    w
    • 2
    • 2
  • j

    Jeremy Simpson

    11/09/2022, 7:55 PM
    I was wondering what scheduler pods did in nebula-operator. There doesn’t seem to be any documentation on it that I could find
    ❤️ 1
    w
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  • w

    Will Droste

    11/13/2022, 4:14 PM
    I was looking at the Java client and I was wondering if this is true from the server perspective, it appears there’s a 1-to-1 between connection and server session. I know that sessions though remain even after all connections are closed. So can you just pass in the
    sessoinId
    in to any connection? Is the session ID unique enough not be a security concern. For instance if you make a connection to Nebula can somebody guess a
    sessionId
    just be doing
    YIELD 1
    statements?
    ❤️ 1
  • w

    Will Droste

    11/13/2022, 4:15 PM
    Also though from a resource perspective it seems then I can re-connect and just keep using the same session ID, which is good considering that the default expiration for a session is 8hrs. From a security perspective though if I can reuse the session ID and not have to auth then there should be additional protections in place like this session came from this IP addresss.
    w
    • 2
    • 9
  • w

    Will Droste

    11/15/2022, 9:42 PM
    For Nebula 3.0.2+ i see support for ARM on the nebula-cluster and that's great because I have team members w/ M1 macs however when you try the
    docker-compose
    to build a cluster locally the
    nebula-console
    is still amd64 and also its says it fails to connect
  • w

    Will Droste

    11/15/2022, 9:43 PM
    Here's the output
  • w

    Will Droste

    11/15/2022, 9:43 PM
    [+] Running 11/11
     ⠿ Network v3_3_nebula-net     Created                                                                                                        0.0s
     ⠿ Container v3_3-metad2-1     Created                                                                                                        0.1s
     ⠿ Container v3_3-metad1-1     Created                                                                                                        0.1s
     ⠿ Container v3_3-metad0-1     Created                                                                                                        0.1s
     ⠿ Container v3_3-storaged2-1  Created                                                                                                        0.1s
     ⠿ Container v3_3-storaged1-1  Created                                                                                                        0.1s
     ⠿ Container v3_3-storaged0-1  Created                                                                                                        0.1s
     ⠿ Container v3_3-graphd1-1    Created                                                                                                        0.1s
     ⠿ Container v3_3-graphd-1     Created                                                                                                        0.1s
     ⠿ Container v3_3-graphd2-1    Created                                                                                                        0.1s
     ⠿ Container v3_3-console-1    Created                                                                                                        0.0s
    Attaching to v3_3-console-1, v3_3-graphd-1, v3_3-graphd1-1, v3_3-graphd2-1, v3_3-metad0-1, v3_3-metad1-1, v3_3-metad2-1, v3_3-storaged0-1, v3_3-storaged1-1, v3_3-storaged2-1
    v3_3-console-1    | 2022/11/15 21:33:58 Fail to initialize the connection pool, host: graphd, port: 9669, failed to open connection, error: failed to open transport, error: dial tcp 172.22.0.10:9669: connect: connection refused 
    v3_3-console-1    | panic: Fail to initialize the connection pool, host: graphd, port: 9669, failed to open connection, error: failed to open transport, error: dial tcp 172.22.0.10:9669: connect: connection refused 
    v3_3-console-1    | 
    v3_3-console-1    | goroutine 1 [running]:
    v3_3-console-1    | log.Panicf(0xc00017a0c0, 0xbc, 0x0, 0x0, 0x0)
    v3_3-console-1    | 	/usr/local/go/src/log/log.go:345 +0xc0
    v3_3-console-1    | main.main()
    v3_3-console-1    | 	/usr/src/main.go:549 +0x8d0
    v3_3-console-1 exited with code 2
  • w

    Will Droste

    11/15/2022, 9:44 PM
    https://github.com/vesoft-inc/nebula-docker-compose
    g
    w
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  • h

    H3cT0R

    11/19/2022, 4:11 PM
    Hi I'm trying to use cpp client, via the Session Connection example. But hit a blocker. Is there any documentation or wiki, which I can refer to.
    w
    • 2
    • 1
  • c

    Chak-Pong Chung

    11/21/2022, 1:11 AM
    Hi! what does nebula use to import property data of parquet format into memory?
    w
    m
    • 3
    • 8
  • w

    wey

    11/23/2022, 10:57 AM
    Dear all We will have an ad-hoc meeting with Associate Professor Salihoğlu from UWaterloo to share the new OpenSource Graph DBMS: Kùzu • https://t.co/1KwutXlWti • passcode: 105729 Title: Kùzu Graph Database Management System Abstract: In this talk, I will present the Kùzu graph database management system (GDBMS): an embeddable and feature-rich open-source DBMS that is optimized for ease of use, performance, and scalability. Datasets and workloads of popular applications that use GDBMSs require a set of storage and query processing features that relational DBMSs (RDBMSs) do not traditionally optimize for. These include optimizations for: (i) many-to-many (m-n) joins; (ii) cyclic joins; (iii) recursive joins; (iv) semi-structured data storage; and (v) support for universal resource identifiers. Kùzu aims to integrate state-of-art storage, indexing, and query processing techniques to highly optimize for this feature set. I will start by presenting the overall vision of Kùzu and then talk about the novel join operators in the system that performs joins using compressed factorized relation representations. In its current usage vision, Kùzu aims to be the go-to DBMS for building graph data science pipelines. Kùzu is actively being developed as an embeddable and fully functional open-source DBMS and is released under a permissible license. Bio: Semih Salihoğlu is an Associate Professor and a David R. Cheriton Faculty Fellow at University of Waterloo. His research focuses on developing systems for managing, querying, or doing analytics on graph-structured data. His main on-going systems project is Kùzu, which is a new graph database management system that integrates novel storage, indexing and query processing techniques. He holds a PhD from Stanford University and is a recipient of the VLDB 2018 Best Paper and the VLDB 2022 Best Experiments and Analysis Paper awards.
  • d

    Dominik

    11/24/2022, 4:45 PM
    Hi everyone. I ran into a problem starting nebula graph. metad and storaged always exit immediately due to some errors.
    w
    m
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  • w

    Will Droste

    11/28/2022, 3:43 PM
    @wey is there's a road map for getting this working
  • w

    Will Droste

    11/28/2022, 3:43 PM
    It is not yet supported to add property conditions when matching vertices with multiple tags.
    w
    • 2
    • 2
  • w

    Will Droste

    12/08/2022, 8:42 PM
    Got question is there any plan to support byte[] data in nebula? From the graph? The thrift api supports and I was thinking of encrypted values.
    w
    • 2
    • 11
  • p

    porsche

    12/13/2022, 5:54 AM
    Has anyone tried to set Nebula option enable_partitioned_index_filter and max_edge_returned_per_vertex?
    w
    • 2
    • 1
  • p

    porsche

    12/13/2022, 5:55 AM
    Using Nebula helm charts?
  • w

    Will Droste

    12/14/2022, 6:58 AM
    @wey with the absence of a unique constraint or index.. is there a good
    merge
    type query that can try to reduce the possibly of duplicates.. where Nebula does a search before an insert.
    g
    w
    • 3
    • 9
  • p

    porsche

    12/27/2022, 1:53 AM
    Did anyone try log clean up using Cronjob? Can I get code snippet please?
    w
    • 2
    • 4
  • c

    Chak-Pong Chung

    01/07/2023, 12:06 AM
    hello! anyone here tried using ldbc to benchmark nebula?
    w
    • 2
    • 1
  • c

    Chiranjeevi

    02/02/2023, 5:59 AM
    Hi I have installed nebulagraph standalone for linux by building from source. Graph service is running in 127.0.0.1:9669. However I'm not able to make the nebula client work. I'm trying the exmaple code SessionExample.cpp but the execution gets stuck in ConnectionPool init function and doesnt proceed after that. Aybody know how to fix this issue? Thank you
    w
    • 2
    • 4
  • a

    Alex Kumundzhiev

    02/15/2023, 1:00 PM
    Hello, do you have estimations for maximum data size with Nebula? Such as N TB graph tested, number of V, E
    h
    • 2
    • 1
  • s

    Sơn Trần Thái

    02/21/2023, 8:52 AM
    Hi everyone, Why The
    WHERE
    clause cannot be used in an
    OPTIONAL MATCH
    clause in version 3.4 ?
  • d

    Duyên Đỗ (D Duck)

    03/06/2023, 3:16 AM
    I want to rebuild the new index, but when the rebuild fails, it is recorded in the logs. Hope everyone supports E20230306 10:02:49.626945 2099 StorageAccessExecutor.h:39] InsertEdgesExecutor failed, error E_EDGE_NOT_FOUND, part 2 E20230306 10:02:49.627936 2094 QueryInstance.cpp:137] Storage Error: Edge not found. E20230306 10:03:13.974483 2094 StorageAccessExecutor.h:39] InsertEdgesExecutor failed, error E_EDGE_NOT_FOUND, part 12 E20230306 10:03:13.975497 2094 QueryInstance.cpp:137] Storage Error: Edge not found. E20230306 10:03:13.987063 2113 StorageAccessExecutor.h:39] InsertEdgesExecutor failed, error E_EDGE_NOT_FOUND, part 12 E20230306 10:03:13.987349 2109 QueryInstance.cpp:137] Storage Error: Edge not found. E20230306 10:03:14.006799 2099 StorageAccessExecutor.h:39] InsertEdgesExecutor failed, error E_EDGE_NOT_FOUND, part 2 E20230306 10:03:14.007014 2099 QueryInstance.cpp:137] Storage Error: Edge not found. E20230306 10:03:15.773773 2103 StorageAccessExecutor.h:39] InsertEdgesExecutor failed, error E_EDGE_NOT_FOUND, part 2 E20230306 10:03:15.774618 2103 QueryInstance.cpp:137] Storage Error: Edge not found.
    u
    h
    • 3
    • 3
  • s

    Sergey Chistyakov

    03/06/2023, 11:42 PM
    Hi all! I've never worked with Nebula before and I'm not quite sure how to get the Community version in Azure and if I have to pay for the license. If you have any experience of deploying to azure or any references, I would be very grateful!
    k
    • 2
    • 3
  • j

    Julius Kiesian

    03/20/2023, 12:19 PM
    Hi. is this repo compatible with the latest version of nebula graph? https://github.com/nebula-contrib/ngbatis
    w
    • 2
    • 1
  • j

    Julius Kiesian

    03/20/2023, 12:20 PM
    Is there anything similar to ngbatis but for rust or golang?
    w
    • 2
    • 1
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j

Julius Kiesian

03/20/2023, 12:20 PM
Is there anything similar to ngbatis but for rust or golang?
w

wey

03/20/2023, 4:30 PM
There is one GO Orm for NebulaGraph contributed by zhihu(Chinese version of quora) https://github.com/zhihu/norm
👍 1
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