Introducing Neo4j Workspace We’re inviting you to check out Neo4j Workspace. Workspace combines our most powerful graph tools (Data Importer, Bloom, and Browser) all in one place to help you get up and running with graph databases faster. For experie...
The Neo4j Graph Platform includes the core database and all the technologies surrounding the database, making it useful and accessible for a lot of different users. When asking a question, please select a descriptive label that best matches your quer...
The main issue that i am trying to understand that is how a connected graph can be partitioned and sharded to scale horizontally. I have been looking at facebooks TAO db architecture. https://medium.com/coinmonks/tao-facebooks-distributed-database-fo...
Hi, my testing server running out of space because metrics folder is growing big. I can't see any option to disable the metrics in the neo4j.conf file. Metrics folder ( /var/lib/neo4j/metrics) around 4 gb, how to reduce or disable it! Version: 3.4.0 ...
Hello, I am playing with apoc triggers and would like to ask for an explanation regarding how cypher and apoc work in this particular case. I start out with the following nodes: CREATE (:Base:Element {layer: 0, position: 0}) CREATE (:Input {data: "11...
Hi, I have a hierarchy of node relationships like - Organisation -> Department -> System -> Function -> Port - > Request -> Response -> Parameter Now i retrieve the Parameter node like - MATCH p=()-[r:Parameter]->(b:checkoutby) RETURN p; However, ...
Hello, I am trying to import data into neo4j. i am having 1 million of records and i am inserting this data using Jar. this jar calling a method which inserting the data into neo4j . i am using Merge statement for that . but after inserting 50k recor...
Hi All, I am just wondering if we can perform Statistical modelling using graph algorithms and get the output directly using Cypher queries? Also is it possible with Neo4J to apply Machine Learning methods like Linear regression, Decision tree by usi...
My Neo4j Crushed and won't restart!! help! ubuntu@ip-10-0-32-44:/var/log/neo4j$ ulimit -n 1045590 2018-12-23 10:30:26.025+0000 INFO [o.n.k.i.i.s.f.FusionIndexProvider] Schema index cleanup job closed: descriptor=Index( GENERAL, :label[784](property...
Hello, I am having 2 GPU accelerated libraries ported to Java: https://gunrock.github.io/ - C based API https://github.com/rapidsai/cugraph - part of Nvidia large effort to bring common GPU accelerated framework to the wild (has python API, but unde...
Hi guys! I need some help with a operation in Neo4j. I have a relation like (c)-[a]->(u)-[v]->(p). Actualy i have a query return return c, u, COLLECT(v), p ... I made this logical to isolate [v] (Visit) and preserve a perspective to single result for...
I try to find a right queries, at moment from the browser. I have a simple graph with node dependencies like parent -[:depend]-> child, each node have a modification_date attribute. From the last child I want to return all the "younger" parent in rel...
A query that works just fine in the neo4j desktop browser does not return the expected results when ran through graphql and apoc procedures. Here is my schema in graphql byParent(id: Int): [movie] @cypher( statement: "MATCH (m...
Hello All, I am getting the above error when trying to run neo4j on Linux (Ubuntu)using: "systemctl start neo4j" Error: failed to issue method call: Unit neo4j.service not loaded. Also, I have checked for neo4j.service and could not find it anywhere ...
I have a simple model in which a Patient has many events. Each event has a start date and a category like 'medication'. It is normal for a patient to have 10s of events of each category. I would like to find patients where: a measurement event happen...
I asked the same question on Slack and they suggested me to move the discussion on Neo4j Community. How to optimize below Cypher? PROFILE MATCH (port:PhysicalPort) WHERE NOT (1 IN port.latest) WITH port MATCH (device:Device) WHERE NOT (1 IN ...
Hi, I'm new to neo4j and Cypher language. I've 3 tables and I'm trying to mass import their relationship. Table 1 ( Author_ID | Author_Name | (Other properties) ) Table 2 (Paper_ID | Paper_Name | (Other properties)) Table 3 (Subject | Relation | Obje...
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