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Questions tagged [memgraphdb]

Use this tag for questions related to Memgraph streaming graph database.

Memgraph is an open source graph database built for real time streaming data, compatible with Neo4j. It is an in-memory graph database that uses Cypher as a query language. Memgraph can be extended with graph algorithms that are part of Memgraph Advanced Graph Extensions (MAGE). Graphs can be visualized using Memgraph Lab application.

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Adding packages to memgraph transformation

I am writing a memgraph transformation in python. When I import modules such as "requests" or "networkx", the transformation works as expected. I have avro data w/ schema registry, so I need to deserialize it. I followed the memgraph example here:…
Avocado
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What does separate curly bracket means in Cypher?

I have read the document, and i found that curly brackets are normally used to form a subquery or it can be used to describe the properties of a node or relationships. But i notice that some times curly brackets are used separately, and i can't…
Frisia
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How can I load MAGE query modules in Memgraph?

How can I load MAGE query modules in Memgraph? Is there a difference if a query module is written in Python or C?
KWriter
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What is the difference between Memgraph Docker images?

I can see that Memgraph has a couple of Docker images available on the Docker Hub. There is: memgraph-platform, memgraph-mage and memgraph image. What is the difference between those three?
KateLatte
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Does Memgraph have replication and how it works?

I was checking Memgraph docs and wondering whether Memgraph has replication and why is that feature even useful? Is it for high availability? Does it allow queries to be parallelized? Something else?
KateLatte
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How can I backup a Memgraph database?

I'm running a Memgraph within Ubuntu WSL. I want to make a backup of my database. I'm having trouble locating the database files. I've found the question that addresses Memgraph platform, but I need some solution for WSL.
user17781575
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Manually save memgraph snapshot

As said in /etc/memgraph/memgraph.conf: # Storage snapshot creation interval (in seconds). Set to 0 to disable periodic # snapshot creation. [uint64] --storage-snapshot-interval-sec=300 Which means snapshots are made only automatically. Is there a…
ntreq
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Cypher BFS with multiple Relations in Path

I'd like to model autonomous systems and their relationships in Graph Database (memgraph-db) There are two different kinds of relationships that can exist between nodes: undirected peer2peer relationships (edges without arrows in image) directed…
xuma202
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How do I solve this Memgraph SSL connection error?

I am trying to run memgraph 1.2.0 - with docker and getting the following SSL connection error - ERROR services/memgraph/tests/collapse_test.py::test_incorrect_pseudo_node - neobolt.exceptions.SecurityError: Failed to establish secure connection to…
Alex.K
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Unable to install pymgclient for memgraphdb

I am trying to install pymgclient for memgraphdb. I am following the instructions mentioned at this link: https://memgraph.github.io/pymgclient/introduction.html In the first step, it says we have to run the following commands inside the source…
Usman Malik
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Data import into MemGraph Lab Beta version

I have been trying to import data into MemGraph Lab Beta version using the datasets and code provided here : https://memgraph.com/docs/memgraph/v0.14.1/how_to_guides/import-data/ I have used the CSVs provided as follows Store the following in…
Katya Pas
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Unable to connect to Memgraph

I'm trying to connect to my MemgraphDB instance using mgconsole but I'm unable to connect to my DB instance. I'm on an Apple M1 and wanted to run memgraph on my local machine. I followed the "Getting started" documentation and did the following…
Manav Chirania
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Reseting the Memgraph internal ID

is there any way to delete all the data in Memgraph and reset the next internal ID to be created to zero? I've noticed that every node that is created gets the automatically new ID. When I delete the node that ID is not used again but a new one is…
kontrapschoen
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What's the difference between Memgraph main and replica instances?

What exactly is the difference between Memgraph main and Memgraph replica instances. If replica is used when the main fails, they should be identical, right? Is that really so?
Moraltox
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I have a problem wiht installing GQLalchemy on Mac

On my laptop I'm running MacOS. I use ZSH as my shell. I'm new to Python world and to Memegraph. I'm just setting up my dev enviroment. When I try to install GQLAlchemy using PIP pip install gqlalchemy[arrow] but it doesn't work for me. What am I…
Elwood Kharson
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