4 ms·

Memgraph DB 1.1

33 points by karimtr 6y ago

karimtr 6y ago
Hey HN! We've just released this blog post exploring some of the changes we made over the past few years that helped us reduce memory usage by as much as 50% and improve throughput towards near-linear scalability. We'd love to get your thoughts. Cheers!
- tincholio 6y ago
  I just tried to use it via the Java API (using the dockerized memgraph and neo4j driver, as indicated in your page), but there seems to be some SSL issues (self-signed certs). If I disable the SSL when running memgraph, it seems to connect, but the neo4j driver complains about it being an "unknown server". These checks are present in the newer neo4j drivers. Is the Java API supposed to be used with an older neo4j driver?
  - mbuda 6y ago
    What is the exact Bolt driver version? Memgraph v1.1 works with Bolt v1, and the last working version of Java Bolt driver is v1.6.4. Memgraph v1.2 is going to be released soon and it will include support for Bolt v4.1. Could you please provide more details about the actual setup?
    - tincholio 6y ago
      Oh, ok, that must be the issue, then. The driver I have is 4.1.1. I'll check out 1.6.4 later today and give that a go.
enryu 6y ago
It would be interesting to see how these benchmark results compare to other graph databases like neo4j.
- karimtr 6y ago
  That's a good point. Benchmarking different systems is always tricky to get right, but we'll get something out soon. The focus of these benchmarks was to explain to our existing community how we improved things and share with the broader software engineering community has worked for us in the hope it could help others working on graph projects.
  - rch 6y ago
    Try to include Dgraph, if it's similar (I'm not familiar with Memgraph).
    - karimtr 6y ago
      Dgraph is actually very different on many aspects like data model, query language, even overall focus & target use-cases. In my opinion it will be tricky to have a fair comparison. You can have a look at the benchmarks they published against Neo4j. It seemed like there was a lot of disagreements on both side. What other graph databases would you like us to have a look at?
rambojazz 6y ago
Is this also an RDF store? And, well, is it open source?
- karimtr 6y ago
  No, it's not an RDF store. Memgraph is a support the Label Property Graph model. It's not open source, but you can use the free community version: https://memgraph.com/download https://memgraph.com/download
  - karimtr 6y ago
    *supports

33 points by karimtr 6y ago

Hey HN! We've just released this blog post exploring some of the changes we made over the past few years that helped us reduce memory usage by as much as 50% and improve throughput towards near-linear scalability. We'd love to get your thoughts. Cheers!

tincholio 6y ago
I just tried to use it via the Java API (using the dockerized memgraph and neo4j driver, as indicated in your page), but there seems to be some SSL issues (self-signed certs). If I disable the SSL when running memgraph, it seems to connect, but the neo4j driver complains about it being an "unknown server". These checks are present in the newer neo4j drivers. Is the Java API supposed to be used with an older neo4j driver?
- mbuda 6y ago
  What is the exact Bolt driver version? Memgraph v1.1 works with Bolt v1, and the last working version of Java Bolt driver is v1.6.4. Memgraph v1.2 is going to be released soon and it will include support for Bolt v4.1. Could you please provide more details about the actual setup?
  - tincholio 6y ago
    Oh, ok, that must be the issue, then. The driver I have is 4.1.1. I'll check out 1.6.4 later today and give that a go.

enryu 6y ago

It would be interesting to see how these benchmark results compare to other graph databases like neo4j.

karimtr 6y ago
That's a good point. Benchmarking different systems is always tricky to get right, but we'll get something out soon. The focus of these benchmarks was to explain to our existing community how we improved things and share with the broader software engineering community has worked for us in the hope it could help others working on graph projects.
- rch 6y ago
  Try to include Dgraph, if it's similar (I'm not familiar with Memgraph).
  - karimtr 6y ago
    Dgraph is actually very different on many aspects like data model, query language, even overall focus & target use-cases. In my opinion it will be tricky to have a fair comparison. You can have a look at the benchmarks they published against Neo4j. It seemed like there was a lot of disagreements on both side. What other graph databases would you like us to have a look at?

rambojazz 6y ago

Is this also an RDF store? And, well, is it open source?

karimtr 6y ago
No, it's not an RDF store. Memgraph is a support the Label Property Graph model. It's not open source, but you can use the free community version: https://memgraph.com/download https://memgraph.com/download
- karimtr 6y ago
  *supports