[Neo4j] path finding using OSM ways

2011-05-30 Thread bryce hendrix
I am finally getting back to experimenting with Neo4j. Because it has been a while since I last looked at it, I've forgotten just about everything. I want to start with something simple, is there any sample code which does A* path finding over OSM ways? Thanks, Bryce __

[Neo4j] REST API & LuceneTimeline

2011-05-30 Thread Matt Luongo
Forgive me if this is a foolish question. I'm really excited about using the LuceneTimeline in our product. I see that I can create it via "type":"timeline" in the REST interface. I'm not sure, though, how to add nodes to the timeline- it seems like you add things to a timeline by specifying just a

Re: [Neo4j] performance issues with ubuntu

2011-05-30 Thread Rick Bullotta
Hi, Jim. Not really thinking of benchmarks, which I agree are tricky to define and even trickier to standardize. Plus, given the nearly infinitely cool things you can do with neo, it borders on impossible. Rather, I'm just thinking of wikifying some of the platform specific best practices and

Re: [Neo4j] performance issues with ubuntu

2011-05-30 Thread Jim Webber
Hi Rick, I concur that we should perhaps have some perf figures, but it's one of those things that's easier said than done. For instance, right now we have performance tests running as part of the Windows/Linux/Mac continuous build and we will fail the build if we drop on those numbers. Yet cr

Re: [Neo4j] performance issues with ubuntu

2011-05-30 Thread Rick Bullotta
I think it would be very helpful to the neo community for the neo team to do some testing and benchmarking on a variety of commonly used OS platforms and make specific suggestions for tuning and "known issues". It seems that platform specific io, threading and memory issues are what lead to per

Re: [Neo4j] performance issues with ubuntu

2011-05-30 Thread Marco Gerber
Hello everybody After profiling the application I found the bottleneck in my application. Each traversal is running within a transaction and with a likelihood of 50% a property is getting written on every node on the traversal's path. Note, that the traversal's path has a depth of ~8 nodes. Thi

Re: [Neo4j] Announcing Neo4j 1.4 M03 “Kiruna Stol”

2011-05-30 Thread Balazs E. Pataki
Hi Mattias, thanks for the clarification. The selective load of relationships by direction and/or type would be really nice, hope it will be considered some day. I also notified that 1.4 M03 now uses Lucene 3.1. Great! :-) Regards, --- balazs On 5/27/11 5:25 PM, Mattias Persson wrote: > 2011/

Re: [Neo4j] finding commonalities between people

2011-05-30 Thread Marcelo Barbudas
I'm hoping you'll have some free time and are in the mood to fix the build today:) And then I'll owe you a beer. On 05/30/2011 06:09 AM, Peter Neubauer wrote: > Awh, > the build system right now is screwed up, so the latest changes are not > published, and I worked on this last night. I suggest b

Re: [Neo4j] performance issues with ubuntu

2011-05-30 Thread Marco Gerber
Hi Peter Thank you for your answer. A node contains +/- 4 Strings with on average 50 characters. I run the tests around 50 times without interruption. I also run the linux performance benchmark as described here [1]. After setting the sysctl values as described, the benchmark reached half of th