Re: [Neo4j] Scale limits when storing properties on relationships

2016-08-08 Thread John Fry
Hello Michael, the graph is used as follows: - ~10M nodes; ~200M relationships - Each relationship requires multiple floating properties that can be considered connecting strength weights. These multiple weights make up a weight vector - upto ~20 weights per vector - The weight

Re: [Neo4j] Cypher results without repeated sub-paths

2016-08-08 Thread Alan Robertson
Hi Jaroslav, Although I need more sleep at the moment - your problem seems to have similar issues to my question about a "query which returns a subgraph" problem which I've been looking at... The problem I have with the * operator is that it can is *very* slow. You also complain that it does redu

Re: [Neo4j] I want a query which returns a subgraph...

2016-08-08 Thread Alan Robertson
I had written up my problem here too: http://assimilationsystems.com/2016/07/03/assimilation-subgraph-queries/ Here's a thought which occurred to me while sleeping last night... The two ways I've done it are: 1. shortest paths from initial node set 2. all paths As noted in the original em

[Neo4j] Cypher results without repeated sub-paths

2016-08-08 Thread Jaroslav Ramba
Hi, I have graph of flights. I want find all flights between two airports without cycles. How can I clean/disable result of cycles = repeated sub-paths A-->B-->A-->B. OK *A-->B-->A* NOT OK *A-->B-->A-->B* MATCH path=(source:Airport)-[flights:FLIGHT*]->(destination:Airport) Thank you for hel

Re: [Neo4j] Re: exception shutting down db after 200M property writes

2016-08-08 Thread 'Michael Hunger' via Neo4j
Veesion 2.0.3 is very old and out of support Any chance that you could update to a recent version like 3.0.4? Also 2.0.3 doesn't have a page cache, so sth is off. I think this issue was fixed recently. >>> Caused by: java.lang.IllegalStateException: Cannot close the PageCache >>> while file

Re: [Neo4j] Scale limits when storing properties on relationships

2016-08-08 Thread 'Michael Hunger' via Neo4j
Hi John, Do you have more details on the properties that you add as well as your graph model and queries? Without these details it will be hard to help. It sounds a bit as if your property heavy relationships might be nodes in hiding. Cheers Michael Von meinem iPhone gesendet > Am 08.08.20