Re: [Neo4j] Slightly off topic...neo4jclient

2011-10-26 Thread Tatham Oddie
Which one? If you're referring to http://hg.readify.net/neo4jclient for .NET, then Romiko and myself both hang out on this list. -- Tatham -Original Message- From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On Behalf Of Christian Straight Sent: Thursday, 27 Oc

[Neo4j] Slightly off topic...neo4jclient

2011-10-26 Thread Christian Straight
I evaluating neo4jclient...does anyone know about an email list supporting discussions on this? Thnx, Christian .:. Typed with thumbs and sent from my HTC Evo ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user

Re: [Neo4j] 1.5M02 failed to start on reboot

2011-10-26 Thread Nuo Yan
Have you checked logs? What was the failure you saw? In an non-clean shutdown, the next time it starts it would try to recover the indicies. It takes time, and if the timeout value you set (for starting the service) is less than the time needed for the recovery, the server would have trouble start

[Neo4j] 1.5M02 failed to start on reboot

2011-10-26 Thread KanTube
I encountered a odd error. I installed several windows updates (it was Tuesday :) ) and then proceeded to reboot my servers (three in total). on one server the Neo4j service did not restart. I then deleted the data directory and the service started correctly. I then moved the data from another

Re: [Neo4j] Spring Data Graph / Neo4j – Problems with OO Inheritance & Polymorphism relation semantics

2011-10-26 Thread Michael Hunger
Angelos, I'm currently at SpringOne and quite swamped, I get back to you as soon as possible. Michael Am 26.10.2011 um 04:30 schrieb Agelos Pikoulas: > On my previous email please excuse my confusing Person, the example should > clearly be like this : > > * > * > > *@NodeEntity public class C

Re: [Neo4j] Db connections as we do in mysql ,oracle etc..

2011-10-26 Thread Mattias Persson
2011/10/26 Bill Baker > This might be RTFM, but I am unclear on the APIs to perform three > semantics. > > I've been creating embedded databases with something like: > > GraphDatabaseService graphDb = new EmbeddedGraphDatabase( "var/graphDb" ); > > How do I instead access an existing database? D

Re: [Neo4j] Why doInternalRecovery is necessary?

2011-10-26 Thread Balazs E. Pataki
Thank you Mattias for this logical explanation. From now on doInternalRecovery is my friend. :-) Regards, --- balazs On 10/26/11 5:06 PM, Mattias Persson wrote: > Good question, > > so neo4j implements all the ACID principles of transactions, but that > doesn't mean that there's a guarantee that

Re: [Neo4j] Db connections as we do in mysql ,oracle etc..

2011-10-26 Thread Bill Baker
This might be RTFM, but I am unclear on the APIs to perform three semantics. I've been creating embedded databases with something like: GraphDatabaseService graphDb = new EmbeddedGraphDatabase( "var/graphDb" ); How do I instead access an existing database? Doing the above gives me an error if

Re: [Neo4j] Db connections as we do in mysql ,oracle etc..

2011-10-26 Thread Mattias Persson
Have you tried the data visualizer in webadmin (http://localhost:7474)? There you can browse the graph visually. 2011/10/26 noppanit > I think you cannot have multiple connections to neo right now, but you can > use read-only mode in neoeclipse to see the graph while you're using write > mode in

Re: [Neo4j] Db connections as we do in mysql ,oracle etc..

2011-10-26 Thread Jim Webber
Hi Emil, When you're using Neo4j in embedded mode, only the hosting process can directly access the data store. If you're using it in server mode, then any number of HTTP clients can concurrently access the database through the Web API. However, Neo4j is totally thread safe so you can have many

Re: [Neo4j] Exception when converting older graph

2011-10-26 Thread Mattias Persson
Hi, did you open it after a clean shutdown of the 1.4.M05 store? Because it will auto upgrade the store to a 1.5 format, but there's a problem of detecting store version in 1.5.M02 if you try to open it after a non-clean shutdown. 2011/10/26 Paul A. Jackson > I have a graph that was created wit

Re: [Neo4j] Why doInternalRecovery is necessary?

2011-10-26 Thread Mattias Persson
Good question, so neo4j implements all the ACID principles of transactions, but that doesn't mean that there's a guarantee that when you've committed a transaction the data is in the store files on disk. In fact that wouldn't be performant at all. The data is written to the store files with buffer

Re: [Neo4j] Default Analyzer in Index Framework

2011-10-26 Thread Mattias Persson
2011/10/26 Rick Bullotta > Hi, Mattias. > > That's exactly what we did. One interesting note: the query and get methods > seemed to work without lower casing the search term (maybe the analyzer is > used to parse the query?), but for native lucene queries we needed to > lowercase them. All good

[Neo4j] Exception when converting older graph

2011-10-26 Thread Paul A. Jackson
I have a graph that was created with 1.4.M05 that I am trying to open with 1.5.M02. Is this supported? I get this exception: Caused by: org.neo4j.graphdb.TransactionFailureException: Could not create data source [nioneodb], see nested exception for cause of error at org.neo4j.ke

Re: [Neo4j] Why doInternalRecovery is necessary?

2011-10-26 Thread Rick Bullotta
That's a great question, Balazs. I never understood why it replayed all of the logical logs rather than just the most recent. Aren't all but the active log already committed? -Original Message- From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On Behalf Of Bala

[Neo4j] Why doInternalRecovery is necessary?

2011-10-26 Thread Balazs E. Pataki
Hi, after crashing my application the next time I start it up I get the usual Oct 26, 2011 3:28:42 PM org.neo4j.kernel.impl.transaction.xaframework.XaLogicalLog doInternalRecovery INFO: Non clean shutdown detected on log [/db/nioneo_logical.log.1]. Recovery started ... INFO: Non clean shutdown

Re: [Neo4j] Db connections as we do in mysql ,oracle etc..

2011-10-26 Thread noppanit
I think you cannot have multiple connections to neo right now, but you can use read-only mode in neoeclipse to see the graph while you're using write mode in your application in the same time. Sent from my BlackBerry® wireless device -Original Message- From: "Emil Dombagolla [via Neo4j C

[Neo4j] Db connections as we do in mysql ,oracle etc..

2011-10-26 Thread Emil Dombagolla
Hi All. We are doing application with Neo4j for the fist time. Can we connect to the database server with having multiple connections same time. Do we have connection strings as we have in mysql,orcale etc.. I want to see the graph changes using neoclipse while we do our developements. Is this

Re: [Neo4j] Spring Data Graph / Neo4j – Problems with OO Inheritance & Polymorphism relation semantics

2011-10-26 Thread Agelos Pikoulas
On my previous email please excuse my confusing Person, the example should clearly be like this : * * *@NodeEntity public class Content {}* * * *@NodeEntity public class ExtContent extends Content {}* *@NodeEntity public class Person { @RelatedToVia(elementClass = Person.class, type = "LI

Re: [Neo4j] Cypher Aggregation functions - specifically SUM()

2011-10-26 Thread Peter Neubauer
Hi there, you could do this with either the Travesal framework in Java (http://docs.neo4j.org/chunked/snapshot/examples-uniqueness-of-paths-in-traversals.html for an example) or, probably in Groovy/Gremlin if you want to script, but I am a bit out of my league for an example ... Cheers, /peter ne