Hi there,
what version are you running, any chance you could collect the
messages.log from the instances and send them over?
Cheers,
/peter neubauer
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Here is the full stack -
Dec 5, 2011 3:15:11 AM
org.neo4j.kernel.impl.transaction.xaframework.XaLogicalLog
doInternalRecovery
INFO: Non clean shutdown detected on log
[/home/ajinkya/Projects/CI_Neo4j/ci/target/neo4j-db/nioneo_logical.log.1].
Recovery started ...
If anyone needs example code for getting JCC hooked up instead of relying
on JPipe, my shot at creating bindings got that working:
https://github.com/OneSaidWho/neo4py
In addition to the installation process seeming pretty straight forward
when using JCC, the speed improvement might be beneficial
Bring up the Putty GUI.
Load your saved session
On the side menu:
Go to Connection SSH Tunnels
Source Port: 7474
Destination: localhost:7474
Click Add
Click back on Session on the side menu
Click on your saved session.
Click Save.
Now try it again, and it will setup the tunnel for you when you
Hi,
this sounds like a version error:
Caused by: java.lang.NoSuchMethodError:
Nice.
Thanks for sharing Max!
Cheers,
/peter neubauer
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Skype peter.neubauer
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brew install neo4j neo4j start
heroku addons:add neo4j
On Mon,
Anyone try out the PageRank function on Gremlin?
https://github.com/tinkerpop/gremlin/wiki/Working-with-JUNG-Algorithms/0506c193f30abe0bc18d40d7a08c9257d9311b13
How does it perform with just under 100k nodes on a sparse graph (3000
relationship max, average of 100)?
I've been doing my pagerank
Currently there's no way to get a fast count of number of relationships,
but this has been worked on so that you can get number of relationships per
type/direction without actually looping through them. When it will go into
the product I don't know yet. The best you can do in the meantime is to
I'd not expect that to end up in messages.log. messages.log is the internal
logger for forensics purposes. How did you configure the logger? Is it
log4j or jul?
2011/12/3 Peter Neubauer peter.neuba...@neotechnology.com
Mmh,
good question. I think they should get out into messages.log, maybe
Link for the messages.log file : https://gist.github.com/1433340
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Hi Peter,
We have lucene-core-3.1.0.jar and neo4j-kernel-1.6-SNAPSHOT.jar in our
classpath. The scenario is to use EmbeddedGraphDatabase for creating the
GraphDatabaseService. And use LuceneIndexService
(neo4j-index-1.2-1.2.M06.jar) to index the data.
We tried executing with kernel versions
Hi there,
I'm looking to get my entire graph into memory.
I've configured the file buffer cache, but nodes/rels don't get added into
the cache until I first query them. Is it just a case of traversing the
entire graph to warm-up the cache on application startup? Or is there
another way to tell
Warming up the graph is best done by warming up the graph, so to speak.
Every warmup use case is different, and for warming up the entire graph
you'll have to loop through all nodes and get their relationships and if
you'd like to have properties in there too then load them also. The most
basic
Hi,
Two questions, two requests:
1) Does this happen only on one machine or any member of the cluster?
Is it reproducible at will?
1) Could you please provide the messages.log for the other two machines as well?
2) Can you please tell me the result of this scenario:
- Create the cluster from
Thanks Mattias,
I'll try that out.
Playing about, I've noticed that the file buffer cache seems to survive
restarts. Is this correct? Is it guaranteed that the whole file buffer
cache will survive?
On 5 December 2011 14:09, Mattias Persson matt...@neotechnology.com wrote:
Warming up the graph
Hi,
I had to use Aggregate here, instead of Store(), else the Except does not
work.
The except() does work, but you have you understand how it works with respects
to the semantics of aggregate() and store().
store = lazily store objects in the pipeline to some collection x
Hi,
Anyone try out the PageRank function on Gremlin?
https://github.com/tinkerpop/gremlin/wiki/Working-with-JUNG-Algorithms/0506c193f30abe0bc18d40d7a08c9257d9311b13
How does it perform with just under 100k nodes on a sparse graph (3000
relationship max, average of 100)?
I've been doing
Has anyone looked at the new? apache commons graph library?
Michael
Am 05.12.2011 um 16:38 schrieb Marko Rodriguez:
Hi,
Anyone try out the PageRank function on Gremlin?
https://github.com/tinkerpop/gremlin/wiki/Working-with-JUNG-Algorithms/0506c193f30abe0bc18d40d7a08c9257d9311b13
How
You're referring to the file system caches managed by the operating system,
right? That neo4j has no control over and is up to the specific OS you run
it on.
2011/12/5 Ian Forsey for...@gmail.com
Thanks Mattias,
I'll try that out.
Playing about, I've noticed that the file buffer cache seems
Hi Romiko,
I am interested to learn more about the inner workings of Gremlin?
I would too! :P
This might help you out:
http://markorodriguez.com/2011/08/03/on-the-nature-of-pipes/
Marko.
http://markorodriguez.com
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Hey,
Matt: This isn't related to this thread, but I noticed you are from Scholar.ly.
I thought you might like this:
http://arxiv.org/abs/0905.1594
Go Canucks!,
Marko.
http://markorodriguez.com
On Dec 4, 2011, at 12:58 AM, Matt Luongo wrote:
Well, I had already started writing this
Yes, the file system cache that lives outside the JVM heap.
Thanks for your reply - it's really helped me out. I understand now that
the OS is caching the file system cache between restarts of the Neo4J JVM.
For my use case I think I will have to have think about the best strategy
for warming
Marko,
Thanks for the link, it's obviously very relevant to what we're doing!
We've talked a ton about trying to solve some of the problems it looks like
k-reef was designed to, but weren't quite ambitious enough :)
We have an alpha release coming up- would you be interested in seeing what
we
Hi Peter,
That sounds like a nice idea for sure :)
-Original Message-
From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On
Behalf Of Peter Neubauer
Sent: Monday, 5 December 2011 5:31 PM
To: Neo4j user discussions
Subject: Re: [Neo4j] Aggregates inside copySplit()
Hi Marko,
Indeed, I think I get it now, in what scenarios would you use a non greedy
collection and how would you know when that collection has be filled, I guess
you would not want to query a collection that is still busy filling up in the
background?
-Original Message-
From:
Hi Everyone,
Here is a comprehensive list of events we have coming up in November. Check
it out below.
Remember, check back to http://plancast.com/neo4j for updates throughout
the month. If you have any questions regarding participation, feel free to
email me at alli...@neotechnology.com.
We have an alpha release coming up- would you be interested in seeing what
we have?
Oh would I! Golly gee.
:P,
Marko.
http://markorodriguez.com
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https://lists.neo4j.org/mailman/listinfo/user
Hi,
How would I rewrite this Cypher query with JavaScript (so it can be sent to the
traversal API)?
START s=node(123) MATCH s-[:users]-[:current]-u WHERE u.email = 'abc' RETURN
u
Cheers,
Dmytrii.
http://www.ApproachE.com
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Marko,
I am thinking of using this statement.
g.V.ifThenElse{it.out('hasCentre').filter{it == aCentre}.hasNext()}{}{println
${it} has center unknown}
to get nodes that DO NOT have a relationship, is this the best way to do it? I
guess so, if this is the case, I am now adding support to the
Haha, looking forward to hearing your thoughts.
--
Matt Luongo
Co-Founder, Scholr.ly
On Mon, Dec 5, 2011 at 7:10 PM, Marko Rodriguez okramma...@gmail.comwrote:
We have an alpha release coming up- would you be interested in seeing
what
we have?
Oh would I! Golly gee.
:P,
Marko.
Dear List,
I'm using neo4j 1.5GA and using embeddedGraphDatabase to access the graph.
Now the graph size is around 4G.
Now I would like to try HA mode and have several questions.
1) Can I access the graph in some kind of remote mode? So that I can use
many tomcat servers to access the graph
Cool.
lemme know if you need any help with that maybe outline planning or so.
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
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brew install neo4j
Hi all,
we were thinking of migrating the list to u...@neo4j.org, but there
seems to be the problem that the main google index is not indexing
groups hosted on GAFYD (neo4j.org). Does anyone know if that is really
the case or if there is workarounds? Would suck not to have a
searchable archive.
START s=node(123) MATCH s-[:users]-[:current]-u WHERE u.email = 'abc'
RETURN u
something like:
nodes = @neo.traverse(node1,
nodes,
{order = breadth first,
Hi there,
Any reason you need to do that explicitly?
/peter
Sent from my phone, please excuse typos and autocorrection.
On Dec 6, 2011 2:51 AM, Dmytrii Nagirniak dna...@gmail.com wrote:
Hi,
How would I rewrite this Cypher query with JavaScript (so it can be sent
to the traversal API)?
Hi Peter, I am still stuck with this bug ... not able to see what might be
going wrong. Do you see anything obvious that we might be doing wrong here ?
(Btw Prajakta and me work together on this.) Thanks.
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You can execute cypher remotely on the server, which is preferred the way.
http://docs.neo4j.org/chunked/milestone/cypher-plugin.html
As of 1.6.M02 there will also be an endpoint in the core-rest-api:
Michael
Am 06.12.2011 um 02:51 schrieb Dmytrii Nagirniak:
Hi,
How would I rewrite this
Thanks a lot. I see now.
So the relationships key/value is the closest thing that represents MATCH.
What does it mean to have an array of those?
Is it going to traverse any of the relations in the array or it is ordered and
will end when it has exceeded itself.
I suppose it's just the set of
On 06/12/2011, at 5:21 PM, Peter Neubauer wrote:
Any reason you need to do that explicitly?
I am working on a REST library and just want to know which one suits better.
The Cypher definitely looks easier. But I want the library to choose different
api depending on the clients use (sounds
dnagir wrote
I suppose it's just the set of relationships allowed to iterate over
judging from the return_filter.
Yup. I don't know your model, so the query may be simpler depending on how
things are connected.
If you don't have users who link to other users, then you can skip the check
I already have neo4j-lucene-index-1.6-SNAPSHOT.jar in my classpath. I want
to use LuceneIndexService which is why I am including
neo4j-index-1.2-1.2.M06.jar Is there any better way to do this ?
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