Hi there,
Answers inline.
On Wed, Sep 21, 2011 at 4:49 AM, iamyuanlong yuanlong1...@gmail.com wrote:
hi Peter,
This can get the result.But if I want to contain B's Friends too.Should I
use this?
http://neo4j-community-discussions.438527.n3.nabble.com/file/n3354221/follow%26friend.jpg
Unfortunately the SSD is not an option, because I would need a SSD with
around 150GB as my database is 140GB big.
Yesterday I already tried to configure Neo4j to use more memory for mapping,
but it seems that Neo4j does't allocate the whole memory I configured.
I noticed that my system just uses
Hi Linan,
I just tried it with the outgoing relationships, but unfortunately that
didn't speed things up.
The size of my db is around 140GB and so it is not possible for me to dumb
the full directory into a ramfs.
My files on the hard disk have the following size:
neostore.nodestore.db = 31MB
Alexandre,
this I think is a Lucene question, maybe something like
http://lucene.472066.n3.nabble.com/Searching-a-group-of-associated-multi-value-fileds-td2789957.html
could help?
Cheers,
/peter neubauer
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Antoine,
the design sounds good from the initial in-the-head look. The only
thing I see is the modeling of groups. I would imagine something like
http://yuml.me/diagram/scruffy/class/[user1]-circle%3E[friendsU1],[user2]-partOf%3E[friendsU1],[user1]-circle%3E[jobU1],[user2]-partOf%3E[jobU1]
where
Hi stephan,
I mis-calculated the size of relationshipstore.db. i thought it was
around 8G instead of 85G. the only option left i think is to build
index. something like this:
idx = db.index().forNode(knows);
idx.add(thisguy, knows, thatguy.getId());
idx.add(thatguy, known_by, thisguy.getId());
the
Josh,
very reasonable request. Could you please put that into an issue? I
suspect this is in line with better auto indexing support, I am not
sure how much of it there already is, so let's keep track of it in the
issue.
Thanks!
/peter neubauer
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Skype
Nuo,
right now the server is discovering its own IP upon startup. However,
it sounds reasonable to return configurable base URL. I am just
wondering if that really is enough to support a LB scenario? Do you
need more stuff there?
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype
Hi Stephan,
You could try lower the heap size to -Xmx2G and cache_type=weak with
10G memory mapped for relationships. The machine only has 16G RAM and
will not be able to process such a large dataset at in-memory speeds.
Another option is to calculate degree at insertion time and store it
as a
Done. http://github.com/neo4j/community/issues/26
Thanks!
-- Josh
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Thanks for the reply Peter. So no direct user-to-user relationship, and each
user has a group/circle called AllMyFriends. Makes sense.
Regarding the timeline index(es), should I make a huge one in Lucene with
all of users posts and properties associating them to users and circles or
is it better
If you really think your application will grow large, you might want to design
your own sharding scheme across multiple servers for the posts, which will
represent your largest # of nodes and properties.
You can look at some of the QCon presentations from the Twitter team as to how
they've
Hi all
I did...
- Split it up to Neo4j Scala, which is mainly the old available neo4j-scala
version. A little refactored and enhanced with Case Class to Node
properties marshaling and some Traits for graph service provider handling
(- https://github.com/FaKod/neo4j-scala)
- Neo4j Spatial Scala
Hi, I'm starting a little side project in a startup which will use neo4j. How
can I set the server to backup the data without stopping the neo4j server and
without going with the enterprise version? as mush as I'd like to, but really,
2000 usd/month are too much for a bootstrapping startup (I
This came up recently on the list in August
http://neo4j.org/forums/#nabble-td3274919. The last message in the thread
has contact info and sounds like there is room for hearing your specific
requirements.
Cheers,
McKinley
On Wed, Sep 21, 2011 at 8:03 AM, Rugal ru...@email.it wrote:
Hi, I'm
If on Linux, you could use DRBD, I suppose.
-Original Message-
From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On
Behalf Of McKinley
Sent: Wednesday, September 21, 2011 11:21 AM
To: Neo4j user discussions
Subject: Re: [Neo4j] How to backup with neo4j community?
For my scenario, I currently only use the LB for request authentication, so
that not everyone on the network can access the neo4j server. In my use
case, I think making the base uri configurable (including the protocol, e.g.
https://foobar.com/) is enough.
There are a couple other approaches that
Hi,
I've got a Cypher query with some 10k possible source nodes and some 10k
intended target nodes out of some 1M possible target nodes which looks
something like the following:
START source = (indexSourceNodes,*),
target = (indexTargetNodes,propertyTwo:*.txt)
MATCH
Nuo,
Thomas Baum has been working on an authentication extension for Neo4j
Server, see https://github.com/neo4j/authentication-extension. He
could help you set it up and test it - it's used in hosting scenarios
and should do what you want in terms of limiting access to certain
URIs if that is what
you can see the usage with an embedded Neo4j Server instance in the
test at
https://github.com/neo4j/authentication-extension/blob/master/src/test/java/org/neo4j/server/extension/auth/TestAuthentification.java
HTH
Cheers,
/peter neubauer
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Skype peter.neubauer
Hi all,
I've got a question about a cypher query.
$queryText = START n=(1) match a--n WHERE a.Gemeente return a;
This query returns the two locations (Gemeente) I have entered as a
property of our buildings in the database. Hundred other buildings don't
have that property yet.
So far so
Limiting access to certain URIs or IPs is great, but ideally at this moment
I also need something like a key-based authentication so I can send a
private key in the headers from my restclient and neo4j would authenticate
and only take authenticated requests. Does the authentication extension
Filip,
yes, the where clause right now is filtering on the results of the
MATCH clauses results. As such, if the property is not on the node, it
will not be found, but you can of course use it is a starting lookup
query. However, I think Andres is working towards being able to detect
that
Got it!
Thx!
Cheers,
Alexandre.
On Wed, 21 Sep 2011 13:27:07 +, Peter Neubauer wrote
Alexandre,
this I think is a Lucene question, maybe something like
http://lucene.472066.n3.nabble.com/Searching-a-group-of-associated-multi-value-
fileds-td2789957.html could help?
Cheers,
/peter
Could you execute the query in the cypher console?
Could you also try to pass in the value Antwerpen as a literal to check?
START n=(1) match a--n WHERE a.name= 'Antwerpen' RETURN a
// try to add the order by after the query suceeded, might be that you have to
use a.name? for that
ORDER by
+1
But the plural of index is indices.
On 22/09/2011 1:56 AM, Peter Neubauer peter.neuba...@neotechnology.com
wrote:
Josh,
very reasonable request. Could you please put that into an issue? I
suspect this is in line with better auto indexing support, I am not
sure how much of it there already
Hi Guys,
I think there is an error in the performance docs. I am currently tuning the
stack size as we use multiple threads, however, I see this in the docs:
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Neo4j mailing list
User@lists.neo4j.org
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Sorry, clicked wrong button:
http://wiki.neo4j.org/content/Configuration_Settings
The stack size is set by specifying the -Xss???m parameter to hotspot, where
??? is the stack size in megabytes.
As far as I am aware, according to this document:
k/m/g all work. just tried on 1.6.
On Thu, Sep 22, 2011 at 2:22 AM, Romiko Derbynew
romiko.derby...@readify.net wrote:
Sorry, clicked wrong button:
http://wiki.neo4j.org/content/Configuration_Settings
The stack size is set by specifying the -Xss???m parameter to hotspot, where
??? is the
Hi,
I am using Neo4j on a Windows Server, is there any way I can configure log
rotation via the configuration files? I would like to turn it off or try a
different log rotation size. Since I am on windows, I am not sure how I would
do it at runtime.
Thanks!
AAh, excellent, thank for that, I guess stack sizes should be in the 1024k
range though not 1024m on 64 bit machines?
-Original Message-
From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On
Behalf Of Linan Wang
Sent: Thursday, 22 September 2011 11:37 AM
To: Neo4j
OED and Merriam Webster both say it can be either:
http://www.merriam-webster.com/dictionary/index
I have no technical reasoning one way or the other which it should be
called. (A quick search shows that indices is slightly more favored in
maths and science, while indexes is the more common
Hi all,
I have added an in graph representation of an unrolled linked list to the
graph collections code, currently just in my githug repo:
https://github.com/brycenz/graph-collections
See this in particular:
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