Hi Peter,
seems like you confused CMDB (Configuration Management Database) with
CMS (Content Management System)? While Neo4j is perfect for building
both, the use cases don't have very much in common ...
Greetings
Axel
Am 07.12.2011 09:26, schrieb Peter Neubauer:
Hi folks,
thought this
We remove nodes from the index with index.remove(node). The index is
initialized at startup with
IndexNode index = graphDb.index().forNodes(fulltextAllNodes,
MapUtil.stringMap(provider, lucene, type, fulltext));
Removing the node from the index before executing node.delete() avoids
the
Does this problem occur with automatic node indexing?
We're not using auto indexing, so I can't say.
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It cannot be only that. By the looks of it some part of your code uses
Node#hasProperty after Node#delete, which is illegal and that's what's
causing it.
Yes, that's right. The exception is expected behaviour. But why the
node's still in the index?
I think it's just a timing problem in our
Using neo4j 1.4.1 we had some exceptions like
15.11.2011 18:16:11 org.structr.core.entity.AbstractNode setProperty
WARNUNG: Exception in setProperty
org.neo4j.kernel.impl.nioneo.store.InvalidRecordException: Record[22]
not in use
at
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Hi,
is there any news on implementing native UUID in Neo4j?
Back in May 2010, there was a discussion about UUID in Neo:
http://lists.neo4j.org/pipermail/user/2010-May/003625.html
Greetings
Axel
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People already familiar with graphs seem to love the original Cypher
syntax while newbies may find it helpful to start with something they
already know.
What about letting both coexist peacefully?
Axel
Am 05.11.2011 14:29, schrieb Andres Taylor:
On Nov 5, 2011 1:51 PM, Jim
Hi,
like this, people familiar with SQL (which are many) don't have to
think, they just read and understand.
+1
Axel
Am 04.11.2011 18:58, schrieb Peter Neubauer:
Hi all,
moving this discussion to the community, it is very important getting
your feedback! Including Andres' original post on
My 2 cents:
The Neo4j API is clean, open, and sort-of low level by intention. It is
neither ugly, smelly, nor it does it violate anything.
Neo4j in general is very stable. But, of course, if you try the latest
snapshot, it may have bugs (as any software has).
Since May 2010, we're developing
Don't know since when, but http://download.osgeo.org/ is up again.
Could you please monitor this? If it persists, we can change the repo URL.
Cheers,
/peter neubauer
On Fri, Sep 9, 2011 at 2:52 PM, Axel Morgnera...@morgner.de wrote:
Hi,
today maven could not download dependencies for
Hi,
today maven could not download dependencies for neo4j-spatial. It seemed that
the repo
repository
idosgeo/id
nameOpen Source Geospatial Foundation Repository/name
urlhttp://download.osgeo.org/webdav/geotools//url
/repository
Hi Peter!
That's great news! I'm absolutely convinced that an open community that is so
well supported like Neo4j's will make the difference in many projects.
Greetings
Axel
Am 06.09.2011 um 16:32 schrieb Peter Neubauer:
Hi all,
Over the last year, the graph community has seen a fantastic
Hi Jim,
thanks for clarification. Yesterday, we set some instances back to M04,
no issue occured so far.
Axel
On 03.07.2011 14:36, Jim Webber wrote:
Hi Axel,
- Is 1.4 M04 safe?
Yes. This bug was introduced in M05.
- How can we detect whether corruption occured, and is there a way
Hi Jim,
thanks for reporting anyway. We run some structr instances on the latest
milestone, so I'd be interesed in some more details:
- Is 1.4 M04 safe?
- How can we detect whether corruption occured, and is there a way
recover from that?
- Is this bug contained in the current SNAPSHOT?
www.sidk.info
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In structr [1], we use kryonet [2] to push/pull subtrees including
binary files between instances (source code: [3]).
We also thought about an Android client which holds a subset of the
structr graph. Neo4j running on Android (and iOS as well) would be great.
[1] http://structr.org/
[2]
Hi Neo4j-Team!
Just wanted to say 'thank you'. With neo4j 1.4, we can solve a problem
we had before with group permissions in structr [1].
Without self relationships, users were unable to see their own group
they're in, because the permission isReadable was determined by a
SECURITY
Dear Neo4j creators, users and supporters,
tonight, we released a first public version (v0.3) of structr.
Basically, structr is a CMS based on Neo4j. Source code is available at
github [1].
With structr, you can build web sites and interactive, database-backed
web applications. The principle
+1 for 1 too
Am 16.05.2011 14:11, schrieb Tobias Ivarsson:
What do you think?
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Maybe slow, but easy and and working:
for (Node n : graphDb.getAllNodes()) {
if (!n.hasRelationship()) {
n.delete();
}
}
On 12.04.2011 20:19, Rick Bullotta wrote:
Is there any recommended technique for scanning a Neo
Using 1.3-M03 here. I also try to reproduce it with an isolated test.
Will keep you informed about the result.
Axel
On 01.04.2011 11:01, Mattias Persson wrote:
2011/4/1 Michael Hungermichael.hun...@neotechnology.com
What about the line in the if that doesn't execute the block, if
On 31.03.2011 09:29, Mattias Persson wrote:
There are two things here:
The error you're getting is because you probably forget to close some
IndexHits somewhere, IndexHits that you haven't iterated all the way
through... could you check your code for such mistakes?
Hmm ... I checked the code.
Hi,
during stress tests, I got a Too many open files message (see detailed
stack trace below). Server is a Debian Linux 2.6.26 x86_64 w/ 24 GB RAM,
Core i7 which handles the load with ease.
cat /proc/sys/fs/file-max
2399285
The parameter fs.file-max was already set very high, but I'll
Seems that another thread is still running when I close the database, so
nothing wrong with Neo4j, but with my code. :-(
Can I somehow force all running transactions (even when started from
other threads) to finish?
Am 29.03.2011 10:23, schrieb Mattias Persson:
I can't reproduce this. I
Good evening,
lately I'm experiencing the following log message when closing the
database, even if no write transaction was there between startup and
shutdown. In my test, I even wait 5s before closing the database and
another 5s before stopping the thread - same result.
INFO: Close invoked
Hi,
is it true that the current neo4j-spatial jarfiles are not available on
http://m2.neo4j.org/org/neo4j/neo4j-spatial/ anymore?
I cannot find it at http://m2.neo4j.org/snapshots/org/neo4j/ either.
On https://repo.neo4j.org/ I only find 0.1-SNAPSHOT.
Yes, thanks a lot!!
Am 24.03.2011 10:42, schrieb Anders Nawroth:
Hi!
The neo4j-spatial snapshots are now back.
/anders
On 03/24/2011 10:18 AM, Axel Morgner wrote:
Hi,
is it true that the current neo4j-spatial jarfiles are not available on
http://m2.neo4j.org/org/neo4j/neo4j-spatial
Kyle,
CMIS support is on our roadmap for the 1.0 release of structr [1].
At the moment, we're planning to release a first public beta (v0.3) of
structr (CMS/ECM system based on Neo4j) for end of May 2011.
Greetings
Axel
[1] http://structr.org
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That would be great!
Or Frankfurt? It's a little more central (but Berlin is ok for me, too)
BTW: We should change the subject (it sounds so negative) ;-)
Since I created the original post, I'll start a new thread.
On 14.03.2011 13:02, Peter Neubauer wrote:
Berlin sounds great.
Last year a
Just thought that beer and talk are importend enough to have its own
wiki page:
http://wiki.neo4j.org/content/User_Meetings
Maybe we can put additional information like dates etc. onto this page?
On 14.03.2011 14:17, Andreas Kollegger wrote:
Love the idea of an app. Perhaps a topic for the
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://meridio.blogspot.com
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Hi Tobias,
I sent you more detailed information off the list.
Greetings
Axel
On 11.03.2011 10:49, Tobias Ivarsson wrote:
Please tell me that you have the database file in the state they were in
when this happened. That you have not tried to repair the database in any
way.
If you do, could
Hi,
I'm getting an InvalidRecordException
org.neo4j.kernel.impl.nioneo.store.InvalidRecordException: Node[5] is
neither firstNode[37781] nor secondNode[37782] for Relationship[188125]
at
org.neo4j.kernel.impl.nioneo.xa.ReadTransaction.getMoreRelationships(ReadTransaction.java:131)
at
Upgraded to 1.3.M03, issue is gone.
Thanks a lot!
Axel
Am 09.03.2011 20:24, schrieb Mattias Persson:
Den onsdagen den 9:e mars 2011 skrev David
Montagdavid.mon...@neotechnology.com:
Alex,
That is caused by a bug. The bug has been fixed after 1.2. If you upgrade to
the latest milestone,
Hi Balazs,
you have to manually copy all nodes and relationships from one to the
other database. I have written a tool for that and posted some code here
[1].
But take care, in the posted version in [1], relationship properties
were not copied. To fix that, you have to replace
+1
On 03.03.2011 12:25, Peter Neubauer wrote:
Mmh,
maybe this could be in some Utilities class? Seems a good thing to be
able to clone a graph ...
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Hi,
after transition to the new indexer framework, I tried to rebuild the
index on a small test database with 11,000 nodes.
It failed with the following exception:
java.lang.IllegalArgumentException: name and value cannot both be empty
at
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Webhttp
...@burningskysoftware.com wrote:
Same here.
-Original Message-
From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org]
On
Behalf Of Axel Morgner
Sent: Friday, February 04, 2011 12:29 PM
To: user@lists.neo4j.org
Subject: Re: [Neo4j] Help us make Neo4j better at handling YOUR
the b-tree that resolves a key that represents a path to the
document node.
Michael
Am 06.02.2011 um 22:09 schrieb Axel Morgner:
Hi Michael,
just for clarification: Do you refer to how to store the internal
structure of BSON documents, or how to store documents in a
filesystem-like tree
the b-tree that resolves a key that represents a path to the document
node.
Michael
Am 06.02.2011 um 22:09 schrieb Axel Morgner:
Hi Michael,
just for clarification: Do you refer to how to store the internal
structure of BSON documents, or how to store documents in a
filesystem-like
Hi Tobias,
just ran the utility, but got an exception:
Computing character frequencies for 205895 string records
30%
... 40%
... 50%
... 60%
... 70%
... 80%
... 90%
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told not to use Neo for
blob/large text storage. Curious what approach you're taking.
Best,
Rick
-Original Message-
From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On
Behalf Of Axel Morgner
Sent: Thursday, January 20, 2011 3:15 PM
To: user@lists.neo4j.org
Hello Abhi,
you may have a look at the SQL Importer [1].
If you need more control over the import mechanism, and you have MySQL
tables as XML (f.e. using mysqladmin export), you may use dom4j, Commons
StringUtils and Java to parse it.
Within a Neo4j transaction, read the XML document, e.g.
Yes, that's I figured out just a second ago. :-)
I'll try both options.
Thanks
On 26.11.2010 10:31, Mattias Persson wrote:
It may be that neo4j-spatial 0.3-SNAPSHOT depends on a later kernel/index
version (probably 1.2-SNAPSHOT, i.e. latest trunk). In that case there's a
conflict. Could you
Ok, got everything working again, running on 1.2-SNAPSHOT now.
Quite faster than 1.1, BTW. :-)
Just in case: Is there a neo4j-spatial version which works well with
neo4j-1.1?
Thanks
Axel
On 26.11.2010 10:40, Anders Nawroth wrote:
Hi!
2010-11-26 10:31, Mattias Persson skrev:
It may be that
Currently, I'm still busy with a customer project, but when open
sourcing the software end of the year, I'll document it.
Am 16.11.2010 00:01, schrieb Peter Neubauer:
Axel,
nice it worked out for you! Would be great if you could write up a
small blog or so on this, and give us some feedback
On 02.11.2010 14:52, Craig Taverner wrote:
Adding neo4j spatial to the picture should enable the CMS handling geo
data objects without adding to much complexity (I hope).
OK. I think I'm beginning to get an idea of what you want. You have a CMS,
and some of the data is geolocated, in the sense
Hi Andrés,
In regards to your database size problem, unfortunately, I can't offer a
clean and easy solution. The store files grow as more data is added, but
doesn't shrink when you remove data. There are technical reasons for this,
but for you, it means that you either have to live with a
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Hi Craig,
first, thanks a lot for your comprehensive and helpful answer with a
number of useful thoughts in it.
Your original description says two things of interest, there is a GeoJSON
document for all countries (as multi-polygons) and there is an existing
neo4j database of all CMS data.
, but the
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Hi Chris,
moving a neo4j db as an archived directory between different machines is
fine. Normally, there's no need to remove any files from within the neo4j
directory. Just make sure to archive the db while it's completely shut
down. And take care of the access rights the files and the containing
- Your high performance graph
database.
http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
On Fri, Oct 29, 2010 at 9:18 PM, Axel Morgner a...@morgner.de wrote:
Hi Chris,
moving a neo4j db as an archived directory between different machines
is
fine
+1 for an Ubuntu personal package archive:
https://launchpad.net/ubuntu/+ppas
Am 28.10.2010 14:49, schrieb Richard Jones:
On Ubunto I would love to see an apt-get install procedure. I am almost
ready to decide on our DB and this would makie it easy to get up and running
and trial the
Hi,
a part of my current project is about rendering an abstract world map
(countries filled with a color gradient). I'm using Polypmaps on a 10 MB
geoJSON file with high-res vector data, containing 246 features defining
all the world's countries as multi-polygons (about 1.5 million points
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();
}
Thanks in advance,
Roman
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Hi Andrés,
[...] or you have to manually copy the data to a new
database, and re-index everything.
ok, that's fine for me.
Webadmin is lying - it's telling you how many node-id's have been allocated,
not how many are in use.
Understood.
In use means nodes that are connected with the
Hi,
first of all, thank you Neo Technology for providing the great neo4j
database, and of course you guys here on the list. After having found
neo4j as the database to fit our project's requirements best, all the
communication here helped me a lot.
Now that our neo4j-based project comes
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