On 6/28/07, Tobias Ivarsson [EMAIL PROTECTED] wrote:
From the neo4j.org website:
...
Neo provides:
...
- an event framework with proactive and reactive events on
modification of the node space.
Actually, we haven't exposed the event framework yet in the new API.
But we'll try to get
On 10/16/07, Klas Ehnrot [EMAIL PROTECTED] wrote:
On 10/15/07, Björn Granvik [EMAIL PROTECTED] wrote:
** Repeated iterables
*In the chapter Coding Relationships there is a
private static class OrderIterable extends AbstractCollectionIOrder
Should probably be parameterized using
Two nodes will be added, this might be counter intuitive if you don't
know that we do not support real nested transactions (this needs to be
made more clear in the documentation). The semantics of our
transactions is as follows:
o a nested transaction will not start a new transaction,
mentioned on neo4j.org.
/peter
On Jan 25, 2008 1:50 PM, Johan Svensson [EMAIL PROTECTED] wrote:
Multiple instances are supported. The exception thrown is just a check
from back when we had a start method. I'll change it to an assert or
ISE.
Peter what version of Neo are you running
The stacktrace says to me that it is a threading problem. Two threads
enter relationship delete at the same time, one of them wins the lock
on the relationships deleting it. Upon commit the lock is released and
the other thread tries to load the relationship from store since it
can't find it
The dist site only contains releases. You need to deploy a shell fix
for neo-1.0-b6? If so mail me the jar and I'll put it there.
-Johan
On Mon, May 5, 2008 at 1:54 PM, Mattias Persson
[EMAIL PROTECTED] wrote:
Hi I need to deploy the latest neo/shell version to dist.neo4j.org
since those
On Tue, May 6, 2008 at 10:02 AM, Philip Jägenstedt [EMAIL PROTECTED] wrote:
Hi again,
I was going to hear with you all about best practices for dealing with
what can be described as fragile typing: Given the relationship
REMIXED going out from an artist, it's possible that the target node
On Sat, May 10, 2008 at 9:04 PM, Philip Jägenstedt [EMAIL PROTECTED] wrote:
Perhaps my question could also be phrased as:
What happens if tx.finish() is never called? I don't know what tomcat
does when it times out, but I expect it might kill the running servlet
quite brutally.
If
Hi,
Please read and follow instructions here:
http://wiki.neo4j.org/content/About_Contributor_License_Agreement
We will then create accounts for you. Also check:
http://wiki.neo4j.org/content/Code_Contributor's_Guide
-Johan
On Tue, May 13, 2008 at 4:17 PM, Andreas Ronge [EMAIL PROTECTED]
Looks like the transaction log has been closed via call to
NeoService.shutdown().
-Johan
On Sun, Jun 1, 2008 at 1:09 PM, Peter Neubauer [EMAIL PROTECTED] wrote:
Thanks!
Upgraded Neo4j to 1.0-RC1-SNAPSHOT, now the exception is:
ls 0
got id: 0
java.nio.channels.ClosedChannelException
Hi,
I couldn't figure out how to upload non-image files in the media wiki
(anyone knows?) so I uploaded it to
http://dist.neo4j.org/neo-coding-conventions.xml
-Johan
On Wed, Jun 4, 2008 at 5:29 PM, Anders Nawroth [EMAIL PROTECTED] wrote:
hi!
This page:
Hi,
In beta 6 it blocks but in the trunk we have fixed this so a read
never blocks waiting for some other transaction. Instead the committed
or locally modified value is read and any other concurrent modifying
transaction will have its own copy.
Also in the next few days we will merge in the
Both nodes and relationships should implement the PropertyContainer
interface so no need to duplicate code. PropertyContainer interface
has been added to trunk (see org.neo4j.api.core package) and will be
included in the next release.
-Johan
On Sat, Jun 21, 2008 at 10:42 AM, Anders Nawroth
Did you shutdown Neo so logical log got removed? Check the Neo store
directory for a nioneo_logical.log*. If that file exist you didn't
perform a proper shutdown so a lot of information about how to recover
is also stored not reflecting the real overhead.
Default configuration of Neo is not
Hi Andreas,
As you say IndexService is very simple and only supports exact lookup
at the moment. Use the index service to position yourself somewhere in
the graph (or if you can get away with using Neo's native ids since
getNodeById is lightning fast) . Once you have a position you start
Hi Anders,
On Tue, Jul 29, 2008 at 5:06 PM, Anders Nawroth
[EMAIL PROTECTED] wrote:
hi Johan!
Johan Svensson wrote:
As you say IndexService is very simple and only supports exact lookup
at the moment. Use the index service to position yourself somewhere in
the graph (or if you can get away
None. If you can get the code formatter not to touch existing blank
lines please do so.
-Johan
On Mon, Aug 4, 2008 at 12:19 PM, Anders Nawroth
[EMAIL PROTECTED] wrote:
Hi!
Just out of curiosity, what's rationale for not allowing any blank lines
inside of methods in the code formatter?
On Fri, Aug 8, 2008 at 12:34 PM, Anders Nawroth
[EMAIL PROTECTED] wrote:
hi!
Johan Svensson wrote:
anders.nawroth wrote:
As I'm currently looking into the IMDB Workshop stuff, it would be helpful
to hear your idea on a graph layout to make searches for actor names and
movie titles
Hi Nils,
- support an extendible data model (plugins can add fields /
relationships to exisiting objects). From what I've read this is supported.
Everything is dynamic, you can create new
nodes/relationships/relationship types and add properties at will. A
node can have any combination of
[EMAIL PROTECTED] wrote:
Hi!
Johan Svensson skrev:
One way would be to do a traversal from the word-node with the least
number for relationships.
OK, I implemented this. But I *do* have to iterate over the relationships to
get the count?
At the moment I only want the search to return one
On Thu, Aug 14, 2008 at 5:02 PM, Jonas Bergvall [EMAIL PROTECTED] wrote:
Do you have an estimate when that would be?
Sometime next week.
Currently I'm looking into using Neo's TM and injecting XA resources into it
instead. Is there any example of how to do that?
You need to setup a branch
Hi,
On Wed, Aug 27, 2008 at 5:57 AM, Jonny Wray [EMAIL PROTECTED] wrote:
ii) I have the need for querying node properties. I've been using sparql but
it isn't scaling and I'm going to have to go to an indexing solution. I've
seen a brief mention of an index service with neo but no more details
On Wed, Aug 27, 2008 at 8:17 PM, Jonny Wray [EMAIL PROTECTED] wrote:
Thanks Johan,
I have a question, or maybe request, along the lines of the second
thread link you sent me.
I have a use case much like a google search - the user specifies a
search string and the application brings back all
Hi Jürgen,
I will try to answer some of your questions.
On Thu, Dec 11, 2008 at 10:17 PM, Jürgen Umbrich
juergen.umbr...@deri.org wrote:
first off all, I am very fascinated about neo and the neo4j library.
I work as part of my PhD in the domain of web crawling and thus, I
thought about using
On Fri, Dec 12, 2008 at 6:28 PM, Jürgen Umbrich
juergen.umbr...@deri.org wrote:
Hi
Single value index is currently pretty slow. If you just create 1
node, 1 relationship, 1 property for each link and no index you
should get about 10-30 inserts/ms depending on hardware (would
translate to
Hi, Mwanji
Your observations about transactions are correct. A while ago I
removed the transaction check for read operations (as a performance
optimization). Reading may however throw an exception depending on
what state the object being read is in.
Currently all node, relationship and property
use.
On Mon, Dec 29, 2008 at 2:51 PM, Mwanji Ezana mwa...@gmail.com wrote:
Hi Johan,
Thanks for the clarification.
On Mon, Dec 29, 2008 at 11:34 AM, Johan Svensson
jo...@neotechnology.comwrote:
Reading may however throw an exception depending on
what state the object being read
Hi David,
Currently there is no in-memory implementation. It would be fairly
easy to implement the
org.neo4j.impl.persistence.ResourceConnection/PersistenceSource
interfaces but you would still have the global transaction manager
that would keep a transaction log on disk.
The easiest way would
Hello Jeff,
Thanks for your interest in Neo4j, your project sounds very interesting.
On Thu, Feb 5, 2009 at 5:50 PM, Jeff Rose ros...@gmail.com wrote:
Is there a way to get an iterator over all nodes? Also for all
relations? It seems that disconnected nodes can be easily lost right
now,
Hello,
Emil is right and to further clarify:
Transactions are by default tied to the thread that calls
NeoService.beginTx(). They are also by default marked as rollback so
the success() call will cause finish() to commit instead of rollback.
See
On Thu, Feb 19, 2009 at 12:49 AM, Emil Eifrem e...@neotechnology.com wrote:
On Thu, Feb 19, 2009 at 00:39, Lyudmila L. Balakireva lu...@lanl.gov wrote:
But I worry how it going to recover with billions nodes in it . It should
be able to recover with the same memory used to write the indexes?
Hi Antonello,
Have a look at the neo-android component, dependency on
javax.transaction has been dropped there
(https://svn.neo4j.org/components/neo-android/trunk/) by just writing
empty interfaces for all the javax.transaction stuff needed.
javax.transaction / JTA and X/Open are just interfaces
Yes,
I spent some time yesterday looking up GAE and also concluded we have
to use the datastore:
http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/datastore/package-summary.html
Thought some about different layouts for storing nodes,relationships
and properties
the same functionality.
Once this is solved, I see no further [major] obstacles to the port:
avoiding the integration with the System.Transactions mechanism, the
base of neo4j port would work in its core functionalities.
Cheers.
Antonello
On Sun, May 3, 2009 at 4:51 PM, Johan Svensson jo
Hi Matthias,
Great if you want to contribute!
Currently there exist no good external documentation on Neo4j
internals. This has been requested before and I hope we can put
together a document of that type soon (but very low on bandwidth right
now).
Your best shot right now is to search the
Yes, I think you got it almost completely correct.
As you say node records (and all other records) are fixed length and
they have a pointer to the first property and first relationship. We
don't store property or relationship count, they are just
lists/chains.
Regarding the PropertyIndexStore it
Hi Andreas,
I was able to reproduce this. If I start from a clean db and only
execute those 2 tests over and over again the 4th run will always fail
on the multi rollback test. I created a ticket for it
https://trac.neo4j.org/ticket/168 and will look into it as soon as
possible.
Regards,
-Johan
and maybe future Neoclipse search
features, is there any reason to not consider Neo external search
functionality?
I assume all Neo IndexService implementations are thread-safe ;)
-Andreas
Johan Svensson wrote:
Hi Andreas,
I was able to reproduce this. If I start from a clean db and only
On Sat, May 16, 2009 at 10:25 PM, Andreas Guenther
aguent...@flying-orange.com wrote:
I have been poking around with online backup for a couple of days now
and are happy with the results in general, especially the runtime backup
capability. Most of the issues I came across I was able to work
Andreas,
I had a look at this and realized problem is caused by the static
nature of SpringTransactionManager and UserTransactionImpl. A fix for
this has been on my todo for some time but to make it right we need to
expose some new stuff in NeoService (mainly tied to configuration API
that has
Andreas,
I applied most of it, both SpringTransactionManager and
UserTransactionImpl now have the get/set method for transaction
manager and the default constructor.
I did not add the new constructor in EmbeddedNeo because it didn't
feel right to have a constructor taking
Hi Rob,
I've seen this problem once before but could not reproduce the
behavior once I tried. Could you check if tx.success() is called
before tx.finish()?
Also, could you check in the stacktrace for the source of the nested
IllegalStateException.
-Johan
On Sun, May 31, 2009 at 12:12 AM, Rob
Peter,
For batch insert with Lucene index have a look at this wiki page:
http://wiki.neo4j.org/content/Batch_Insert
-Johan
On Sun, May 31, 2009 at 11:16 AM, Peter Neubauer
peter.neuba...@jayway.se wrote:
Thanks Johan,
this works great!
However, is there any utility to create the Lucene
Hi Niel,
What version of Neo4j are you running (b8,b9-SNAPSHOT) and on what
OS/file system?
-Johan
On Thu, Jun 4, 2009 at 4:45 PM, Neil Ellis neil.el...@mangala.co.uk wrote:
I took a little more of a look in the logs and found:
java.lang.NullPointerException
at
like a nested transaction quirk ... and would only occur after a large
number of successful writes (gigs).
Thx
Neil
On 4 Jun 2009, at 18:18, Johan Svensson wrote:
Hi Niel,
What version of Neo4j are you running (b8,b9-SNAPSHOT) and on what
OS/file system?
-Johan
On Thu, Jun 4, 2009
Yes,
Currently the reference node always has node id 0 but this may change
in the future. We currently have some discussions about making the
reference node static so you can't delete it (will then always be
there with id 0). Another solution that has been discussed is to have
a setReferenceNode
On Mon, Jun 8, 2009 at 1:42 PM, Neil Ellis neil.el...@mangala.co.uk wrote:
On 8 Jun 2009, at 12:21, Johan Svensson wrote:
On Mon, Jun 8, 2009 at 12:04 PM, Neil Ellis
neil.el...@mangala.co.uk wrote:
So after a weekend away from the problem it occured to me that I had
neglected to nohup
Hi Macarse,
I had a look at this and here are some comments:
Running your code with default parameters on a 1.6 JVM about 50% of
the time will be spent in garbage collection. Giving the JVM -Xms128M
-Xmx128M will cut the variation of the query times from 2500-3000 ms
down to 1300-1600 ms
On Mon, Jun 22, 2009 at 4:37 PM, Macarsemaca...@gmail.com wrote:
On Mon, Jun 22, 2009 at 10:21 AM, Johan Svenssonjo...@neotechnology.com
wrote:
...
You also run everything in the same transaction. I tried getting some
information on transaction and what isolation level the insert/query
you
On Thu, Jun 25, 2009 at 2:51 PM, Mattias
Perssonmatt...@neotechnology.com wrote:
2009/6/25 Symeon (Akis) Papadopoulos papa...@iti.gr:
[My apologies for insisting on this issue.]
There's (at least) two solutions to this problem. One is that, as you
suggest, to have the iterator wrap its methods
Antonello,
Pass it in as a key/value pair in the constructor that takes a
configuration map:
MapString,String params = new HashMapString,String();
params.put( use_memory_mapped_buffers, false );
NeoService neo = new EmbeddedNeo( neo-db, params );
Hope that helps.
Regards,
-Johan
On
Hi Rob,
On Thu, Jul 2, 2009 at 12:43 PM, Rob Challenrjchal...@gmail.com wrote:
Having lots of fun experimenting with Neo. Nice job.
Great to hear!
Its not clear from the traverser documentation what behaviour I should
expect from a traverser if both stop evaluator and returnable evaluator
Hi Jan,
On Tue, Jul 7, 2009 at 1:43 PM, Jan Berkeljan.ber...@gmail.com wrote:
here's the log of the failed recovery (post-powercut)
It looks like the recovery was completed successfully and right after
it a normal relationship create failed. This is odd. In order to see
the real causes of the
Hello,
We have discussed this and given it some thought before. I think
having a global index on (node1,node2,relationship) will not work
well. Just managing that index will slow down relationship create and
delete a lot.
What we keep forgetting is that the graph already is the index. A well
On Tue, Jul 7, 2009 at 5:15 PM, Symeon (Akis)
Papadopoulospapa...@iti.gr wrote:
Johan Svensson wrote:
What we keep forgetting is that the graph already is the index. A well
designed graph will often check if a specific relationship exist
between two nodes just as fast as asking an already
Hi Ikechukwu,
On Fri, Jul 10, 2009 at 11:50 PM, Ikechukwu
Eshiokwuikechukwu.eshio...@primalfusion.com wrote:
Hey,
So I'm attempting to import an existing graph stored in a RDBMS into Neo4j
using the
BatchInserter.createNode(long, MapString, Object) method (since I'd like to
preserve the
Excellent work Andreas!
Would be great if someone could try this out. Else I can ask Peter
later (think he is on vacation right now) to do this.
Regards,
-Johan
On Sat, Jul 18, 2009 at 12:56 AM, Andreas
Kolleggerakolleg...@tembopublic.org wrote:
Hi all,
A quick update on the status of the
Can you reproduce this? If you could create a test that triggers this
would be great cause it looks like a bug.
Also are you running this on windows?
-Johan
On Mon, Jul 20, 2009 at 1:45 PM, Neil Ellisneil.el...@mangala.co.uk wrote:
SEVERE: Failed loading relationships for node[5906099]
...
Hi Akis,
Again you have run into a JVM bug
(http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6423256, and it
should have been marked as a bug not request for enhancment).
I would suggest you update your JDK to the latest one (update 14) and
hopefully the problem will go away. If it does not
Hi Neil,
It is possible to make Neo4j act as a read-only database resulting in
no recovery after a non clean shutdown. We are planing to have a look
at this after the b9 release. Also speeding up the recovery process is
something we have to do before going 1.0 final (should be possible to
drop
, those are the things that will cause us problems
when we get to production.
All the best
Neil
On 26 Jul 2009, at 13:07, Johan Svensson wrote:
Hi Neil,
It is possible to make Neo4j act as a read-only database resulting in
no recovery after a non clean shutdown. We are planing to have
Hi Neil,
Yes, there are a lot of error messages that needs to be improved. On
the other hand the documentation should state that calling any Neo4j
API operation after (or concurrently with) NeoService.shutdown() is
not valid. Adding a flag to check if running is not an option because
of
Hi Jerry,
Looks like you have shutdown NeoService then try to make a backup.
When using the online-backup component NeoService has to be running.
For offline backups you can just copy the store directory.
Regards,
-Johan
On Wed, Jul 29, 2009 at 4:01 AM, Jerry Juanicojtjuan...@gmail.com wrote:
an
error and continue - or to end the loop it is in).
Thanks as always
Neil
On 30 Jul 2009, at 19:45, Johan Svensson wrote:
Hi Neil,
Yes, there are a lot of error messages that needs to be improved. On
the other hand the documentation should state that calling any Neo4j
API operation after
Hi Rob,
Your problem was caused by a bug in the batch inserter. I just
committed a fix for it so a new b9-SNAPSHOT should be available soon.
-Johan
On Tue, Jul 28, 2009 at 11:25 AM, Rob Challenrjchal...@gmail.com wrote:
I'm using the batchinserter to build a graph. I'm not sure if what I am
Hi,
Happy to hear that you got good results and thanks for the kind words.
The RDF components are not officially released yet. We do have
commercial customers using them but they have tailor made solutions to
fit their needs. All in all these components would need some polish
and packaging
People,
I am very happy to announce the release of Neo4j 1.0-b9. It's available here:
http://neo4j.org/download
http://dist.neo4j.org/neo-1.0-b9-binary.zip
http://dist.neo4j.org/neo-1.0-b9-binary.tar.gz
For maven users group / artifact id:
org.neo4j / neo-1.0-b9
This release includes
$DynamicAdvisedIntercept
or.intercept(Cglib2AopProxy.java:635)
and the error went away when reverting back to 0.1
gary
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--
Johan Svensson [jo...@neotechnology.com
Hi,
What is the total number of edges in the graph? Also how much RAM does
the computer have you are running this on?
The batch inserter needs to be configured properly as described in the
last section on the wiki page
[http://wiki.neo4j.org/content/Batch_Insert] to achieve best
performance.
Hi,
Index interface is (old and) used by the NeoIndexService internally to
represent different index implementations. IndexService is the new
interface that you should use together with LuceneIndexService.
The index-util component needs to be documented better and have the
API finalized (with
by loading relationships on demand. This will also
reduce the stress on GC when traversing over a node with many
relationships since much fewer objects will be created.
If you have some suitable project please help us test and try out
these new features.
Regards,
-Johan
--
Johan Svensson [jo
Hi Todd,
What OS do you run this on? The FileChannel.write fail with an
exception saying buffer is too large is new to me.
Try decrease the amount of memory you give the store files (if you
have modified default configuration) and make sure you at least have
disk space to write out 1/10th of the
Hi Rich,
When is the next Meetup?
Not sure if anyone from the Neo4j team will be in the SF area (Oct
26?) but maybe there is someone else here on list that could help out?
At least we should fix the documentation and put more content on the wiki.
-Johan
On Tue, Sep 8, 2009 at 11:57 PM, Rich
Todd,
I successfully ran the code resulting in roughly 190M nodes/properties
and 390M relationships injected in 35min (the condition in one of your
for loops probably has a typo, should have been personnumberOfPeople
and then more relationships would have been created). This was on a
Linux
Looks like there are recovered transactions that the global
transaction manager do not know what to do with.
Have you been running b9/b10 followed by either b6/b7 or b8 on the
same store? Currently we are not backwards compatible and doing so on
a non clean shutdown (ex. let a b9 crash then try
On Thu, Sep 10, 2009 at 2:40 PM, Todd Stavish toddstav...@gmail.com wrote:
Thanks! Quick summary, it was definitely a config issue. Changing to
the recommend config settings makes the exceptions go away. Weird
though, those config values are for VM memory management. But the
exceptions looked
Hi,
Looks like there is an inconsistency between the property store and
either the string or array store (don't know which one since there are
no line numbers).
Terminating the running process (whenever) is not a problem as long as
you let the recovery run on next start-up using the transaction
Hi,
I was able to reproduce this on Windows. Was a bug in the plain
buffer mode (used by default when running on windows). Committed a
fix for it in trunk so if you try with the latest b10-SNAPSHOT the
problem should go away.
Regards,
-Johan
On Fri, Sep 11, 2009 at 11:26 AM, Catalin Marius
Hi,
You can only have one writable NeoService or BatchInserter at the time
to the same Neo4j store. The BatchInserter is intended for import
your data once and can not be used together with a normal NeoService
concurrently.
Regards,
-Johan
On Tue, Sep 15, 2009 at 11:38 AM, Ahmed Abdelsalam
Hi,
Top level transactions are independent of each other so:
1) no B will not be rolled back (if no tx.failure() is invoked on B
and B gets a tx.success() called before tx.finish())
2) no, a committed transaction is committed
As you pointed out, when a transaction is already running starting a
jmontgom...@uchicago.edu wrote:
So, transactions are thread confined?
-Original Message-
From: user-boun...@lists.neo4j.org [mailto:user-
boun...@lists.neo4j.org] On Behalf Of Johan Svensson
Sent: Wednesday, September 16, 2009 8:30 AM
To: Neo user discussions
Subject: Re: [Neo] Multi
On Tue, Sep 15, 2009 at 5:49 PM, Craig Taverner cr...@amanzi.com wrote:
Is this true even if they are run in different threads?
It implies that a graphic application cannot run batch inserts, because it
is almost certain that other elements of the application will have
NeoService open to that
Is this on Windows? Then it can be related to a bug recently found:
http://lists.neo4j.org/pipermail/user/2009-September/001784.html
Bug is fixed in 1.0-b10-SNAPSHOT. This bug is present in the 1.0-b9
release (windows only). Work around is:
o Pass in use_memory_mapped_buffers=true as
Hi,
Go with relationship since that will allow you to traverse both from a
node to its subreference node and vice versa. For example, if you only
have a property pointing out the subreference node you can not easily
figure out all nodes connected to a specific subreference node.
Regarding
Hi,
Do a full thread dump and check for threads waiting (and what they
have locked). The most common cause of these issues is one (or more)
synchronize {} block around a Neo4j write operation. Check the code
for synchronization blocks and try to move Neo4j write operations out
of them.
Another
as you suggest.
Regards,
Marc
On Sat, Oct 10, 2009 at 9:23 AM, Johan Svensson
jo...@neotechnology.comwrote:
Hi,
Do you have a NeoService writing to the store concurrently with the
embedded read only ones?
Regarding the other question you should use one NeoService (instance)
per
On Sun, Oct 11, 2009 at 6:01 PM, Marc Preddie mpred...@gmail.com wrote:
Hi Johan,
That's what I initially suspected, and so I ran a small test to output the
relationship in question, and there is only one.
But wouldn't the same error occur when using a single thread, if there were
more than
there?
2009/10/11, Johan Svensson jo...@neotechnology.com:
On Sun, Oct 11, 2009 at 6:01 PM, Marc Preddie mpred...@gmail.com wrote:
...
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Hi,
How many nodes do you visit during the traversal?
Currently the traverser implementation makes sure you will not visit
the same node twice and it does this by storing the nodes visited in a
set.
-Johan
On Wed, Oct 14, 2009 at 12:33 PM, Andrea Puddu kiedi...@gmail.com wrote:
HI,
This is
at the end of the graph, after it has found all
nodes.
I gave 6GB to the java heap space but, after about 120k nodes, it hangs.
I don't know if there is a better solution then mine to do that.
Andrea
Il giorno 14/ott/2009, alle ore 15.10, Johan Svensson ha scritto:
Hi,
How many nodes do you
and it is not hierarchical.
More specifically, it represent an encyclopedia where nodes are the
Pages and arcs are Links from a Page to another Page.
Regards,
Andrea
Il giorno 14/ott/2009, alle ore 17.26, Johan Svensson ha scritto:
Andrea,
Depending on your graph and the traversal you need to perform
Good memory :)
It was actually Emil who wrote the initial importer. Code is not in
our repository and has not been touched in over 4 years. I will mail
it to you.
-Johan
On Tue, Oct 20, 2009 at 11:03 AM, Peter Neubauer
neubauer.pe...@gmail.com wrote:
Hi there,
Andreas and me have been talking
Hi,
It would be possible to implemented it but as I said it would require
a lot of work. The hard part is to merge the bulk loaded data set in a
safe *transactional* way.
The problem I see with it is that the data you are bulk loading have
to be independent of the rest of the graph. This is
On Fri, Oct 30, 2009 at 5:31 PM, Craig Taverner cr...@amanzi.com wrote:
Hi Johan,
Of course I have a response to each of your excellent points :-)
*'transactional merge'*
I do assume that all database access is locked for the duration of the real
'merge'. But since the merge should be a set
On Mon, Nov 2, 2009 at 9:06 PM, Andreas Guenther
andreas.guent...@web.de wrote:
Hi,
I am getting the below deadlock exception occasionally and so far only
on relationship operations. The code base is trunk. The system this is
running on is Linux and the Java app integrates Neo with Spring
approach for this?
Thank you in advance,
-Andreas
Johan Svensson wrote:
On Mon, Nov 2, 2009 at 9:06 PM, Andreas Guenther
andreas.guent...@web.de wrote:
Hi,
I am getting the below deadlock exception occasionally and so far only
on relationship operations. The code base is trunk. The system
Hi,
Not much has changed since r3108 in trunk, just a few minor changes
related to online-backup. Are you using the online-backup component?
Also are you using memory mapped configuration or not? It can be
configured by setting the use_memory_mapped_buffers=true|false (if you
are running windows
configuration.
Out of curiosity where can I find the configuration properties available and
how are they set?
- Justin
-Original Message-
From: user-boun...@lists.neo4j.org [mailto:user-
boun...@lists.neo4j.org] On Behalf Of Johan Svensson
Sent: Tuesday, November 03, 2009 11:51
On Tue, Nov 10, 2009 at 10:05 PM, Jawher djo.mli...@gmail.com wrote:
- And a *question to the neo4j team* : would using org.neo4j.scala as a
package name and org.neo4j as a maven groupId pause a problem ?
No problem I think (name=neo-scala, groupId=org.neo4j,
package=org.neo4j.scala). I will
On Wed, Nov 11, 2009 at 11:02 AM, Benjamin Dageroth
benjamin.dager...@webtrekk.com wrote:
Hi,
...
Then the best solution for this seems to me that I would run two databases:
First I ask our current current database to give me all Visitors, to whom
this criteria applies, and then ask neo4j
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