Hi Mark,
Following query worked for me fine in the previous version:
START n=node(*), m=node(2) MATCH
p=(m)-[r?:FOLLOWED_BY|CREATED_BY|FOLLOW_PENDING*]->(n) WHERE
has(n.timeBoardName) AND n.timeBoardName =~ "(?i)suk.*" RETURN r, n
-Sukaant Chaudhary
On Fri, Jan 3, 2014 at 12:59 PM, Mark Needham
Also could you paste your query using '?' which worked
On 3 January 2014 07:28, Mark Needham wrote:
> Hey,
>
> Not sure I understand exactly what you're trying to do. Can you create a
> graphgist with a small example data set? http://gist.neo4j.org/
>
> That transaction exception sounds weird t
Hey,
Not sure I understand exactly what you're trying to do. Can you create a
graphgist with a small example data set? http://gist.neo4j.org/
That transaction exception sounds weird though, how do you get that? How
are you executing the query?
Mark
On 3 January 2014 06:33, Sukaant Chaudhary wr
Hi Mark,
I've changed the query as follows:
START m=node(2) MATCH p=(m)-[r:FOLLOWED_BY|CREATED_BY|FOLLOW_PENDING]->(n)
WITH m OPTIONAL MATCH (m)-[r]-(n) WHERE has(n.timeBoardName) AND
n.timeBoardName =~ "(?i).*" RETURN r, n;
Now I'm getting more results, but getting the duplicate results also I'm
Hi Mark,
I tried the following query but still I'm not getting the nodes without
these three relations given, but I want the nodes which is not having that
relation as well.
START n=node(*), m=node(2) MATCH
p=(m)-[r:FOLLOWED_BY|CREATED_BY|FOLLOW_PENDING]->(n) OPTIONAL MATCH
(m)-[s]->n WHERE has(n.
What does
java -version
and
/usr/libexec/java_home -v 1.7
report ?
Michael
Am 10.06.2013 um 00:09 schrieb Nimrod M :
> Once I'm running neo4j start
> I get the message:
>
> WARNING! You are using an unsupported version of the Java runtime. Please use
> Oracle(R) Java(TM) Runtime Environmen
Thanks a lot Johannes for chiming in.
Adding transactions for reads is mostly about creating the foundations for
- repeatable reads,
- better resource management
- allowing support for more isolation levels
- better automatic locking
The move from try - finally to try - with and AutoClosable was
On 12/31/2013 04:12 PM, M. David Allen wrote:
> Just curious, what's the thinking behind requiring transactions for reads?
Since nobody else answered yet I'll take a stab at it :-)
As far as I know the reason for requiring transaction for read
operations is optimization: fetched resources can be
Johannes, yea, i think im just going to go ahead and go with that. thank
you!
On Thursday, January 2, 2014 4:26:42 PM UTC-6, Johannes Mockenhaupt wrote:
>
> Well, since Cypher can't test for property type, how about asking for
> all nodes with the Superclass label that have the name property and
Well, since Cypher can't test for property type, how about asking for
all nodes with the Superclass label that have the name property and then
check and update the returned nodes as necessary in the ruby script?
On 01/02/2014 11:22 PM, Javad Karabi wrote:
> Johannes, youre absolutely right, and i
Johannes, youre absolutely right, and i agree! however, the import script i
used did not take into account the fact that i may sometimes get arrays,
and now my db has arrays and strings intermixed as the name property type.
so, to rectify it, i would like to grab all nodes which have name as an
I don't think having the same property be a string on some nodes and an
array on others is the way to go - you'll end up checking for type all
the time. Which is also not possible in Cypher as far as I know. Why not
make it an array/collection all the time and query it like this:
MATCH (n:Supercla
2014/1/2 M. David Allen
> So this was kind of my thinking as well. I'll play with messages and
> see if I can get more information to post on the source of the bug.
>
Cool
>
> The other thing that's a big pain in the butt about calling success() is
> that it breaks a certain coding pattern.
We're having an issue where our Neo4j based application starts
crawling really, really badly during a Lucene index merge.
This is an issue when we're having unusually high write volume. It
seems as if everyone is applying for a new job after New Years...
We're going to address this issue on multi
Johannes, that seems to be exactly it. some of my nodes have a string, some
an array of strings.
thank you
is it possible, then, to test on a properties type?
On Thursday, January 2, 2014 3:53:20 PM UTC-6, Johannes Mockenhaupt wrote:
>
> I can reproduce this when the property in question is an
I can reproduce this when the property in question is an array of
strings. Thus your 'name' property appears to be an array where you
expect it to be a string.
On 01/02/2014 09:46 PM, Javad Karabi wrote:
> match (n:Superclass) where n.name =~ "(?i).*SWEATERS.*" return n;
>
> Expected [Ljava.lang.
can anyone explain what MERGE and CREATE UNIQUE do, in pseudocode?
im having trouble understanding exactly the order in which one or the other
will decide to create a new relationship, or use a new one.
for example, CREATE UNIQUE will try to use as much of the graph as
possible, does this mean it
match (n:Superclass) where n.name =~ "(?i).*SWEATERS.*" return n;
Expected [Ljava.lang.String;@36b3041f to be a java.lang.String, but it was a
[Ljava.lang.String;
Neo.ClientError.Statement.InvalidType
did i do something wrong in the query?
--
You received this message because you are sub
So this was kind of my thinking as well. I'll play with messages and see
if I can get more information to post on the source of the bug.
The other thing that's a big pain in the butt about calling success() is
that it breaks a certain coding pattern. I used to have code that looked
like thi
I got the same problem on my Raspberry Pi.
First check your java version with
java -version
is it 1.7 ?
If not, then update.
If yes, is it openjdk7 or oracle jdk?
On my raspberry it din't run with oracle, but with opendjk, so maybe u try
this.
Am Montag, 10. Juni 2013 00:09:41 UTC+2 schrieb N
While attempting to import a database from Neo4j to Gephi, I get the
following error:
Exception in thread "main" java.lang.ClassCastException: java.lang.String
cannot be cast to java.lang.Long
at
org.gephi.neo4j.plugin.impl.Neo4jDelegateProviderImpl.getNodeAttributeValue(Neo4jDelegateProviderIm
I would like know what is the solution for this problem. Thank you!!
El jueves, 9 de mayo de 2013 18:48:32 UTC-3, Michael Hunger escribió:
>
> Gabe,
>
> Thanks for reporting.
>
> I try to work with the Gephi team to figure that out, stay tuned.
>
> Michael
>
> Am 09.05.2013 um 18:00 schrieb Gabrie
When using a graph database for a recommendations engine, would not the
suggested recommendations continue to reenforce themselves, thus kind of
creating a feedback loop?
How does one prevent this from happening?
--
You received this message because you are subscribed to the Google Groups
"Neo
Hi David,
unfortunately I think the root cause of the failure to commit is lost in
the thrown exception. You can have a look in messages.log for the cause, or
just attach you message.log here with a rough timestamp when this happened.
When we dig up that root cause we can argue if it's strange and
FYI https://github.com/neo4j/neo4j/pull/1780 should help some there.
2013/12/23 Michael Hunger
> I rather think this is the culprit, as there are *145 threads stuck
> (BLOCKED)* in the same place
>
> "qtp911690433-360" prio=10 tid=0x02605800 nid=0x2fbd runnable
> [0x7da10e3e1000]
>
Now that I think about it again, why should a call to tx.success() be
needed at all on a r/o tx? Default is to not commit and rollback. Only
close() needs to be called to clean up resources. Maybe Neo4j throws
because you want it to commit something when there's nothing to commit
;-) Seriously
Yes, but isn't that returning an executionengine when you want to return
say a node object?
On Thu, Jan 2, 2014 at 9:52 AM, Wes Freeman wrote:
> The top example is using 2.0 indexes with constraints:
>
> http://docs.neo4j.org/chunked/snapshot/tutorials-java-embedded-unique-nodes.html#tutorials-
The top example is using 2.0 indexes with constraints:
http://docs.neo4j.org/chunked/snapshot/tutorials-java-embedded-unique-nodes.html#tutorials-java-embedded-unique-get-or-create
On Thu, Jan 2, 2014 at 9:36 AM, Alex Frieden wrote:
> Hi all,
> I saw this:
> http://docs.neo4j.org/chunked/snapsh
I wrote up an example of translating a query using ? to use OPTIONAL MATCH
here -
http://www.markhneedham.com/blog/2013/11/23/neo4j-2-0-0-m06-2-0-0-rc1-optional-relationships-with-optional-match/
Can you have a look at that and see whether you're able to follow the same
reasoning I did to adjust y
Hi all,
I saw this:
http://docs.neo4j.org/chunked/snapshot/tutorials-java-embedded-unique-nodes.html
Is there a way to do this using the schema index instead of the legacy
index? I have set up schema indexes (so property per label). I want to
use that for unique node creation. Any thoughts?
Hi all,
I saw
this:
http://docs.neo4j.org/chunked/snapshot/tutorials-java-embedded-unique-nodes.html
Is there a way to do this using the schema index instead of the legacy
index? I have set up schema indexes (so property per label). I want to
use that for unique node creation. Any thoughts?
Sorry, this was my mistake on the original post -- I'm not calling
tx.finish() at all, but rather tx.success() at the end of the try block.
The original question stands though - what are the various reasons why a
transaction would fail when nothing inside of the transaction is modifying
the gra
Hi,
I want to search for all the nodes which have the given relation and which
does not have the given relations, for that what changes I need to do in
the following query?
It was working fine with previous versions by using "?".
START n=node(*), m=node(2) MATCH
p=(m)-[r:FOLLOWED_BY|CREATED_BY|FOL
I meant: how did you "actually import" the data.
Micheal
Am 02.01.2014 um 10:07 schrieb Rio Eduardo :
> I just followed your instruction to import the data.
>
> first, change permission of the db folder I want to use
> second, change neo4j-server.properties into this one ->
> org.neo4j.server.
Hi Karol,
It has to do with health care policy in the UK and is academic in nature.
That's about as much as I can say at the moment.
~ icenine
On Thursday, January 2, 2014 9:52:42 AM UTC, Karol Brejna wrote:
>
> Ice,
>
> It seems you are doing something very interesting. What system are you
>
Hi Mark,
I tried the following query, it is working fine in my localhost:
START a=node(3896) MATCH
(a)-[:PUBLISHED_BY]->(c)<-[:PUBLISHED_UNDER]-(b),
(a)-[:CREATED_BY]->(b) WITH c OPTIONAL MATCH (c)-[r]-(), (b)-[s]-()
DELETE c, r, b, s;
but when I'm running it in my server it is giving the followi
Hi Luanne,
It is neo4j 1.9.5 server and I could perform delete operation if it have
less amount of data,but when it have huge data it is failing.
Thanks,
Ramesh Yakkala.
On Thursday, January 2, 2014 1:40:10 PM UTC+5:30, Luanne wrote:
>
> Actually ignore that, delete n,r appears to work on 2.0.
Ice,
It seems you are doing something very interesting. What system are you
building? Is it possible for you to shed some light on it?
Regards,
Karol
W dniu czwartek, 2 stycznia 2014 00:14:00 UTC+1 użytkownik icenine napisał:
>
> Hi Michael,
>
> I've posted the newest code here: http://pasteb
I just followed your instruction to import the data.
first, change permission of the db folder I want to use
second, change neo4j-server.properties into this one
-> org.neo4j.server.database.location=data/my.graphdb
that's all.
On Thursday, January 2, 2014 1:36:57 AM UTC+7, Michael Hunger wrote
this is neo4j 1.9.5 server.
On Thursday, January 2, 2014 1:40:10 PM UTC+5:30, Luanne wrote:
>
> Actually ignore that, delete n,r appears to work on 2.0. Thought it did
> not on earlier versions.
>
>
> On Thu, Jan 2, 2014 at 1:38 PM, Luanne Coutinho
>
> > wrote:
>
>> Not sure about that exact ex
Hi Sukant,
This is the problem:
SyntaxException: Question mark is no longer used for optional patterns -
use OPTIONAL MATCH instead (line 1, column 88)
The syntax for optional match has changed. Can you try changing your query
based on this page:
http://docs.neo4j.org/chunked/stable/query-optio
Hi,
I used the following query but I'm getting the following exception:
START a=node(2) MATCH (a)-[:PUBLISHED_BY]->(c)<-[:PUBLISHED_UNDER]-(b) WITH
c MATCH (c)-[r?]-() DELETE c, r;
==> SyntaxException: Question mark is no longer used for optional patterns
- use OPTIONAL MATCH instead (line 1, colu
Actually ignore that, delete n,r appears to work on 2.0. Thought it did not
on earlier versions.
On Thu, Jan 2, 2014 at 1:38 PM, Luanne Coutinho
wrote:
> Not sure about that exact exception, but looking at your query, you have
> to delete relationships first and then the nodes:
>
> START n = nod
Not sure about that exact exception, but looking at your query, you have to
delete relationships first and then the nodes:
START n = node(*) MATCH n-[r?]-() WHERE ID(n)>0 DELETE r,n
-Luanne
On Thu, Jan 2, 2014 at 1:10 PM, Ramesh Yakkala wrote:
> Hi,
>
> I setup the HA environment with admin,
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