should exist to a single node?
At what point does it make sense to take the relational approach and go
with an index of some kind (a label, or an indexed attribute)?
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Created GitHub Issue https://github.com/neo4j/neo4j/issues/9992
I forgot to say - yes, I did restart Neo4j (several times).
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On Tue, Sep 5, 2017, at 08:47 AM, Alan Robertson wrote:
> I'm getting an error message when running the query below:
>
>
index(neo4j.Node, "FooBar")
It goes into an infinite recursion loop in get_or_create_index().
Is this a problem with using 3.2? With the version of py2neo? Or something else?
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Alan Robertson
al...@unix.sh
On Wed, Jul 5, 2017, at 08:09 PM, Alan Robertson wrote:
> I'm trying to get
() and getting permission
denied.
Has that finally gone away? Or did I break something?
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. This
is equivalent to the question of "What does this program do?" - which is
known to be impossible to answer for Turing-complete languages.
Michael's suggestion of a query generator which only generates updates
which conform to the schema is likely your best bet.
--
Alan Robertson
al...@unix.sh
O
>
> So, shouldn't you just not store a cars property in your example?
>
> Sent from my iPhone
>
> On Oct 19, 2016, at 14:49, Alan Robertson <al...@unix.sh
> <mailto:al...@unix.sh>> wrote:
>
>> In their data typing system, they need t
In their data typing system, they need to know the type of the array
elements.
For example: Is it an array of strings, or ints, or floats?
There is no "array of to-be-determined"...
So, they don't consider it a bug...
In my case either I don't set that attribute to a value when I create
the
into circumstances where they /will/
need their data...
-- Alan
On 09/22/2016 03:47 PM, Alan Robertson wrote:
> Wrong. I didn't test what I thought I did - it's still broken - Sigh...
>
> For some reason I didn't have the initial failure messages in the logs
> below - but here are some additio
] Database panic: Database has encountered
some problem, please perform necessary action (tx recovery/restart) this
IndexReader is closed
On 09/22/2016 03:39 PM, Alan Robertson wrote:
> It looks like this is some kind of bug related to Docker and apparmor.
> Disabling apparmor makes it g
It looks like this is some kind of bug related to Docker and apparmor.
Disabling apparmor makes it go away...
On 09/01/2016 11:11 AM, Alan Robertson wrote:
> Hi,
>
> I've been having trouble with getting Neo4j to start in a docker
> image. This image was produced by a Dockerfile wh
(LogFileRecoverer.java:80)
at
org.neo4j.kernel.impl.transaction.log.LogFileRecoverer.visit(LogFileRecoverer.java:30)
at org.neo4j.kernel.recovery.Recovery.init(Recovery.java:86)
at
org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:406)
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ALL nodes and ALL rels of the
>paths which can potentially become huge
>// you can check it with returning count(*), count(distinct n),
>count(distinct r) after the two unwinds
>UNWIND nodes(p) AS n
>UNWIND rels(p) AS r
> RETURN [x in COLLECT(DISTINCT n) WHERE x
group and stop receiving emails from it, send
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al...@assimilationsystems.com <mailto:al...@assim
tle experimentation...
Any thoughts?
I'm going back to bed now. Will look into it some more in the morning... ;-)
On 07/21/2016 02:09 PM, Alan Robertson wrote:
> On 04/28/2016 03:32 PM, Alan Robertson wrote:
>> The query isn't quite right. It has an error in it (variable n
>> already u
On 04/28/2016 03:32 PM, Alan Robertson wrote:
> The query isn't quite right. It has an error in it (variable n already
> used) and something about the order of operations causes it to return
> more than one row - with duplicates ;-)
>
> But this one seems to do the trick
oups.com
>> <mailto:neo4j+unsubscr...@googlegroups.com>.
>> For more options, visit https://groups.google.com/d/optout.
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> To unsubscribe from this group and stop
, or even a bug/deficiency in the REST API.
But from reading your code, it looked like you weren't expecting this
kind of result.
"neo4j::all":"3.0.0",
"py2neo": "2.0.8",
On 04/28/2016 03:32 PM, Alan Robertson wrote:
> The query isn't quite right. It ha
des(path))), collect(distinct unwind(rels(path)))|
What do you think?
On 04/28/2016 07:59 AM, Alan Robertson wrote:
> Hi,
>
> Michael Hunger separately provided me this query - which is a
> prototype query which looks like it will do what I want. It includes
> features of Cypher
out!
I kind of wonder how this gets mapped into py2neo - what type are the
tuple elements -- list(Relationship) and list(Node) or something like
that...
*Nigel?*
I know my code won't currently handle this - but I can fix that ;-)
-- Alan
On 04/25/2016 08:28 AM, Alan Robertson
This morning, my OS offered me the opportunity to upgrade my Neo4j to
3.0.0 - so I upgraded.
I ran my tests on the Assimilation project, and they all passed.
YAY!
Thanks to everyone at Neo4j for their continual progress, along with
excellent testing!
-- Alan
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ation...
This seems like a very common thing to want to do...
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&l
from py2neo.packages.neo4j.v1 import basic_auth
File "py2neo/packages/neo4j/v1/__init__.py", line 22, in
from .session import *
File "py2neo/packages/neo4j/v1/session.py", line 32, in
from ssl import SSLContext, PROTOCOL_SSLv23, OP_NO_SSLv2,
CERT_REQUI
No one has any suggestions on how to write a query like this?
Do I just find all possible paths and sort on length of path?
On 12/23/2015 11:18 AM, Alan Robertson wrote:
> I want to find the shortest path to any node which has a specific
> pr
=US’:
Issued certificate has expired.
ERROR: no certificate subject alternative name matches
requested host name ‘neo4j.com’.
To connect to neo4j.com insecurely, use `--no-check-certificate'.
servidor:~/monitor/src/docker/installertest $
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a question like "Where is the closest ATM?". I want
the shortest path to a node with a particular property (i.e., that
satisfies a particular predicate).
ATM == Cash machine == Geldautomat and no doubt other names ;-)
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al...@assimil
/neotechnology.gpg.key | apt-key add -
*Could someone harangue godaddy and get them to fix this?*
But now I know that this is really *your* gpg key for sure.
On 09/16/2015 09:56 AM, Alan Robertson wrote:
>
> I also asked this question on serverfault:
> http://serverfault.com/questio
) are now mature and still in active development so will
> often provide better results.
>
> Cheers
> Nigel
>
>
> On 19 August 2015 at 13:30, Alan Robertson <al...@unix.sh
> <mailto:al...@unix.sh>> wrote:
>
> I turned on Nigel's debugging. This is the error th
2neo/core.py", line 2484,
in unicode
writer.write_relationship(self)
File "/usr/local/lib/python2.7/dist-packages/py2neo/cypher/lang.py",
line 185, in write_relationship
self.write_node(relationship.start_node)
File "/usr/local/lib/python2.7/dist-packages/py2neo/cypher/lang.p
N ip, nic
> ORDER BY ip.ipaddr
>
> in 2.x syntax
>
> MATCH (ip:IPAddress)
> OPTIONAL MATCH (nic)-[:ipowner]->(ip)
> WHERE NOT ((host)-[:nicowner]->(nic))
> RETURN ip, nic
> ORDER BY ip.ipaddr
>
> On Tue, Sep 1, 2015 at 2:43 PM, Alan Robertson <al.
': u'unknown'}
{1} 201 Relationship graph=u'http://localhost:7474/db/data/'
ref=u'relationship/60444' start=u'node/35917' end=u'node/35910' t
ype=u'IS_A' properties={}
It points to the problem as being with the index/node/Person update.
On 08/17/2015 11:50 AM, Alan Robertson wrote:
Hi,
Twice I've tried
. to a bunch of calls, changed a few imports and added more
debug when it didn't work.
This looks a bit like a bug in py2neo to me. Suggestions on how to proceed?
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Assimilation Systems
?*
Thanks!
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= submit(self.method, uri, self.body, headers)
File
/usr/local/lib/python2.7/dist-packages/py2neo/packages/httpstream/http.py,
line 264, in submit
raise ValueError(Unsupported URI scheme + repr(uri.scheme))
*ValueError: Unsupported URI scheme None*
Suggestions?
Thanks in advance!
-- Alan
done for 2.0, that would have caught the
problems before they came out.
Are you considering doing better testing using some of the bindings?
[Hint: feel free to use my Dockerfile :-D]
-- Alan Robertson
al...@unix.sh
On 09/24/2014 04:33 PM, Michael Hunger wrote:
-- Forwarded
Hi,
If all you need is to tell if it's operating correctly (like for
alerting), I wrote an OCF resource agent for that:
http://hg.linux-ha.org/assimilation/file/tip/ocf/neo4j
It performs a simple query and verifies the result.
-- Alan Robertson
al...@unix.sh
On 09/03/2014 11
Any given relationship is of exactly one type.
Two nodes can have any number of relationships of different types
between them.
Relationships can also have attributes - a potentially large number of
attributes.
On 09/03/2014 06:57 AM, Jeyaganeshan Jeyatharsini wrote:
Am I able to add more than
I haven't watched neo4j run for long periods of time, but I would try
this to start:
- put everything on HDD
- shut down Neo4j
- move everything under graph.db, keystore, and possibly rrd on SSD
- create symlinks for the graph.db directory and the keystore and
possibly rrd files
One thing that's a concern for my application is security -- and I doubt
that Neo4j will ever have the right kind of security for user-level
access. This is often the case -- because the application's visibility
rules are typically domain-specific.
Most web apps I know of implement their own
into a different thread.
For your second question there was an excellent post on that topic lately:
http://npzr.tumblr.com/post/93209569476/graph-visualization-is-harder-than-it-needs-to-be
Michael
Am 29.08.2014 um 02:18 schrieb Alan Robertson al...@unix.sh
mailto:al...@unix.sh:
One thing that's
I'm not sure what you mean by belong to different classes. Perhaps
others have the same confusion.
On 08/25/2014 06:56 AM, Mohana Krishna wrote:
Thanks for the info. Any help regarding the 2nd question? (efficient
way of querying for cliques of different sizes such that each of the
nodes in
What OS are you testing on, and how did you install Neo4j?
On 08/25/2014 01:15 AM, Moop wrote:
I'm getting a strange behaviour in trying to set up and run an Spring
Data Neo4j project.
Here is my starting simple
project: https://github.com/MohamedNadjibMAMI/Spring-Data-Neo4j
I created a
I have a similar issue - but *only* on RHEL 6 installed via the RPM.
But I don't have it on any other platform or installation method. So,
it doesn't sound like the same problem.
On 08/25/2014 09:49 AM, Moop wrote:
I'm on Windows 8.1.
I installed Neo4j 2.1.2 Community (dev mode i.e. not
to be root - not neo4j.
That's what I recall that I did that worked. [Then I did a complete
reinstall, and haven't looked at it since then].
-- Alan Robertson
al...@unix.sh
On 08/20/2014 12:51 AM, Johannes Mockenhaupt wrote:
If you're using the tar achive from the Neo4j website
what I recall that I did that worked. [Then I did a
complete reinstall, and haven't looked at it since then].
-- Alan Robertson
al...@unix.sh javascript:
On 08/20/2014 12:51 AM, Johannes Mockenhaupt wrote:
If you're using the tar achive from the Neo4j website (as opposed
with 5 cores.
/Stepping on each other/ generally means data corruption. My test
machine has 8 cores. So, I should expect database corruption?
-- Alan Robertson
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use pejorative phrases like legacy index, that
means you shouldn't make new applications that use it -- it's going away.
Thanks!
-- Alan Robertson
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Julian:
Have you had a chance to look at this bug yet? Any prognosis on when?
On 07/30/2014 08:02 PM, Alan Robertson wrote:
OK. This is an RPM problem *only*. It works fine if I install 2.1.3
from tar ball - but not from the RPM. I'll update the github issue.
On 07/30/2014 07:35 PM, Alan
is neo4j-shell -- not neo4j-bash.
There is no command named neo4j. What is it exactly that you're looking
for?
Where it is found depends on how you installed it. How did you install it?
In any case, it doesn't normally get installed in any default bin directory.
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VERSION 1.6.4
3 minutes ago-Edit
https://trello.com/c/B41LtH8K/8-assimilation-py2neo-are-incompatible-with-current-neo4j#-Delete
https://trello.com/c/B41LtH8K/8-assimilation-py2neo-are-incompatible-with-current-neo4j#
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.
On 07/19/2014 12:09 PM, Alan Robertson wrote:
A little more detail about the failure mode:
I added a single node to the database, related it to itself three
ways, added it to the index.
committed the transaction - returned results from the commit
looked correct
Tried a get_properties
never actually used it.
On 15 July 2014 23:41, Alan Robertson al...@unix.sh
mailto:al...@unix.sh wrote:
Yes. There are lots of ways to do that. After all, it's all open
source :-D.
Are you familiar with docker?
On 07/15/2014 04:19 PM, Nigel Small wrote:
Can you share
into the directory you just made
copy the above text into a file in that directory - named Dockerfile
docker.io build .
This is a completely clean-room demonstration of the problem in CentOS6.
On 07/17/2014 08:16 AM, Alan Robertson wrote:
Hi Nigel,
Many thanks for your quick reply!
I can
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You've had .deb packages of Neo4j for a long time.
Do you have a YUM (RPM) repository for Neo4j?
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It says it's not suitable for production work. Is that still true?
On 07/14/2014 02:29 PM, Wes Freeman wrote:
This one:
http://yum.neo4j.org/
On Mon, Jul 14, 2014 at 4:25 PM, Alan Robertson al...@unix.sh
mailto:al...@unix.sh wrote:
You've had .deb packages of Neo4j for a long time
On 7/9/2014 5:44 PM, Clark Richey wrote:
Just to chime in, more complex types such as maps would be immensely
valuable!
Agreed.
I absolutely require maps -- so I store mine in JSON. Unfortunately, I
can't query them. But at least I have the data, and my software can
process it.
Sent
/python2.6/httplib.py, line 355, in _read_status
raise BadStatusLine(line)
BadStatusLine
What's up with this? Working with RHEL6 seems to be a really good idea...
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.
Cheers
Nigel
On 5 April 2014 21:24, Alan Robertson al...@unix.sh
mailto:al...@unix.sh wrote:
Hi,
When I run my tests on CentOS6.4 (python 2.6) I get a
BadStatusLine error. When I run them on CentOS 6.5, they run fine.
The code is just asking what version of Neo4j we
anything else :-)
As always, though, I'm happy to review pull requests on py2neo to fix
issues for the operating system(s) you're using.
Cheers
Nige
On 5 April 2014 23:33, Alan Robertson al...@unix.sh
mailto:al...@unix.sh wrote:
It's worth noting that RHEL6 is probably the most
.
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Good to know! Thanks!!
On 1/22/2014 6:08 PM, Michael Hunger wrote:
Hi Alan,
It is one to two weeks out.
Cheers
Michael
On Thu, Jan 23, 2014 at 2:06 AM, Alan Robertson al...@unix.sh
mailto:al...@unix.sh wrote:
Having asked the question, an answer would be appreciated :-D.
When
that takes a JSON string and returns a map. Actually--that might
be general purpose enough to go into Cypher itself, especially
since Cypher does have map support.
Wes
On Fri, Dec 6, 2013 at 10:48 PM, Alan Robertson al...@unix.sh
javascript: wrote:
Yes
On 12/29/2013 3:11 AM, Nigel Small wrote:
While I agree that JSON has very broad acceptance and use, I have to
disagree on one very major point: JSON is a data interchange format,
not a data type. The distinction is quite significant.
This thread was spawned from a previous closed
type supported.
Nige
On 28 December 2013 17:01, Alan Robertson al...@unix.sh
mailto:al...@unix.sh wrote:
I don't understand how this would help my use case. I don't have
any problem serializing/deserializing it. The example you gave
seems too trivial to be helpful.
Given
and automatically start monitoring it with this resource agent.
So, now whenever I see neo4j, I start monitoring it for correct
operation -- automatically ;-)
[We do it for many other things as well, but the neo4j part seems most
interesting to this mailing list].
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Alan Robertson al
device
Am 18.12.2013 um 06:41 schrieb Alan Robertson al...@unix.sh:
The query in the script below produces the following output:
{results:[{columns:[one,rel,two],data:[{row:[{domain:metadata,nodetype:CMAclass,name:HbRing},{},{domain:metadata,nodetype:CMAclass,name:CMAclass}]}]}],errors:[]}
What
18, 2013 at 10:56 AM, Alan Robertson al...@unix.sh
mailto:al...@unix.sh wrote:
Thanks for the explanation. I have always (mistakenly) thought of
the type of the relationship as a sort of property.
In any case, the script seems to work quite nicely, and is easy to
autogenerate
with back until 1.8 and maybe earlier... will return
fast as long as there aren't millions of empty nodes at the beginning
of the file
start n=node(*) return n limit 1;
Wes
On Wed, Dec 18, 2013 at 3:11 PM, Alan Robertson al...@unix.sh
mailto:al...@unix.sh wrote:
Should I open an issue
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