Re: [Neo4j] performance issues with ubuntu
Hi Peter Sounds interesting. I think small transactions are a common use case and being able to use them would boost neo4j into new spheres :-) Btw, congratulation for the whole project. Nice api, simple concepts. Well done! Cheers, Marco -Original Message- From: user-boun...@lists.neo4j.org on behalf of Peter Neubauer Sent: Tue 31.05.2011 18:06 To: Neo4j user discussions Subject: Re: [Neo4j] performance issues with ubuntu Marco, yes, small transaction require many disk flushes, so you are seeing the limits of the OS IO. However, we are working on a MUCH faster mode of relaxed writing, apart from minimizing the number of files to flush. We hope to have these optimizations as part of 1.4, which means they will appear hopefully in the next milestones. HTH. Cheers, /peter neubauer GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://startupbootcamp.org/- Öresund - Innovation happens HERE. http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. On Tue, May 31, 2011 at 5:45 PM, Marco Gerber mger...@junisphere.netwrote: Hello everybody The performance issue results from a too small transaction size. If I commit only after 1000 traversials, the execution time for every traversial speeds up to ~ 300 times. The same thing happens on windows where the speed is near infinity :-). It seems, that there are two problems with the current implementation (also tested with 1.4.M03). One with the case of handling transactions on linux itself and the other with handling small transactions with good performance in general. jm2c, Marco -Original Message- From: user-boun...@lists.neo4j.org on behalf of Marco Gerber Sent: Tue 31.05.2011 08:58 To: Neo4j user discussions Subject: Re: [Neo4j] performance issues with ubuntu Hello everybody A collection of reference benchmarks would be great, but completely independent of this, my problem is making my application on linux as performant as on windows. Thanks guys, Marco -Original Message- From: user-boun...@lists.neo4j.org on behalf of Rick Bullotta Sent: Mon 30.05.2011 18:02 To: j...@neotechnology.com; user@lists.neo4j.org Subject: Re: [Neo4j] performance issues with ubuntu Hi, Jim. Not really thinking of benchmarks, which I agree are tricky to define and even trickier to standardize. Plus, given the nearly infinitely cool things you can do with neo, it borders on impossible. Rather, I'm just thinking of wikifying some of the platform specific best practices and gotchas/known issues for each. Rick - Reply message - From: Jim Webber j...@neotechnology.com Date: Mon, May 30, 2011 11:55 am Subject: [Neo4j] performance issues with ubuntu To: Neo4j user discussions user@lists.neo4j.org Hi Rick, I concur that we should perhaps have some perf figures, but it's one of those things that's easier said than done. For instance, right now we have performance tests running as part of the Windows/Linux/Mac continuous build and we will fail the build if we drop on those numbers. Yet creating representative benchmarks (similar to the TPC-X benchmarks perhaps) is not only difficult, but will almost certainly be of no use to users or customers when choosing a graph database or in designing out their own solutions because your access patterns are likely to be so different from the benchmark patterns. But if the community could come together and loosely agree upon some representative benchmarks that would be useful to them (platform/setup/access pattern) then we could get something into our build and publishing numbers with a little effort. Jim ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] finding commonalities between people
Peter, I have thinks partially working. sending: script=g.v(1); works perfectly however sending: script=n=g.v(1); fails with = javax.script.ScriptException: groovy.lang.MissingPropertyException: No such property: n for class: Script3 if I try sending: script=n=g.v(1); fails with = org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:\nScript6.groovy: 49: unexpected char: 0x @ line 49, column 3.\n \n\n ^\n\n1 error\n So the question is, how can I assign a variable? On Tue, May 31, 2011 at 11:46 PM, Peter Neubauer peter.neuba...@neotechnology.com wrote: Now the files should be uploaded. Have fun! Cheers, /peter neubauer GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://startupbootcamp.org/- Öresund - Innovation happens HERE. http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. On Tue, May 31, 2011 at 10:28 PM, John Bale nos...@gmail.com wrote: Peter, you're the best! Will start working on integrating this tonight. On Tue, May 31, 2011 at 11:25 PM, Peter Neubauer peter.neuba...@neotechnology.com wrote: John, what maven version are you running? Anyway, uploaded a locally built version of the community server to http://dl.dropbox.com/u/5925006/neo4j-dist/neo4j-community-1.4-SNAPSHOT-unix.tar.gzand the Gremlin plugin jar (drop it into $NEO4J_HOME/plugins) at http://dl.dropbox.com/u/5925006/neo4j-dist/neo4j-gremlin-plugin-0.1-SNAPSHOT.jar Lemme know how it goes, it should behave according to the tests at https://github.com/neo4j/neo4j-gremlin-plugin/blob/master/features/start-and-stop.featureand https://github.com/neo4j/neo4j-gremlin-plugin/blob/master/src/test/java/org/neo4j/server/plugin/gremlin/GremlinPluginFunctionalTest.java Cheers, /peter neubauer GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://startupbootcamp.org/- Öresund - Innovation happens HERE. http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. On Tue, May 31, 2011 at 10:19 PM, John Bale nos...@gmail.com wrote: Peter, Got the community git, mvn clean install and it's returning test failures. Results : Failed tests: shouldGet204WhenRemovingAValidRelationship(org.neo4j.server.rest.RemoveRelationshipFunctionalTest) Tests in error: Tests run: 468, Failures: 56, Errors: 23, Skipped: 13 [ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.6:test (default-test) on project neo4j-server: There are test failures. [ERROR] [ERROR] Please refer to /Users/m/Work/neo-community/server/target/surefire-reports for the individual test results. [ERROR] - [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException [ERROR] [ERROR] After correcting the problems, you can resume the build with the command [ERROR] mvn goals -rf :neo4j-server On Tue, May 31, 2011 at 10:52 PM, Peter Neubauer peter.neuba...@neotechnology.com wrote: John, yes, sunshine and the graphmatching lib have just moved into the community build and thus are not deployed to the repos yet by the buildserver. Just build the community repo with mvn clean install and you should get them installed into your local repo. Then, in the packaging repo, you only should need to build the standalone project, QA is doing smoketests and other stuff ensuring that the server is really booting on all platforms, installing plugins etc. Cheers, /peter neubauer GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://startupbootcamp.org/- Öresund - Innovation happens HERE. http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. On Tue, May 31, 2011 at 9:49 PM, John Bale nos...@gmail.com
Re: [Neo4j] finding commonalities between people
John,
you need to URL encode if you are sending complex scripts. Look at
https://github.com/neo4j/neo4j-gremlin-plugin/blob/master/src/test/java/org/neo4j/server/plugin/gremlin/GremlinPluginFunctionalTest.javafor
the URL encoded script. That will translate into
send-a-gremlin-script,-json-encoded.txt
send-a-gremlin-script,-url-encoded.txt
[~/code/neo/neo4j-gremlin-plugin/target/rest-api] $cat
send-a-gremlin-script,-json-encoded.txt
[[rest-api-send-a-gremlin-script,-json-encoded]]
=== Send a Gremlin Script, JSON encoded ===
_Example request_
* *+POST+* +
http://localhost:7474/db/data/ext/GremlinPlugin/graphdb/execute_script+
* *+Accept:+* +application/json+
* *+Content-Type:+* +application/json+
[source,javascript]
{script:i = g.v(4);i.outE.inV}
_Example response_
* *+200:+* +OK
* *+Content-Type:+* +application/json+
[source,javascript]
[ {
outgoing_relationships :
http://localhost:7474/db/data/node/3/relationships/out;,
data : {
name : you
},
traverse : http://localhost:7474/db/data/node/3/traverse/{returnType};,
all_typed_relationships :
http://localhost:7474/db/data/node/3/relationships/all/{-list||types},
property : http://localhost:7474/db/data/node/3/properties/{key};,
self : http://localhost:7474/db/data/node/3;,
properties : http://localhost:7474/db/data/node/3/properties;,
outgoing_typed_relationships :
http://localhost:7474/db/data/node/3/relationships/out/{-list||types},
incoming_relationships :
http://localhost:7474/db/data/node/3/relationships/in;,
extensions : {
FunctionalTestPlugin : {
connected_nodes :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/connected_nodes
,
pathToReference :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/pathToReference
,
getThisNodeOrById :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/getThisNodeOrById
,
createRelationships :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/createRelationships
,
getRelationshipsBetween :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/getRelationshipsBetween
},
GraphCloner : {
clonedSubgraph :
http://localhost:7474/db/data/ext/GraphCloner/node/3/clonedSubgraph;
}
},
create_relationship :
http://localhost:7474/db/data/node/3/relationships;,
all_relationships :
http://localhost:7474/db/data/node/3/relationships/all;,
incoming_typed_relationships :
http://localhost:7474/db/data/node/3/relationships/in/{-list||types}
} ]
In the generated documentation. Doe that help?
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter http://twitter.com/peterneubauer
http://www.neo4j.org - Your high performance graph database.
http://startupbootcamp.org/- Öresund - Innovation happens HERE.
http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
On Wed, Jun 1, 2011 at 11:27 AM, John Bale nos...@gmail.com wrote:
Peter,
I have thinks partially working.
sending: script=g.v(1); works perfectly
however sending: script=n=g.v(1); fails with
= javax.script.ScriptException: groovy.lang.MissingPropertyException: No
such property: n for class: Script3
if I try sending: script=n=g.v(1); fails with
= org.codehaus.groovy.control.MultipleCompilationErrorsException: startup
failed:\nScript6.groovy: 49: unexpected char: 0x @ line 49, column 3.\n
\n\n ^\n\n1 error\n
So the question is, how can I assign a variable?
On Tue, May 31, 2011 at 11:46 PM, Peter Neubauer
peter.neuba...@neotechnology.com wrote:
Now the files should be uploaded.
Have fun!
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter http://twitter.com/peterneubauer
http://www.neo4j.org - Your high performance graph
database.
http://startupbootcamp.org/- Öresund - Innovation happens HERE.
http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
On Tue, May 31, 2011 at 10:28 PM, John Bale nos...@gmail.com wrote:
Peter, you're the best! Will start working on integrating this tonight.
On Tue, May 31, 2011 at 11:25 PM, Peter Neubauer
peter.neuba...@neotechnology.com wrote:
John,
what maven version are you running?
Anyway, uploaded a locally built version of the community server to
http://dl.dropbox.com/u/5925006/neo4j-dist/neo4j-community-1.4-SNAPSHOT-unix.tar.gzand
the Gremlin plugin jar (drop it into $NEO4J_HOME/plugins) at
http://dl.dropbox.com/u/5925006/neo4j-dist/neo4j-gremlin-plugin-0.1-SNAPSHOT.jar
Lemme know how it goes, it should behave according to the tests at
Re: [Neo4j] finding commonalities between people
Works like a charm.
Maybe it would be helpful to others if the JSON part was mentioned in the
neo4j-gremlin-plugin github README.
On Wed, Jun 1, 2011 at 12:38 PM, Peter Neubauer
peter.neuba...@neotechnology.com wrote:
John,
you need to URL encode if you are sending complex scripts. Look at
https://github.com/neo4j/neo4j-gremlin-plugin/blob/master/src/test/java/org/neo4j/server/plugin/gremlin/GremlinPluginFunctionalTest.javafor
the URL encoded script. That will translate into
send-a-gremlin-script,-json-encoded.txt
send-a-gremlin-script,-url-encoded.txt
[~/code/neo/neo4j-gremlin-plugin/target/rest-api] $cat
send-a-gremlin-script,-json-encoded.txt
[[rest-api-send-a-gremlin-script,-json-encoded]]
=== Send a Gremlin Script, JSON encoded ===
_Example request_
* *+POST+* +
http://localhost:7474/db/data/ext/GremlinPlugin/graphdb/execute_script+
* *+Accept:+* +application/json+
* *+Content-Type:+* +application/json+
[source,javascript]
{script:i = g.v(4);i.outE.inV}
_Example response_
* *+200:+* +OK
* *+Content-Type:+* +application/json+
[source,javascript]
[ {
outgoing_relationships :
http://localhost:7474/db/data/node/3/relationships/out;,
data : {
name : you
},
traverse : http://localhost:7474/db/data/node/3/traverse/{returnType}
,
all_typed_relationships :
http://localhost:7474/db/data/node/3/relationships/all/{-list||types},
property : http://localhost:7474/db/data/node/3/properties/{key};,
self : http://localhost:7474/db/data/node/3;,
properties : http://localhost:7474/db/data/node/3/properties;,
outgoing_typed_relationships :
http://localhost:7474/db/data/node/3/relationships/out/{-list||types},
incoming_relationships :
http://localhost:7474/db/data/node/3/relationships/in;,
extensions : {
FunctionalTestPlugin : {
connected_nodes :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/connected_nodes
,
pathToReference :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/pathToReference
,
getThisNodeOrById :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/getThisNodeOrById
,
createRelationships :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/createRelationships
,
getRelationshipsBetween :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/getRelationshipsBetween
},
GraphCloner : {
clonedSubgraph :
http://localhost:7474/db/data/ext/GraphCloner/node/3/clonedSubgraph;
}
},
create_relationship :
http://localhost:7474/db/data/node/3/relationships;,
all_relationships :
http://localhost:7474/db/data/node/3/relationships/all;,
incoming_typed_relationships :
http://localhost:7474/db/data/node/3/relationships/in/{-list||types}
} ]
In the generated documentation. Doe that help?
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter http://twitter.com/peterneubauer
http://www.neo4j.org - Your high performance graph database.
http://startupbootcamp.org/- Öresund - Innovation happens HERE.
http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
On Wed, Jun 1, 2011 at 11:27 AM, John Bale nos...@gmail.com wrote:
Peter,
I have thinks partially working.
sending: script=g.v(1); works perfectly
however sending: script=n=g.v(1); fails with
= javax.script.ScriptException: groovy.lang.MissingPropertyException:
No
such property: n for class: Script3
if I try sending: script=n=g.v(1); fails with
= org.codehaus.groovy.control.MultipleCompilationErrorsException:
startup
failed:\nScript6.groovy: 49: unexpected char: 0x @ line 49, column
3.\n
\n\n ^\n\n1 error\n
So the question is, how can I assign a variable?
On Tue, May 31, 2011 at 11:46 PM, Peter Neubauer
peter.neuba...@neotechnology.com wrote:
Now the files should be uploaded.
Have fun!
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter http://twitter.com/peterneubauer
http://www.neo4j.org - Your high performance graph
database.
http://startupbootcamp.org/- Öresund - Innovation happens HERE.
http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing
party.
On Tue, May 31, 2011 at 10:28 PM, John Bale nos...@gmail.com wrote:
Peter, you're the best! Will start working on integrating this
tonight.
On Tue, May 31, 2011 at 11:25 PM, Peter Neubauer
peter.neuba...@neotechnology.com wrote:
John,
what maven version are you running?
Anyway, uploaded a locally built version of the community server to
[Neo4j] Password sent in plain text via email?
I was kind of shocked to see my password sent via email in plain text at the bottom of the monthly mailing list notification from mailman-ow...@lists.neo4j.org. Any way to suppress that part of the message? -- MIKAMAI | Making Media Social http://mikamai.com +447868260229 ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Password sent in plain text via email?
That's standard with mailman. There's a big warning when you add your password that explains this: https://lists.neo4j.org/mailman/listinfo/user Tim McNamara Professional \\ paperlessprojects.com Personal \\ @timClicks http://twitter.com/timClicks | timmcnamara.co.nz On 1 June 2011 23:42, Todd Chaffee t...@mikamai.com wrote: I was kind of shocked to see my password sent via email in plain text at the bottom of the monthly mailing list notification from mailman-ow...@lists.neo4j.org. Any way to suppress that part of the message? -- MIKAMAI | Making Media Social http://mikamai.com +447868260229 ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Password sent in plain text via email?
Todd, I have disabled the monthly password reminder now in order to avoid this. Is anyone fine with that? Cheers, /peter neubauer GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://startupbootcamp.org/- Öresund - Innovation happens HERE. http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. On Wed, Jun 1, 2011 at 1:42 PM, Todd Chaffee t...@mikamai.com wrote: I was kind of shocked to see my password sent via email in plain text at the bottom of the monthly mailing list notification from mailman-ow...@lists.neo4j.org. Any way to suppress that part of the message? -- MIKAMAI | Making Media Social http://mikamai.com +447868260229 ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] finding commonalities between people
Ok,
great! Let the list know how things work out for you! Also, I added this to
https://github.com/neo4j/neo4j-gremlin-plugin/blob/master/README.markdown .
Then, the documentation will eventually be generated and be part of
docs.neo4j.org when this is packaged as a standard Neo4j Server plugin. Hope
to get to that next week.
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter http://twitter.com/peterneubauer
http://www.neo4j.org - Your high performance graph database.
http://startupbootcamp.org/- Öresund - Innovation happens HERE.
http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
On Wed, Jun 1, 2011 at 12:27 PM, John Bale nos...@gmail.com wrote:
Works like a charm.
Maybe it would be helpful to others if the JSON part was mentioned in the
neo4j-gremlin-plugin github README.
On Wed, Jun 1, 2011 at 12:38 PM, Peter Neubauer
peter.neuba...@neotechnology.com wrote:
John,
you need to URL encode if you are sending complex scripts. Look at
https://github.com/neo4j/neo4j-gremlin-plugin/blob/master/src/test/java/org/neo4j/server/plugin/gremlin/GremlinPluginFunctionalTest.javafor
the URL encoded script. That will translate into
send-a-gremlin-script,-json-encoded.txt
send-a-gremlin-script,-url-encoded.txt
[~/code/neo/neo4j-gremlin-plugin/target/rest-api] $cat
send-a-gremlin-script,-json-encoded.txt
[[rest-api-send-a-gremlin-script,-json-encoded]]
=== Send a Gremlin Script, JSON encoded ===
_Example request_
* *+POST+* +
http://localhost:7474/db/data/ext/GremlinPlugin/graphdb/execute_script+
* *+Accept:+* +application/json+
* *+Content-Type:+* +application/json+
[source,javascript]
{script:i = g.v(4);i.outE.inV}
_Example response_
* *+200:+* +OK
* *+Content-Type:+* +application/json+
[source,javascript]
[ {
outgoing_relationships :
http://localhost:7474/db/data/node/3/relationships/out;,
data : {
name : you
},
traverse :
http://localhost:7474/db/data/node/3/traverse/{returnType}
,
all_typed_relationships :
http://localhost:7474/db/data/node/3/relationships/all/{-list||types},
property : http://localhost:7474/db/data/node/3/properties/{key};,
self : http://localhost:7474/db/data/node/3;,
properties : http://localhost:7474/db/data/node/3/properties;,
outgoing_typed_relationships :
http://localhost:7474/db/data/node/3/relationships/out/{-list||types},
incoming_relationships :
http://localhost:7474/db/data/node/3/relationships/in;,
extensions : {
FunctionalTestPlugin : {
connected_nodes :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/connected_nodes
,
pathToReference :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/pathToReference
,
getThisNodeOrById :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/getThisNodeOrById
,
createRelationships :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/createRelationships
,
getRelationshipsBetween :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/getRelationshipsBetween
},
GraphCloner : {
clonedSubgraph :
http://localhost:7474/db/data/ext/GraphCloner/node/3/clonedSubgraph;
}
},
create_relationship :
http://localhost:7474/db/data/node/3/relationships;,
all_relationships :
http://localhost:7474/db/data/node/3/relationships/all;,
incoming_typed_relationships :
http://localhost:7474/db/data/node/3/relationships/in/{-list||types}
} ]
In the generated documentation. Doe that help?
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter http://twitter.com/peterneubauer
http://www.neo4j.org - Your high performance graph
database.
http://startupbootcamp.org/- Öresund - Innovation happens HERE.
http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
On Wed, Jun 1, 2011 at 11:27 AM, John Bale nos...@gmail.com wrote:
Peter,
I have thinks partially working.
sending: script=g.v(1); works perfectly
however sending: script=n=g.v(1); fails with
= javax.script.ScriptException: groovy.lang.MissingPropertyException:
No
such property: n for class: Script3
if I try sending: script=n=g.v(1); fails with
= org.codehaus.groovy.control.MultipleCompilationErrorsException:
startup
failed:\nScript6.groovy: 49: unexpected char: 0x @ line 49, column
3.\n
\n\n ^\n\n1 error\n
So the question is, how can I assign a variable?
On Tue, May 31, 2011 at 11:46 PM, Peter Neubauer
peter.neuba...@neotechnology.com wrote:
Now the files should be uploaded.
Re: [Neo4j] Announcing structr 0.3
Awesome Axel, and congrats to the team developing this. Will be exciting to take an test drive! Cheers, /peter neubauer GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://startupbootcamp.org/- Öresund - Innovation happens HERE. http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. On Wed, Jun 1, 2011 at 5:17 AM, Javier de la Rosa ver...@gmail.com wrote: On Tue, May 31, 2011 at 22:01, Axel Morgner a...@morgner.de wrote: 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]. Congratulations for the work, it looks really interesting. I think is the logical step into the NoSQL scene. -- Javier de la Rosa http://versae.es ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
[Neo4j] Neo4j is Finalist of the JAX-Awards
I never thought we would make it into the finals. Really cool. If you'd like us to win this, please vote for us. We could spend the money for instance on behalf of our user groups. http://vote.jax-awards.com/ Cheers Michael P.S. Please spread the word :) ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Unmanaged Extensions
Hi, Did you solve the ResourceConfig problem? /Håkan -- View this message in context: http://neo4j-user-list.438527.n3.nabble.com/Unmanaged-Extensions-tp2660066p3010994.html Sent from the Neo4J User List mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j is Finalist of the JAX-Awards
Michael, congrats to a terrific talk, you rocked it - wish I had been there! Cheers, /peter neubauer GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://startupbootcamp.org/- Öresund - Innovation happens HERE. http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. On Wed, Jun 1, 2011 at 3:10 PM, Michael Hunger michael.hun...@neotechnology.com wrote: I never thought we would make it into the finals. Really cool. If you'd like us to win this, please vote for us. We could spend the money for instance on behalf of our user groups. http://vote.jax-awards.com/ Cheers Michael P.S. Please spread the word :) ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Experiencing errors with JSON parsing in neo4j-shell
Hi Warren
If you surround the entire map with quotes, and use single quotes for keys
and values, it should work:
mkrel -c -d i -t DOMAIN_OF --np {'app':'foobar'}
Kind regards
ian
--
Director of Customer Success, Neo Technology
http://neotechnology.com
UK: +44 7974 144424
Skype: iansrobinson
On 31 May 2011 19:16, Pfeffer, Warren warren.pfef...@credit-suisse.comwrote:
Hello All,
Experiencing errors with JSON parsing in neo4j-shell
Version neo4j-community-1.4.M02 running on 64bit SLES-10 with
Java 1.6.0_01-b06
I tried all manner of quoting the JSON but no luck.
Thanks in advance for any insight into this problem.
WP
neo4j-sh (0)$ help mkrel
Creates a relationship to a new or existing node, f.ex:
mkrel -ct KNOWS (will create a relationship to a new node)
mkrel -t KNOWS 123 (will create a relationship to node with id 123).
-c Supplied if there should be created a new node.
--cd Go to the created node, like doing 'cd'.
-d The direction: OUTGOING, INCOMING, o, i.
--np Properties (a json map) to set for the new node (if one is
created).
--rp Properties (a json map) to set for the new relationship.
-t The relationship type.
-v Verbose mode: display created nodes/relationships.
neo4j-sh (0)$ mkrel -c -d i -t DOMAIN_OF --np {app:foobar}
org.neo4j.shell.util.json.JSONException: A JSONObject text must end with
'}' at character 1
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[Neo4j] Still can't connect with jython
So I have built jpype+jython+neo4j python on an Fedora machine and it seems to work. The weird thing is that I never installed neo4j on its own. I have a directory called /neo4j-db/path in the jython directory and that's it. Where is the rest of the db (server, tools, etc?). What I'm really trying to do is get this working on my AWS instance which is ubuntu and there everything is installed discretely and I thought logically, but when I call the db I get: import neo4j graphdb = neo4j.GraphDatabase( /opt/neo4j/neo4j-community-1.4.M02/data/graph.db ) Traceback (most recent call last): File stdin, line 1, in module File /opt/jython/jython-2.5.2/Lib/site-packages/neo4j/__init__.py, line 522, in __new__ neo = core.load_neo(resource_uri, params) File /opt/jython/jython-2.5.2/Lib/site-packages/neo4j/_core.py, line 332, in load_neo return load_neo(resource_uri, parameters) File /opt/jython/jython-2.5.2/Lib/site-packages/neo4j/_core.py, line 225, in load_neo return GraphDatabase(resource_uri, settings, config, log) File /opt/jython/jython-2.5.2/Lib/site-packages/neo4j/_core.py, line 230, in __init__ neo = backend.load_neo(resource_uri, settings) File /opt/jython/jython-2.5.2/Lib/site-packages/neo4j/_backend/__init__.py, line 74, in load_neo return impl(resource_uri, implementation.make_map(settings)) at org.neo4j.kernel.impl.transaction.TxModule.registerDataSource(TxModule.java:148) at org.neo4j.kernel.GraphDbInstance.start(GraphDbInstance.java:123) at org.neo4j.kernel.EmbeddedGraphDbImpl.init(EmbeddedGraphDbImpl.java:89) at org.neo4j.kernel.EmbeddedGraphDatabase.init(EmbeddedGraphDatabase.java:76) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.python.core.PyReflectedConstructor.constructProxy(PyReflectedConstructor.java:210) org.neo4j.kernel.impl.transaction.TransactionFailureException: org.neo4j.kernel.impl.transaction.TransactionFailureException: Could not create data source [nioneodb], see nested exception for cause of error Please, Please help! ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Experiencing errors with JSON parsing in neo4j-shell
Added the example to the docs.
https://github.com/neo4j/community/commit/a4aba19e2ad1abcee14207c97b80d69d22455e86
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter http://twitter.com/peterneubauer
http://www.neo4j.org - Your high performance graph database.
http://startupbootcamp.org/- Öresund - Innovation happens HERE.
http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
On Wed, Jun 1, 2011 at 6:07 PM, Ian Robinson ian.robin...@neotechnology.com
wrote:
Hi Warren
If you surround the entire map with quotes, and use single quotes for keys
and values, it should work:
mkrel -c -d i -t DOMAIN_OF --np {'app':'foobar'}
Kind regards
ian
--
Director of Customer Success, Neo Technology
http://neotechnology.com
UK: +44 7974 144424
Skype: iansrobinson
On 31 May 2011 19:16, Pfeffer, Warren warren.pfef...@credit-suisse.com
wrote:
Hello All,
Experiencing errors with JSON parsing in neo4j-shell
Version neo4j-community-1.4.M02 running on 64bit SLES-10 with
Java 1.6.0_01-b06
I tried all manner of quoting the JSON but no luck.
Thanks in advance for any insight into this problem.
WP
neo4j-sh (0)$ help mkrel
Creates a relationship to a new or existing node, f.ex:
mkrel -ct KNOWS (will create a relationship to a new node)
mkrel -t KNOWS 123 (will create a relationship to node with id 123).
-c Supplied if there should be created a new node.
--cd Go to the created node, like doing 'cd'.
-d The direction: OUTGOING, INCOMING, o, i.
--np Properties (a json map) to set for the new node (if one is
created).
--rp Properties (a json map) to set for the new relationship.
-t The relationship type.
-v Verbose mode: display created nodes/relationships.
neo4j-sh (0)$ mkrel -c -d i -t DOMAIN_OF --np {app:foobar}
org.neo4j.shell.util.json.JSONException: A JSONObject text must end with
'}' at character 1
===
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http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html
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[Neo4j] BatchInserter exhausting heap...?
I have a simple program that uses the BatchInserter to load rows from a SQL
database and am running it on a modestly configured Windows machine with 2GB of
RAM and setting the max heap to 500M.
Initially it was running out of memory quite soon so I introduced a flush after
every 5000 nodes and it appeared that all was well. But having got further in
the data load it appears to hop along nicely but the memory allocated (simply
visible using windows task manager) grows and grows until I suspect it's
reached its max heap size and it's written about 2M nodes then abruptly stops
making any further discernible progress. It doesn't fail, just the logging
I've put in to log every 5000 nodes has stopped and the CPU is 100% used -
garbage collecting I suspect.
Is there something I should be doing periodically in addition to theindex
flush to stop the heap exhaustion? My code is really simple, here's the method
for loading nodes from each table:-
public long restoreCollection() {
resolveSql();
_log.debug(restore collection: + getCollectionName() + using:
+ _sql + and: + Arrays.deepToString(_columns));
final BatchInserterIndex _index = makeIndex();
final long collectionNode = _inserter.createNode(MapUtil.map(name,
getCollectionName()));
_log.debug(Query db...);
getJdbcTemplate().query(_sql, new Object[] {},
new RowCallbackHandler() {
public void processRow(ResultSet row) throws SQLException {
final MapString, Object properties =
extractproperties(row);
long node = _inserter.createNode(properties);
_inserter.createRelationship(node, collectionNode,
RdmRelationship.MEMBER_OF, null);
if (_index != null)
for (DbColumn col : _columns) {
if (col.isIndexed())
_index.add(node, MapUtil.map(col.getName(),
properties.get(col.getName(;
}
_collectionSize++;
if ((_collectionSize % FLUSH_INTERVAL == 0)) {
if (_index != null)
_index.flush();
_log.debug(Added node: + _collectionSize
+ to: + getCollectionName());
}
}
});
// long collectionNode = -1;
if (_index != null) {
_index.flush();
}
_log.debug(Completed restoring + _collectionSize + to:
+ getCollectionName());
return collectionNode;
}
and then around that a higher level function that handles all tables:-
public void run() {
throwIfNull(_restorers, Restorers missing);
throwIfNull(_inserter, Batch inserter missing);
int totalNodes = 0;
int totalRelationships = 0;
try {
for (CollectionRestorer r : _restorers) {
long collection = r.restoreCollection();
totalNodes += r.getCollectionSize();
_inserter.createRelationship(_inserter.getGraphDbService()
.getReferenceNode().getId(), collection,
RdmRelationship.CLASS_EXTENT, null);
}
for (ParentChildRelationshipBuilder r : _relators) {
r.makeRelationships();
totalRelationships += r.getRelations();
}
} finally {
_inserter.shutdown();
_log.info(Batch inserter shutdown. Created: + totalNodes +
nodes and
+ totalRelationships + relationships);
}
}
Any suggestions welcome.
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Re: [Neo4j] BatchInserter exhausting heap...?
you could use cache_type=weak
in the db properties
you can easily introspect java programs (heap) using jmap jconsole or visualvm
what version of neo4j are you using?
index.flush just sets a flag for immediate index querying
Sent from my iBrick4
Am 01.06.2011 um 19:18 schrieb Paul Bandler pband...@cseuk.co.uk:
I have a simple program that uses the BatchInserter to load rows from a SQL
database and am running it on a modestly configured Windows machine with 2GB
of RAM and setting the max heap to 500M.
Initially it was running out of memory quite soon so I introduced a flush
after every 5000 nodes and it appeared that all was well. But having got
further in the data load it appears to hop along nicely but the memory
allocated (simply visible using windows task manager) grows and grows until I
suspect it's reached its max heap size and it's written about 2M nodes then
abruptly stops making any further discernible progress. It doesn't fail,
just the logging I've put in to log every 5000 nodes has stopped and the CPU
is 100% used - garbage collecting I suspect.
Is there something I should be doing periodically in addition to theindex
flush to stop the heap exhaustion? My code is really simple, here's the
method for loading nodes from each table:-
public long restoreCollection() {
resolveSql();
_log.debug(restore collection: + getCollectionName() + using:
+ _sql + and: + Arrays.deepToString(_columns));
final BatchInserterIndex _index = makeIndex();
final long collectionNode = _inserter.createNode(MapUtil.map(name,
getCollectionName()));
_log.debug(Query db...);
getJdbcTemplate().query(_sql, new Object[] {},
new RowCallbackHandler() {
public void processRow(ResultSet row) throws SQLException {
final MapString, Object properties =
extractproperties(row);
long node = _inserter.createNode(properties);
_inserter.createRelationship(node, collectionNode,
RdmRelationship.MEMBER_OF, null);
if (_index != null)
for (DbColumn col : _columns) {
if (col.isIndexed())
_index.add(node, MapUtil.map(col.getName(),
properties.get(col.getName(;
}
_collectionSize++;
if ((_collectionSize % FLUSH_INTERVAL == 0)) {
if (_index != null)
_index.flush();
_log.debug(Added node: + _collectionSize
+ to: + getCollectionName());
}
}
});
// long collectionNode = -1;
if (_index != null) {
_index.flush();
}
_log.debug(Completed restoring + _collectionSize + to:
+ getCollectionName());
return collectionNode;
}
and then around that a higher level function that handles all tables:-
public void run() {
throwIfNull(_restorers, Restorers missing);
throwIfNull(_inserter, Batch inserter missing);
int totalNodes = 0;
int totalRelationships = 0;
try {
for (CollectionRestorer r : _restorers) {
long collection = r.restoreCollection();
totalNodes += r.getCollectionSize();
_inserter.createRelationship(_inserter.getGraphDbService()
.getReferenceNode().getId(), collection,
RdmRelationship.CLASS_EXTENT, null);
}
for (ParentChildRelationshipBuilder r : _relators) {
r.makeRelationships();
totalRelationships += r.getRelations();
}
} finally {
_inserter.shutdown();
_log.info(Batch inserter shutdown. Created: + totalNodes +
nodes and
+ totalRelationships + relationships);
}
}
Any suggestions welcome.
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Re: [Neo4j] BatchInserter exhausting heap...?
Is that simply set as a system property or via the Map passed as the second
parameter to the BatchInserterImpl constructor? I've tried both and doesn't
seem to help. Is there some way I can verify that it's being used?
I'm using 1.3
On 1 Jun 2011, at 18:49, Michael Hunger wrote:
you could use cache_type=weak
in the db properties
you can easily introspect java programs (heap) using jmap jconsole or visualvm
what version of neo4j are you using?
index.flush just sets a flag for immediate index querying
Sent from my iBrick4
Am 01.06.2011 um 19:18 schrieb Paul Bandler pband...@cseuk.co.uk:
I have a simple program that uses the BatchInserter to load rows from a SQL
database and am running it on a modestly configured Windows machine with 2GB
of RAM and setting the max heap to 500M.
Initially it was running out of memory quite soon so I introduced a flush
after every 5000 nodes and it appeared that all was well. But having got
further in the data load it appears to hop along nicely but the memory
allocated (simply visible using windows task manager) grows and grows until
I suspect it's reached its max heap size and it's written about 2M nodes
then abruptly stops making any further discernible progress. It doesn't
fail, just the logging I've put in to log every 5000 nodes has stopped and
the CPU is 100% used - garbage collecting I suspect.
Is there something I should be doing periodically in addition to the
index flush to stop the heap exhaustion? My code is really simple, here's
the method for loading nodes from each table:-
public long restoreCollection() {
resolveSql();
_log.debug(restore collection: + getCollectionName() + using:
+ _sql + and: + Arrays.deepToString(_columns));
final BatchInserterIndex _index = makeIndex();
final long collectionNode = _inserter.createNode(MapUtil.map(name,
getCollectionName()));
_log.debug(Query db...);
getJdbcTemplate().query(_sql, new Object[] {},
new RowCallbackHandler() {
public void processRow(ResultSet row) throws SQLException {
final MapString, Object properties =
extractproperties(row);
long node = _inserter.createNode(properties);
_inserter.createRelationship(node, collectionNode,
RdmRelationship.MEMBER_OF, null);
if (_index != null)
for (DbColumn col : _columns) {
if (col.isIndexed())
_index.add(node, MapUtil.map(col.getName(),
properties.get(col.getName(;
}
_collectionSize++;
if ((_collectionSize % FLUSH_INTERVAL == 0)) {
if (_index != null)
_index.flush();
_log.debug(Added node: + _collectionSize
+ to: + getCollectionName());
}
}
});
// long collectionNode = -1;
if (_index != null) {
_index.flush();
}
_log.debug(Completed restoring + _collectionSize + to:
+ getCollectionName());
return collectionNode;
}
and then around that a higher level function that handles all tables:-
public void run() {
throwIfNull(_restorers, Restorers missing);
throwIfNull(_inserter, Batch inserter missing);
int totalNodes = 0;
int totalRelationships = 0;
try {
for (CollectionRestorer r : _restorers) {
long collection = r.restoreCollection();
totalNodes += r.getCollectionSize();
_inserter.createRelationship(_inserter.getGraphDbService()
.getReferenceNode().getId(), collection,
RdmRelationship.CLASS_EXTENT, null);
}
for (ParentChildRelationshipBuilder r : _relators) {
r.makeRelationships();
totalRelationships += r.getRelations();
}
} finally {
_inserter.shutdown();
_log.info(Batch inserter shutdown. Created: + totalNodes +
nodes and
+ totalRelationships + relationships);
}
}
Any suggestions welcome.
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Re: [Neo4j] BatchInserter exhausting heap...?
props passed in to the batchinserter
look into messages log
you see the different gc behaviour
Michael
Sent from my iBrick4
Am 01.06.2011 um 20:44 schrieb Paul Bandler pband...@cseuk.co.uk:
Is that simply set as a system property or via the Map passed as the second
parameter to the BatchInserterImpl constructor? I've tried both and doesn't
seem to help. Is there some way I can verify that it's being used?
I'm using 1.3
On 1 Jun 2011, at 18:49, Michael Hunger wrote:
you could use cache_type=weak
in the db properties
you can easily introspect java programs (heap) using jmap jconsole or
visualvm
what version of neo4j are you using?
index.flush just sets a flag for immediate index querying
Sent from my iBrick4
Am 01.06.2011 um 19:18 schrieb Paul Bandler pband...@cseuk.co.uk:
I have a simple program that uses the BatchInserter to load rows from a SQL
database and am running it on a modestly configured Windows machine with
2GB of RAM and setting the max heap to 500M.
Initially it was running out of memory quite soon so I introduced a flush
after every 5000 nodes and it appeared that all was well. But having got
further in the data load it appears to hop along nicely but the memory
allocated (simply visible using windows task manager) grows and grows until
I suspect it's reached its max heap size and it's written about 2M nodes
then abruptly stops making any further discernible progress. It doesn't
fail, just the logging I've put in to log every 5000 nodes has stopped and
the CPU is 100% used - garbage collecting I suspect.
Is there something I should be doing periodically in addition to the
index flush to stop the heap exhaustion? My code is really simple, here's
the method for loading nodes from each table:-
public long restoreCollection() {
resolveSql();
_log.debug(restore collection: + getCollectionName() + using:
+ _sql + and: + Arrays.deepToString(_columns));
final BatchInserterIndex _index = makeIndex();
final long collectionNode = _inserter.createNode(MapUtil.map(name,
getCollectionName()));
_log.debug(Query db...);
getJdbcTemplate().query(_sql, new Object[] {},
new RowCallbackHandler() {
public void processRow(ResultSet row) throws SQLException {
final MapString, Object properties =
extractproperties(row);
long node = _inserter.createNode(properties);
_inserter.createRelationship(node, collectionNode,
RdmRelationship.MEMBER_OF, null);
if (_index != null)
for (DbColumn col : _columns) {
if (col.isIndexed())
_index.add(node, MapUtil.map(col.getName(),
properties.get(col.getName(;
}
_collectionSize++;
if ((_collectionSize % FLUSH_INTERVAL == 0)) {
if (_index != null)
_index.flush();
_log.debug(Added node: + _collectionSize
+ to: + getCollectionName());
}
}
});
// long collectionNode = -1;
if (_index != null) {
_index.flush();
}
_log.debug(Completed restoring + _collectionSize + to:
+ getCollectionName());
return collectionNode;
}
and then around that a higher level function that handles all tables:-
public void run() {
throwIfNull(_restorers, Restorers missing);
throwIfNull(_inserter, Batch inserter missing);
int totalNodes = 0;
int totalRelationships = 0;
try {
for (CollectionRestorer r : _restorers) {
long collection = r.restoreCollection();
totalNodes += r.getCollectionSize();
_inserter.createRelationship(_inserter.getGraphDbService()
.getReferenceNode().getId(), collection,
RdmRelationship.CLASS_EXTENT, null);
}
for (ParentChildRelationshipBuilder r : _relators) {
r.makeRelationships();
totalRelationships += r.getRelations();
}
} finally {
_inserter.shutdown();
_log.info(Batch inserter shutdown. Created: + totalNodes +
nodes and
+ totalRelationships + relationships);
}
}
Any suggestions welcome.
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[Neo4j] LuceneIndex IllegalArgumentException
Hello,
We have been consistently getting the following exception from neo4j index.
java.lang.IllegalArgumentException: Illegal Capacity: -11
at java.util.ArrayList.init(ArrayList.java:110)
at org.neo4j.index.impl.lucene.LuceneIndex.query(LuceneIndex.java:271)
at org.neo4j.index.impl.lucene.LuceneIndex.get(LuceneIndex.java:187)
at strategic.poc.NeoSearch.getNodes(NeoSearch.java:250)
Scenario:
We are trying to update Nodes by creating new relationships. Before we
create a new relationship, we find the existing node by key/value.
If we update less than say 20 nodes(ie, create one new relationship to each
node), there's no problem.
However if we update say 25 or 30 or 50 nodes, we get the above exceptions
when we try to lookup for a node based on key/value.
Here's the code which does the lookup in the index to find a node:
public IndexHits getNodes(String key, String value)
{
Index index = graphDb.index().forNodes( testIndex );
value = value.toLowerCase();
return index.get(key, value); // line# 250
}
we are using neo4j1.4-M02 binaries, standalone version.
By the way, we are able to create almost 5000 new nodes in one
transacwithout any problem. We dont do lookups when creating a new node.
It's only when updating it breaks.
Is something wrong with the way we are searching or is it a bug in
LuceneIndex?
Is there a workaround?
Thank you.
John
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[Neo4j] How to embed neo4j to OSGI env without spring?
Hi folks, I'm new to neo4j and I'm going to embed neo4j to my OSGI environment(without Spring) as a component, so I can keep a single instance of graph database and can make it available for all other bundles. Any ideas about how to implement this? Thank you very much. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
[Neo4j] Neo4j Gremlin plugin part of standard Neo4j Server
Tada,
the Neo4j Gremlin Plugin now included in the default server distro, making
things a lot easier :)
Thanks Marko and Saikat for the great work, please report back issues
everyone!
http://docs.neo4j.org/chunked/snapshot/gremlin-plugin.html
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter http://twitter.com/peterneubauer
http://www.neo4j.org - Your high performance graph database.
http://startupbootcamp.org/- Öresund - Innovation happens HERE.
http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
On Wed, Jun 1, 2011 at 12:27 PM, John Bale nos...@gmail.com wrote:
Works like a charm.
Maybe it would be helpful to others if the JSON part was mentioned in the
neo4j-gremlin-plugin github README.
On Wed, Jun 1, 2011 at 12:38 PM, Peter Neubauer
peter.neuba...@neotechnology.com wrote:
John,
you need to URL encode if you are sending complex scripts. Look at
https://github.com/neo4j/neo4j-gremlin-plugin/blob/master/src/test/java/org/neo4j/server/plugin/gremlin/GremlinPluginFunctionalTest.javafor
the URL encoded script. That will translate into
send-a-gremlin-script,-json-encoded.txt
send-a-gremlin-script,-url-encoded.txt
[~/code/neo/neo4j-gremlin-plugin/target/rest-api] $cat
send-a-gremlin-script,-json-encoded.txt
[[rest-api-send-a-gremlin-script,-json-encoded]]
=== Send a Gremlin Script, JSON encoded ===
_Example request_
* *+POST+* +
http://localhost:7474/db/data/ext/GremlinPlugin/graphdb/execute_script+
* *+Accept:+* +application/json+
* *+Content-Type:+* +application/json+
[source,javascript]
{script:i = g.v(4);i.outE.inV}
_Example response_
* *+200:+* +OK
* *+Content-Type:+* +application/json+
[source,javascript]
[ {
outgoing_relationships :
http://localhost:7474/db/data/node/3/relationships/out;,
data : {
name : you
},
traverse :
http://localhost:7474/db/data/node/3/traverse/{returnType}
,
all_typed_relationships :
http://localhost:7474/db/data/node/3/relationships/all/{-list||types},
property : http://localhost:7474/db/data/node/3/properties/{key};,
self : http://localhost:7474/db/data/node/3;,
properties : http://localhost:7474/db/data/node/3/properties;,
outgoing_typed_relationships :
http://localhost:7474/db/data/node/3/relationships/out/{-list||types},
incoming_relationships :
http://localhost:7474/db/data/node/3/relationships/in;,
extensions : {
FunctionalTestPlugin : {
connected_nodes :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/connected_nodes
,
pathToReference :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/pathToReference
,
getThisNodeOrById :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/getThisNodeOrById
,
createRelationships :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/createRelationships
,
getRelationshipsBetween :
http://localhost:7474/db/data/ext/FunctionalTestPlugin/node/3/getRelationshipsBetween
},
GraphCloner : {
clonedSubgraph :
http://localhost:7474/db/data/ext/GraphCloner/node/3/clonedSubgraph;
}
},
create_relationship :
http://localhost:7474/db/data/node/3/relationships;,
all_relationships :
http://localhost:7474/db/data/node/3/relationships/all;,
incoming_typed_relationships :
http://localhost:7474/db/data/node/3/relationships/in/{-list||types}
} ]
In the generated documentation. Doe that help?
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter http://twitter.com/peterneubauer
http://www.neo4j.org - Your high performance graph
database.
http://startupbootcamp.org/- Öresund - Innovation happens HERE.
http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
On Wed, Jun 1, 2011 at 11:27 AM, John Bale nos...@gmail.com wrote:
Peter,
I have thinks partially working.
sending: script=g.v(1); works perfectly
however sending: script=n=g.v(1); fails with
= javax.script.ScriptException: groovy.lang.MissingPropertyException:
No
such property: n for class: Script3
if I try sending: script=n=g.v(1); fails with
= org.codehaus.groovy.control.MultipleCompilationErrorsException:
startup
failed:\nScript6.groovy: 49: unexpected char: 0x @ line 49, column
3.\n
\n\n ^\n\n1 error\n
So the question is, how can I assign a variable?
On Tue, May 31, 2011 at 11:46 PM, Peter Neubauer
peter.neuba...@neotechnology.com wrote:
Now the files should be uploaded.
Have fun!
Cheers,
/peter neubauer
GTalk:
Re: [Neo4j] How to embed neo4j to OSGI env without spring?
Hey, The Neo4j libraries should be usable within OSGi, though we're a bit lax in keeping on top of that. The best approach would be to use one bundle to instantiate the database and advertise the reference as a service for use by other bundles. Cheers, Andreas On Jun 1, 2011, at 8:25 PM, Super Wang wrote: Hi folks, I'm new to neo4j and I'm going to embed neo4j to my OSGI environment(without Spring) as a component, so I can keep a single instance of graph database and can make it available for all other bundles. Any ideas about how to implement this? Thank you very much. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
