Hi,
I am trying to configure Neo4J High availability. But I am getting some
exceptions. The following are the configuration details.
We have 3 Linux servers (Amazon cloud instances).
Each one has Zookeeper 3.3.2 and Jetty 7. Deployed web application in Jetty by
giving corresponding
Madan,
just talked to Mattias on this. Zookeeper is a strange beast and
casting exceptions often - what is the actual effect you are seeing -
is the cluster not starting up or are there multiple masters?
Cheers,
/peter neubauer
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Yes, that was my understanding too (probably because of other embedded dbs
like JavaDB etc). But from the responses of Jim and others it looks like
Neo4j can handle multiple connections. That's great and NOW HA in embedded
makes sense :)
On Fri, Mar 25, 2011 at 1:26 PM, Clement Honore
If I've well understood, you can have only one connection to the database
for each VM. So, the service must be encapsulated in a singleton I guess.
How many transactions each connection can handle ?
2011/3/25 Guru GV guru...@gmail.com
Though I don't see a reason not to support it, but I did
Hi folks,
Embedded simply means running in your choice of JVM process. Most embedded
Neo4j instances aren't embedded in the hardware sense of embedded systems,
they're usually server applications that happen to use Neo4j as their database
(sensible choice!).
So imagine I have a Web app set to
Also, that brings me to another question - is the Embedded version of Neo4j
concurrent for multiple threads ? Meaning can it have multiple simultaneous
connections/transactions ongoing ?
The embedded version of neo4j typically works *better* when there are multiple
threads interacting with
2011/3/25 Guru GV guru...@gmail.com
Though I don't see a reason not to support it, but I did not understand the
point of HA in a embedded mode. Would be interested in hearing couple of
examples of what that would be...
Embedded would mean - same VM - so replication and concurrency - do they
Hi,
I'm new to Neo4J and I'm a little bit confused (maybe totally lost...) about
the use of the Neo4J server against an embedded database in high
availability mode...
I need a database with high availability, replication and high concurrency
management accessed as a remote server.
If I have well
Hi Kiiv,
Both the embedded database *and* the server database can run in HA mode.
We tend to think of the server as simply a wrapper around the database that
provides a RESTful API to augment the local API.
So go right ahead and pick the configuration that's right for you, and you'll
be able
Hi Jim,
thanks for your answer.
So the Neo4J server and REST API are principaly interesting for non
supported langages but with Java you confirm that the embedded database in
high availability mode act like a standalone server.
Nice ;)
Kiiv
2011/3/24 Jim Webber j...@neotechnology.com
Hi
Though I don't see a reason not to support it, but I did not understand the
point of HA in a embedded mode. Would be interested in hearing couple of
examples of what that would be...
Embedded would mean - same VM - so replication and concurrency - do they
really mean much here ?
Also, that
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