Hi,
I'm not quite sure which property files you're talking about. The
configuration passed to HighlyAvailableGraphDatabase comes from the map
specified as a constructor argument directly in the spring Context.
database.path, server.id, ha.server.port, and zookeeper.servers are set by
system properties when tomcat is started so for each server:
# VM1
export JAVA_OPTS="-Dserver.id=1 -Dha.server.port=6001
-Ddatabase.path=/home/ubuntu/db
-Dzookeeper.servers=zoo1:2181,zoo2:2181,zoo3:2181"
# VM2
export JAVA_OPTS="-Dserver.id=2 -Dha.server.port=6001
-Ddatabase.path=/home/ubuntu/db
-Dzookeeper.servers=zoo1:2181,zoo2:2181,zoo3:2181"
# VM3
export JAVA_OPTS="-Dserver.id=3 -Dha.server.port=6001
-Ddatabase.path=/home/ubuntu/db
-Dzookeeper.servers=zoo1:2181,zoo2:2181,zoo3:2181"
Written as a properties file, for one server, they would look like this:
ha.machine_id=1
ha.server=zoo1:6001
ha.zoo_keeper_servers=zoo1:2181,zoo2:2181,zoo3:2181
enable_remote_shell=port=1331
pull_interval=1
But looking at the sample code on the wiki, I'm just short cutting it a
bit by doing it in the Spring Context rather than parsing a properties
file in a main method? In terms of the zookeeper config, zoo.cfg looks
like this:
tickTime=2000
dataDir=/var/lib/zookeeper
clientPort=2181
initLimit=5
syncLimit=2
server.1=zoo1:2888:3888
server.2=zoo2:2888:3888
server.3=zoo3:2888:3888
Should I be including some other config?
Thanks,
Toby.
On 28/09/2011 15:53, "Michael Hunger" <michael.hun...@neotechnology.com>
wrote:
>Could you also share the property files of the 3 vm's ?
>
>Thanks
>
>Michael
>
>Am 28.09.2011 um 15:59 schrieb Toby O'Rourke:
>
>> Hi,
>>
>> I'm trying to do a POC using neo4j and spring-data-graph. I have
>>configured 3 VMs running zookeeper and deployed a simple webapp to
>>tomcat on each instance. I've run into a bit of a problem with
>>replication though. I can only see data being replicated when I restart
>>each tomcat instance which is obviously no good.
>>
>> I have the following in my application context:
>>
>> <bean id="graphDatabaseService"
>>class="org.neo4j.kernel.HighlyAvailableGraphDatabase"
>>destroy-method="shutdown"
>> scope="singleton">
>> <constructor-arg index="0" value="${database.path}"/>
>> <constructor-arg index="1">
>> <map>
>> <entry key="ha.machine_id" value="${server.id}" />
>> <entry key="ha.server" value="zoo1:${ha.server.port}" />
>> <entry key="ha.zoo_keeper_servers"
>>value="${zookeeper.servers}" />
>> <entry key="enable_remote_shell" value="port=1331" />
>> <entry key="pull_interval" value="1" />
>> </map>
>> </constructor-arg>
>> </bean>
>>
>> I am starting "zoo1" first so that it becomes the master. Server.id is
>>allocated at runtime from a system property set on each machine
>>Dserver.id=x in the tomcat startup script. From what I understand the
>>pull_interval=1 setting means that data should be synchronized once per
>>second, yet I am only seeing it happen when the servers are bounced. Am
>>I missing something?
>>
>> Thanks,
>>
>> Toby.
>>
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>
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