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PONeo4j HA (embedded) via Spring?
 

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  1. PONeo4j HA (embedded) via Spring?
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    <p>Using 1.8.2 -- trying to set up (initially) a 2-node HA cluster.</p> <p>Following section "22.5.4. Start Neo4j Embedded in HA mode" of</p> <p><a href="http://docs.neo4j.org/chunked/stable/ha-setup-tutorial.html" rel="nofollow">http://docs.neo4j.org/chunked/stable/ha-setup-tutorial.html</a></p> <p>I have added the following to my pom.xml:</p> <pre><code>&lt;dependency&gt; &lt;groupId&gt;org.neo4j&lt;/groupId&gt; &lt;artifactId&gt;neo4j-ha&lt;/artifactId&gt; &lt;version&gt;${neo4j-version}&lt;/version&gt; &lt;/dependency&gt; </code></pre> <p>and modified my application-content.xml to the following:</p> <pre><code>&lt;neo4j:config graphDatabaseService="graphDatabaseService" /&gt; &lt;context:property-placeholder location="file:/etc/whiteRabbit.properties" /&gt; &lt;bean id="graphDatabaseService" class="org.neo4j.kernel.HighlyAvailableGraphDatabase" destroy-method="shutdown" scope="singleton"&gt; &lt;constructor-arg index="0" value="${database.path}" /&gt; &lt;constructor-arg index="1"&gt; &lt;map&gt; &lt;entry key="ha.server_id" value="${server.id}"&gt;&lt;/entry&gt; &lt;entry key="ha.server" value="${ha.server.address}:${ha.server.port}"&gt;&lt;/entry&gt; &lt;entry key="ha.coordinators" value="${coordinators}"&gt;&lt;/entry&gt; &lt;entry key="enable_remote_shell" value="port=1331"&gt;&lt;/entry&gt; &lt;entry key="ha.pull_interval" value="1"&gt;&lt;/entry&gt; &lt;/map&gt; &lt;/constructor-arg&gt; &lt;/bean&gt; </code></pre> <p>and</p> <p>/etc/whiteRabbit.properties contains:</p> <p>node 1 (address: 192.168.1.68)</p> <pre><code>server.id=1 ha.server.address=localhost ha.server.port=6001 database.path=/databases/data/graph.db coordinators=localhost:2181,192.168.1.100:2181 </code></pre> <p>and node 2 (address 192.168.1.100) </p> <pre><code>server.id=2 ha.server.address=localhost ha.server.port=6001 database.path=/databases/data/graph.db coordinators=localhost:2181,192.168.1.68:2181 </code></pre> <p>When I start up each instance, I get the normal startup logs, then</p> <pre><code>14:57:58.171 [localhost-startStop-1] INFO neo4j - WARNING! Deprecated configuration options used. See manual for details 14:57:58.171 [localhost-startStop-1] INFO neo4j - neo4j.ext.udc.disable has been replaced with neo4j.ext.udc.enabled 14:57:58.171 [localhost-startStop-1] INFO neo4j - cannot configure writers and searchers individually since they go together </code></pre> <p>(only the first two of those sem to relate to the change to HA)</p> <p>then.. nothing.... (!)</p> <p>Startup simply stops there. Given that the setup configuration for standalone servers in the page noted above mentions starting the coordinator instances as a separate part fo the process, is that something I need to do manually here? Or should that just take care of itself? How do I find logging info to start working out why I'm just seeing the nodes hang? BTW behaviour is no different if I start up just a single node -- same hang, same place in the logs...</p> <p>Im guessing I'm missing something simple?</p> <p>D</p>
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