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POTroubles while running neo4j & rails in HA (part 2)
 

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  1. POTroubles while running neo4j & rails in HA (part 2)
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    <p>I have configured an HA cluster with 3 nodes. The first is a Rails server, the second a Rail console, and the last a Neo4j server</p> <p>I started the Rails s and the Rails c, then I started the other instance, with the error below.</p> <p>Here is the config for the three machines:</p> <p>Rails server and console: </p> <hr> <p>module Neo4j</p> <pre><code> module Rails module HaConsole class Railtie &lt; Object::Rails::Railtie console do Neo4j.config.use do |conf| server_id = 2 conf['ha.server_id'] = server_id conf['ha.server'] = "localhost:600#{server_id}" conf['ha.cluster_server'] = "localhost:500#{server_id}" conf['storage_path'] = File.expand_path("db/ha_neo_#{server_id}", Object::Rails.root) puts "Re-Config HA cluster, ha.server_id: #{conf['ha.server_id']}, db: #{conf['storage_path']}" end end config.before_configuration do server_id = 1 config.neo4j['enable_ha'] = true config.neo4j['ha.server_id'] = server_id config.neo4j['ha.server'] = "localhost:600#{server_id}" config.neo4j['ha.pull_interval'] = '500ms' config.neo4j['ha.discovery.enabled'] = false config.neo4j['ha.initial_hosts'] = [1,2,3].map{|id| "localhost:500#{id}"}.join(',') config.neo4j['ha.cluster_server'] = "localhost:500#{server_id}" config.neo4j.storage_path = File.expand_path("db/ha_neo_#{server_id}", Object::Rails.root) puts "Config HA cluster, ha.server_id: #{config.neo4j['ha.server_id']}, db: #{config.neo4j.storage_path}" end end end end end </code></pre> <hr> <p>the latter is: </p> <pre><code>online_backup_enabled=true online_backup_server=localhost:6362 ha.server_id=3 ha.initial_hosts=localhost:5001,localhost:5002,localhost:5003 ha.server=localhost:6003 ha.cluster_server=localhost:5003 ha.pull_interval=1 </code></pre> <hr> <p>There is also a timeout from the server (id=3), and, when the port 7474 became available, ther is no sync with the other 2 cluster elements. Moreover, a red banner sometimes appera on top of the 7474 console, sayng 'Lost connection with Neo4j. Please check the plug".</p> <p>Has anyone an idea?</p> <p>Paolo</p> <hr> <p>2013-11-21 23:48:57.473+0000 INFO [Cluster] Attempting to join cluster of [127.0.0.1:5001, 127.0.0.1:5002, 127.0.0.1:5003] 2013-11-21 23:49:02.568+0000 INFO [Cluster] Joined cluster:Name:neo4j.ha Nodes:{1=cluster://127.0.0.1:5001, 3=cluster://127.0.0.1:5003} Roles:{coordinator=1} 2013-11-21 23:49:02.582+0000 INFO [Cluster] Instance 3 (this server) joined the cluster 2013-11-21 23:49:06.845+0000 INFO [Cluster] Instance 1 was elected as coordinator java.io.EOFException at java.io.ObjectInputStream$BlockDataInputStream.peekByte(ObjectInputStream.java:2598) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1318) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at org.neo4j.cluster.member.paxos.PaxosClusterMemberEvents$HighAvailabilitySnapshotProvider.setState(PaxosClusterMemberEvents.java:179) at org.neo4j.cluster.protocol.snapshot.SnapshotMessage$SnapshotState.setState(SnapshotMessage.java:91) at org.neo4j.cluster.protocol.snapshot.SnapshotState$2.handle(SnapshotState.java:105) at org.neo4j.cluster.protocol.snapshot.SnapshotState$2.handle(SnapshotState.java:89) at org.neo4j.cluster.statemachine.StateMachine.handle(StateMachine.java:88) at org.neo4j.cluster.StateMachines$1.run(StateMachines.java:135) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744)</p>
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    1. PTQuestion
    1. This table or related slice is empty.
    1. USPaolo Di Pietro
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    1. COWhich Neo4j version is this?
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      1. POTroubles while running neo4j & rails in HA (part 2)
      1. USMichael Hunger
    2. COAnd shouldn't the rails console be configured similarly to the other two?
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      1. POTroubles while running neo4j & rails in HA (part 2)
      1. USMichael Hunger
    3. COLooks like its related to this github issue: https://github.com/andreasronge/neo4j/issues/287#issuecomment-29141291
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      1. POTroubles while running neo4j & rails in HA (part 2)
      1. USAndreas Ronge
 

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