*Update* To have max. consistency, I've replaced a previous Centos instance with a Debian-based, i.e. now I have 2 identical Debian instances.
neo4j service is launching on the second one, however its debug log is filled with 2016-05-17 15:25:29.651+0000 ERROR [o.n.k.h.c.m.HighAvailabilityModeSwitcher] Error while trying to switch to slave MasterClient214 could not connect from /172.31.42.94:0 to /127.0.0.1:6001 org.neo4j.com.ComException: MasterClient214 could not connect from /172.31.42.94:0 to /127.0.0.1:6001 at org.neo4j.com.Client$2.create(Client.java:225) at org.neo4j.com.Client$2.create(Client.java:202) at org.neo4j.com.ResourcePool.acquire(ResourcePool.java:177) at org.neo4j.com.Client.acquireChannelContext(Client.java:390) at org.neo4j.com.Client.sendRequest(Client.java:296) at org.neo4j.kernel.ha.MasterClient210.handshake(MasterClient210.java:288) at org.neo4j.kernel.ha.cluster.SwitchToSlave.checkDataConsistencyWithMaster(SwitchToSlave.java:597) at org.neo4j.kernel.ha.cluster.SwitchToSlave.checkDataConsistency(SwitchToSlave.java:392) at org.neo4j.kernel.ha.cluster.SwitchToSlave.executeConsistencyChecks(SwitchToSlave.java:376) at org.neo4j.kernel.ha.cluster.SwitchToSlave.switchToSlave(SwitchToSlave.java:293) at org.neo4j.kernel.ha.cluster.modeswitch.HighAvailabilityModeSwitcher$1.run(HighAvailabilityModeSwitcher.java:348) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) at org.neo4j.helpers.NamedThreadFactory$2.run(NamedThreadFactory.java:104) Caused by: java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.jboss.netty.channel.socket.nio.NioClientBoss.connect(NioClientBoss.java:148) at org.jboss.netty.channel.socket.nio.NioClientBoss.processSelectedKeys(NioClientBoss.java:104) at org.jboss.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:78) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312) at org.jboss.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:41) ... 4 more 2016-05-17 15:25:29.651+0000 INFO [o.n.k.h.c.m.HighAvailabilityModeSwitcher] Attempting to switch to slave in 15s -- You received this message because you are subscribed to the Google Groups "Neo4j" group. To unsubscribe from this group and stop receiving emails from it, send an email to neo4j+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.