How does tcp discovery work?

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chefho...@gmail.com

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Feb 9, 2018, 7:35:42 PM2/9/18
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I am running hazelcast embedded in a vert.x app, trying to use tcp join to form a cluster in a cloud foundry environment that supports container networking and has app service discovery support via dynamic DNS. DNS entries for new app instances are created (I believe) once an app instance has successfully started. See here for a description of its use: https://github.com/cloudfoundry/cf-app-sd-release#app-developer-experience

The problem is I can't get any two nodes to join the same cluster.

I run one app on host 0.<app-id>.apps.internal and configure its hazelcast tcp-ip entry with three member host names:
1.<app-id>.apps.internal, 2.<app-id>.apps.internal, 3.<app-id>.apps.internal
Initially, when this app starts up, none of the host names above will resolve (because there aren't DNS entries for them yet).
It starts up successfully, with itself as the only member of its cluster.
After it completes startup, there is a DNS entry created for 0.<app-id>.apps.internal.

Another instance of the same app is started on 1.<app-id>.apps.internal (prior to registering its DNS entry), and this new instance is configured with a different list of members:
0.<app-id>.apps.internal, 2.<app-id>.apps.internal, 3.<app-id>.apps.internal
This instance successfully resolves and connects to the instance running on 0.<app-id>.apps.internal.
The logs in both apps show that they have successfully established a connection.
There are no errors or rejected connections logged for either app.

But, after about 5 seconds, this second instance starts its cluster and only shows itself in the list of members.

What is going on here? Do *all* of the configured members have to be present and communicating before all the members join the same cluster?

Below is what the logs from the second instance looks like:

2018-02-10 00:07:04.270+0000 [] [vert.x-worker-thread-0] WARN  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.69]:5701 [nimbus] [3.8.2] Cannot resolve hostname '3.16a0664c-01b0-4bfa-87e4-2503b60e76c2.apps.internal'. Please make sure host is valid and reachable. 
2018-02-10 00:07:04.271+0000 [] [vert.x-worker-thread-0] WARN  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.69]:5701 [nimbus] [3.8.2] Cannot resolve hostname '2.16a0664c-01b0-4bfa-87e4-2503b60e76c2.apps.internal'. Please make sure host is valid and reachable. 
2018-02-10 00:07:04.279+0000 [] [hz._hzInstance_1_nimbus.cached.thread-3] INFO  c.h.nio.tcp.InitConnectionTask - [10.255.190.69]:5701 [nimbus] [3.8.2] Connecting to 0.16a0664c-01b0-4bfa-87e4-2503b60e76c2.apps.internal/10.255.197.248:5701, timeout: 0, bind-any: false 
2018-02-10 00:07:04.284+0000 [] [hz._hzInstance_1_nimbus.cached.thread-3] INFO  c.h.nio.tcp.TcpIpConnectionManager - [10.255.190.69]:5701 [nimbus] [3.8.2] Established socket connection between /10.255.190.69:36102 and 0.16a0664c-01b0-4bfa-87e4-2503b60e76c2.apps.internal/10.255.197.248:5701 
2018-02-10 00:07:09.279+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.system - [10.255.190.69]:5701 [nimbus] [3.8.2] Cluster version set to 3.8 
2018-02-10 00:07:09.280+0000 [] [vert.x-worker-thread-0] INFO  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.69]:5701 [nimbus] [3.8.2] 


Members [1] {
Member [10.255.190.69]:5701 - 81a8da4d-aae6-4e24-a16e-cba570118a9e this
}
 



Alparslan Avcı

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Feb 10, 2018, 6:36:38 PM2/10/18
to Hazelcast
Hello,

Can you please share the all (from start to end) DEBUG level logs for both of the instances?

Regards,
Alparslan

chefho...@gmail.com

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Feb 12, 2018, 9:16:25 AM2/12/18
to Hazelcast
Here is the DEBUG log from the 2nd started instance:


2018-02-12 13:09:57.788+0000 [] [vert.x-worker-thread-0] WARN  c.h.instance.DefaultAddressPicker - [LOCAL] [nimbus] [3.8.2] Cannot resolve hostname: '3.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal' 
2018-02-12 13:09:57.793+0000 [] [vert.x-worker-thread-0] WARN  c.h.instance.DefaultAddressPicker - [LOCAL] [nimbus] [3.8.2] Cannot resolve hostname: '2.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal' 
2018-02-12 13:09:57.794+0000 [] [vert.x-worker-thread-0] WARN  c.h.instance.DefaultAddressPicker - [LOCAL] [nimbus] [3.8.2] You configured your member address as host name. Please be aware of that your dns can be spoofed. Make sure that your dns configurations are correct. 
2018-02-12 13:09:57.795+0000 [] [vert.x-worker-thread-0] INFO  c.h.instance.DefaultAddressPicker - [LOCAL] [nimbus] [3.8.2] Resolving domain name '0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal' to address(es): [10.255.190.128] 
2018-02-12 13:09:57.795+0000 [] [vert.x-worker-thread-0] INFO  c.h.instance.DefaultAddressPicker - [LOCAL] [nimbus] [3.8.2] Interfaces is disabled, trying to pick one address from TCP-IP config addresses: [10.255.98.168, 0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal/10.255.190.128
2018-02-12 13:09:57.795+0000 [] [vert.x-worker-thread-0] INFO  c.h.instance.DefaultAddressPicker - [LOCAL] [nimbus] [3.8.2] Prefer IPv4 stack is true. 
2018-02-12 13:09:57.798+0000 [] [vert.x-worker-thread-0] INFO  c.h.instance.DefaultAddressPicker - [LOCAL] [nimbus] [3.8.2] Picked [10.255.98.168]:5701, using socket ServerSocket[addr=/10.255.98.168,localport=5701], bind any local is false 
2018-02-12 13:09:57.805+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.system - [10.255.98.168]:5701 [nimbus] [3.8.2] Hazelcast 3.8.2 (20170518 - a60f944) starting at [10.255.98.168]:5701 
2018-02-12 13:09:57.805+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.system - [10.255.98.168]:5701 [nimbus] [3.8.2] Copyright (c) 2008-2016, Hazelcast, Inc. All Rights Reserved. 
2018-02-12 13:09:57.805+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.system - [10.255.98.168]:5701 [nimbus] [3.8.2] Configured Hazelcast Serialization version : 1 
2018-02-12 13:09:57.952+0000 [] [vert.x-worker-thread-0] INFO  c.h.s.i.o.impl.BackpressureRegulator - [10.255.98.168]:5701 [nimbus] [3.8.2] Backpressure is disabled 
2018-02-12 13:09:58.255+0000 [] [vert.x-worker-thread-0] DEBUG c.h.internal.cluster.ClusterService - [10.255.98.168]:5701 [nimbus] [3.8.2] Updating members [Member [10.255.98.168]:5701 - dae3e9bf-1299-4239-a73d-3ffee33d4dbb this] 
2018-02-12 13:09:58.272+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.instance.Node - [10.255.98.168]:5701 [nimbus] [3.8.2] Creating TcpIpJoiner 
2018-02-12 13:09:58.440+0000 [] [vert.x-worker-thread-0] INFO  c.h.s.i.o.impl.OperationExecutorImpl - [10.255.98.168]:5701 [nimbus] [3.8.2] Starting 4 partition threads 
2018-02-12 13:09:58.440+0000 [] [vert.x-worker-thread-0] INFO  c.h.s.i.o.impl.OperationExecutorImpl - [10.255.98.168]:5701 [nimbus] [3.8.2] Starting 3 generic threads (1 dedicated for priority tasks) 
2018-02-12 13:09:58.444+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.core.LifecycleService - [10.255.98.168]:5701 [nimbus] [3.8.2] [10.255.98.168]:5701 is STARTING 
2018-02-12 13:09:58.445+0000 [] [vert.x-worker-thread-0] DEBUG c.h.i.p.InternalPartitionService - [10.255.98.168]:5701 [nimbus] [3.8.2] Adding Member [10.255.98.168]:5701 - dae3e9bf-1299-4239-a73d-3ffee33d4dbb this 
2018-02-12 13:09:58.446+0000 [] [vert.x-worker-thread-0] DEBUG c.h.i.n.n.NonBlockingIOThreadingModel - [10.255.98.168]:5701 [nimbus] [3.8.2] TcpIpConnectionManager configured with Non Blocking IO-threading model: 3 input threads and 3 output threads 
2018-02-12 13:09:58.446+0000 [] [vert.x-worker-thread-0] DEBUG c.h.i.n.n.NonBlockingIOThreadingModel - [10.255.98.168]:5701 [nimbus] [3.8.2] IO threads selector mode is SELECT 
2018-02-12 13:09:58.452+0000 [] [vert.x-worker-thread-0] WARN  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Cannot resolve hostname '3.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal'. Please make sure host is valid and reachable. 
2018-02-12 13:09:58.454+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Error during resolving possible target! 
java.net.UnknownHostException: 3.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal
at java.net.InetAddress.getAllByName0(InetAddress.java:1280) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1192) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1126) ~[na:1.8.0_152]
at java.net.InetAddress.getByName(InetAddress.java:1076) ~[na:1.8.0_152]
at com.hazelcast.nio.Address.<init>(Address.java:54) ~[hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.addPossibleAddresses(TcpIpJoiner.java:466) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.getPossibleAddresses(TcpIpJoiner.java:440) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.joinViaPossibleMembers(TcpIpJoiner.java:134) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.doJoin(TcpIpJoiner.java:93) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.internal.cluster.impl.AbstractJoiner.join(AbstractJoiner.java:135) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.Node.join(Node.java:702) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.Node.start(Node.java:393) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceImpl.<init>(HazelcastInstanceImpl.java:132) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.constructHazelcastInstance(HazelcastInstanceFactory.java:218) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.newHazelcastInstance(HazelcastInstanceFactory.java:176) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.newHazelcastInstance(HazelcastInstanceFactory.java:126) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.core.Hazelcast.newHazelcastInstance(Hazelcast.java:58) [hazelcast-3.8.2.jar:3.8.2]
at io.vertx.spi.cluster.hazelcast.HazelcastClusterManager.lambda$join$0(HazelcastClusterManager.java:161) [vertx-hazelcast-3.4.1.jar:na]
at io.vertx.core.impl.ContextImpl.lambda$executeBlocking$1(ContextImpl.java:271) ~[vertx-core-3.4.1.jar:na]
at io.vertx.core.impl.TaskQueue.lambda$new$0(TaskQueue.java:60) ~[vertx-core-3.4.1.jar:na]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_152]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_152]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_152]
2018-02-12 13:09:58.455+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] [10.255.98.168]:5701 is local? true 
2018-02-12 13:09:58.455+0000 [] [vert.x-worker-thread-0] WARN  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Cannot resolve hostname '2.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal'. Please make sure host is valid and reachable. 
2018-02-12 13:09:58.455+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Error during resolving possible target! 
java.net.UnknownHostException: 2.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal
at java.net.InetAddress.getAllByName0(InetAddress.java:1280) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1192) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1126) ~[na:1.8.0_152]
at java.net.InetAddress.getByName(InetAddress.java:1076) ~[na:1.8.0_152]
at com.hazelcast.nio.Address.<init>(Address.java:54) ~[hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.addPossibleAddresses(TcpIpJoiner.java:466) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.getPossibleAddresses(TcpIpJoiner.java:440) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.joinViaPossibleMembers(TcpIpJoiner.java:134) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.doJoin(TcpIpJoiner.java:93) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.internal.cluster.impl.AbstractJoiner.join(AbstractJoiner.java:135) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.Node.join(Node.java:702) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.Node.start(Node.java:393) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceImpl.<init>(HazelcastInstanceImpl.java:132) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.constructHazelcastInstance(HazelcastInstanceFactory.java:218) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.newHazelcastInstance(HazelcastInstanceFactory.java:176) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.newHazelcastInstance(HazelcastInstanceFactory.java:126) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.core.Hazelcast.newHazelcastInstance(Hazelcast.java:58) [hazelcast-3.8.2.jar:3.8.2]
at io.vertx.spi.cluster.hazelcast.HazelcastClusterManager.lambda$join$0(HazelcastClusterManager.java:161) [vertx-hazelcast-3.4.1.jar:na]
at io.vertx.core.impl.ContextImpl.lambda$executeBlocking$1(ContextImpl.java:271) ~[vertx-core-3.4.1.jar:na]
at io.vertx.core.impl.TaskQueue.lambda$new$0(TaskQueue.java:60) ~[vertx-core-3.4.1.jar:na]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_152]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_152]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_152]
2018-02-12 13:09:58.455+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] [0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701 is local? false 
2018-02-12 13:09:58.455+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Will send master question to each address in: [[0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701] 
2018-02-12 13:09:58.456+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] NOT sending master question to blacklisted endpoints: {} 
2018-02-12 13:09:58.456+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Sending master question to [0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701 
2018-02-12 13:09:58.466+0000 [] [hz._hzInstance_1_nimbus.cached.thread-3] INFO  c.h.nio.tcp.InitConnectionTask - [10.255.98.168]:5701 [nimbus] [3.8.2] Connecting to 0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal/10.255.190.128:5701, timeout: 0, bind-any: false 
2018-02-12 13:09:58.470+0000 [] [hz._hzInstance_1_nimbus.cached.thread-3] INFO  c.h.nio.tcp.TcpIpConnectionManager - [10.255.98.168]:5701 [nimbus] [3.8.2] Established socket connection between /10.255.98.168:37853 and 0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal/10.255.190.128:5701 
2018-02-12 13:09:58.474+0000 [] [hz._hzInstance_1_nimbus.IO.thread-out-0] DEBUG c.h.n.t.SocketWriterInitializerImpl - [10.255.98.168]:5701 [nimbus] [3.8.2] Initializing SocketWriter WriteHandler with Cluster Protocol 
2018-02-12 13:09:59.462+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Will send master question to each address in: [[0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701] 
2018-02-12 13:09:59.463+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] NOT sending master question to blacklisted endpoints: {} 
2018-02-12 13:09:59.463+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Sending master question to [0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701 
2018-02-12 13:10:00.463+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Will send master question to each address in: [[0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701] 
2018-02-12 13:10:00.463+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] NOT sending master question to blacklisted endpoints: {} 
2018-02-12 13:10:00.464+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Sending master question to [0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701 
2018-02-12 13:10:01.464+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Will send master question to each address in: [[0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701] 
2018-02-12 13:10:01.464+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] NOT sending master question to blacklisted endpoints: {} 
2018-02-12 13:10:01.464+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Sending master question to [0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701 
2018-02-12 13:10:02.465+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Will send master question to each address in: [[0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701] 
2018-02-12 13:10:02.465+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] NOT sending master question to blacklisted endpoints: {} 
2018-02-12 13:10:02.465+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] Sending master question to [0.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701 
2018-02-12 13:10:03.465+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] This node will assume master role since no possible member where connected to. 
2018-02-12 13:10:03.466+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.system - [10.255.98.168]:5701 [nimbus] [3.8.2] Cluster version set to 3.8 
2018-02-12 13:10:03.466+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] PostJoin master: [10.255.98.168]:5701, isMaster: true 
2018-02-12 13:10:03.466+0000 [] [vert.x-worker-thread-0] INFO  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.98.168]:5701 [nimbus] [3.8.2] 


Members [1] {
Member [10.255.98.168]:5701 - dae3e9bf-1299-4239-a73d-3ffee33d4dbb this
}
 





...and here is the DEBUG log from the 1st started instance:

2018-02-12 13:10:14.754+0000 [] [vert.x-worker-thread-0] WARN  c.h.instance.DefaultAddressPicker - [LOCAL] [nimbus] [3.8.2] Cannot resolve hostname: '3.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal' 
2018-02-12 13:10:14.758+0000 [] [vert.x-worker-thread-0] WARN  c.h.instance.DefaultAddressPicker - [LOCAL] [nimbus] [3.8.2] Cannot resolve hostname: '1.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal' 
2018-02-12 13:10:14.761+0000 [] [vert.x-worker-thread-0] WARN  c.h.instance.DefaultAddressPicker - [LOCAL] [nimbus] [3.8.2] Cannot resolve hostname: '2.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal' 
2018-02-12 13:10:14.762+0000 [] [vert.x-worker-thread-0] INFO  c.h.instance.DefaultAddressPicker - [LOCAL] [nimbus] [3.8.2] Interfaces is disabled, trying to pick one address from TCP-IP config addresses: [10.255.190.128] 
2018-02-12 13:10:14.762+0000 [] [vert.x-worker-thread-0] INFO  c.h.instance.DefaultAddressPicker - [LOCAL] [nimbus] [3.8.2] Prefer IPv4 stack is true. 
2018-02-12 13:10:14.767+0000 [] [vert.x-worker-thread-0] INFO  c.h.instance.DefaultAddressPicker - [LOCAL] [nimbus] [3.8.2] Picked [10.255.190.128]:5701, using socket ServerSocket[addr=/10.255.190.128,localport=5701], bind any local is false 
2018-02-12 13:10:14.775+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.system - [10.255.190.128]:5701 [nimbus] [3.8.2] Hazelcast 3.8.2 (20170518 - a60f944) starting at [10.255.190.128]:5701 
2018-02-12 13:10:14.775+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.system - [10.255.190.128]:5701 [nimbus] [3.8.2] Copyright (c) 2008-2016, Hazelcast, Inc. All Rights Reserved. 
2018-02-12 13:10:14.775+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.system - [10.255.190.128]:5701 [nimbus] [3.8.2] Configured Hazelcast Serialization version : 1 
2018-02-12 13:10:14.925+0000 [] [vert.x-worker-thread-0] INFO  c.h.s.i.o.impl.BackpressureRegulator - [10.255.190.128]:5701 [nimbus] [3.8.2] Backpressure is disabled 
2018-02-12 13:10:15.228+0000 [] [vert.x-worker-thread-0] DEBUG c.h.internal.cluster.ClusterService - [10.255.190.128]:5701 [nimbus] [3.8.2] Updating members [Member [10.255.190.128]:5701 - 2b5c8d88-9db4-4405-bc9b-b40bef62d12d this] 
2018-02-12 13:10:15.245+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.instance.Node - [10.255.190.128]:5701 [nimbus] [3.8.2] Creating TcpIpJoiner 
2018-02-12 13:10:15.397+0000 [] [vert.x-worker-thread-0] INFO  c.h.s.i.o.impl.OperationExecutorImpl - [10.255.190.128]:5701 [nimbus] [3.8.2] Starting 4 partition threads 
2018-02-12 13:10:15.397+0000 [] [vert.x-worker-thread-0] INFO  c.h.s.i.o.impl.OperationExecutorImpl - [10.255.190.128]:5701 [nimbus] [3.8.2] Starting 3 generic threads (1 dedicated for priority tasks) 
2018-02-12 13:10:15.401+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.core.LifecycleService - [10.255.190.128]:5701 [nimbus] [3.8.2] [10.255.190.128]:5701 is STARTING 
2018-02-12 13:10:15.401+0000 [] [vert.x-worker-thread-0] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Adding Member [10.255.190.128]:5701 - 2b5c8d88-9db4-4405-bc9b-b40bef62d12d this 
2018-02-12 13:10:15.407+0000 [] [vert.x-worker-thread-0] DEBUG c.h.i.n.n.NonBlockingIOThreadingModel - [10.255.190.128]:5701 [nimbus] [3.8.2] TcpIpConnectionManager configured with Non Blocking IO-threading model: 3 input threads and 3 output threads 
2018-02-12 13:10:15.408+0000 [] [vert.x-worker-thread-0] DEBUG c.h.i.n.n.NonBlockingIOThreadingModel - [10.255.190.128]:5701 [nimbus] [3.8.2] IO threads selector mode is SELECT 
2018-02-12 13:10:15.414+0000 [] [vert.x-worker-thread-0] WARN  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Cannot resolve hostname '3.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal'. Please make sure host is valid and reachable. 
2018-02-12 13:10:15.418+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Error during resolving possible target! 
java.net.UnknownHostException: 3.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal
at java.net.InetAddress.getAllByName0(InetAddress.java:1280) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1192) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1126) ~[na:1.8.0_152]
at java.net.InetAddress.getByName(InetAddress.java:1076) ~[na:1.8.0_152]
at com.hazelcast.nio.Address.<init>(Address.java:54) ~[hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.addPossibleAddresses(TcpIpJoiner.java:466) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.getPossibleAddresses(TcpIpJoiner.java:440) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.joinViaPossibleMembers(TcpIpJoiner.java:134) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.doJoin(TcpIpJoiner.java:93) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.internal.cluster.impl.AbstractJoiner.join(AbstractJoiner.java:135) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.Node.join(Node.java:702) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.Node.start(Node.java:393) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceImpl.<init>(HazelcastInstanceImpl.java:132) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.constructHazelcastInstance(HazelcastInstanceFactory.java:218) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.newHazelcastInstance(HazelcastInstanceFactory.java:176) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.newHazelcastInstance(HazelcastInstanceFactory.java:126) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.core.Hazelcast.newHazelcastInstance(Hazelcast.java:58) [hazelcast-3.8.2.jar:3.8.2]
at io.vertx.spi.cluster.hazelcast.HazelcastClusterManager.lambda$join$0(HazelcastClusterManager.java:161) [vertx-hazelcast-3.4.1.jar:na]
at io.vertx.core.impl.ContextImpl.lambda$executeBlocking$1(ContextImpl.java:271) ~[vertx-core-3.4.1.jar:na]
at io.vertx.core.impl.TaskQueue.lambda$new$0(TaskQueue.java:60) ~[vertx-core-3.4.1.jar:na]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_152]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_152]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_152]
2018-02-12 13:10:15.418+0000 [] [vert.x-worker-thread-0] WARN  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Cannot resolve hostname '1.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal'. Please make sure host is valid and reachable. 
2018-02-12 13:10:15.418+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Error during resolving possible target! 
java.net.UnknownHostException: 1.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal
at java.net.InetAddress.getAllByName0(InetAddress.java:1280) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1192) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1126) ~[na:1.8.0_152]
at java.net.InetAddress.getByName(InetAddress.java:1076) ~[na:1.8.0_152]
at com.hazelcast.nio.Address.<init>(Address.java:54) ~[hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.addPossibleAddresses(TcpIpJoiner.java:466) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.getPossibleAddresses(TcpIpJoiner.java:440) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.joinViaPossibleMembers(TcpIpJoiner.java:134) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.doJoin(TcpIpJoiner.java:93) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.internal.cluster.impl.AbstractJoiner.join(AbstractJoiner.java:135) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.Node.join(Node.java:702) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.Node.start(Node.java:393) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceImpl.<init>(HazelcastInstanceImpl.java:132) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.constructHazelcastInstance(HazelcastInstanceFactory.java:218) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.newHazelcastInstance(HazelcastInstanceFactory.java:176) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.newHazelcastInstance(HazelcastInstanceFactory.java:126) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.core.Hazelcast.newHazelcastInstance(Hazelcast.java:58) [hazelcast-3.8.2.jar:3.8.2]
at io.vertx.spi.cluster.hazelcast.HazelcastClusterManager.lambda$join$0(HazelcastClusterManager.java:161) [vertx-hazelcast-3.4.1.jar:na]
at io.vertx.core.impl.ContextImpl.lambda$executeBlocking$1(ContextImpl.java:271) ~[vertx-core-3.4.1.jar:na]
at io.vertx.core.impl.TaskQueue.lambda$new$0(TaskQueue.java:60) ~[vertx-core-3.4.1.jar:na]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_152]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_152]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_152]
2018-02-12 13:10:15.419+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] [10.255.190.128]:5701 is local? true 
2018-02-12 13:10:15.419+0000 [] [vert.x-worker-thread-0] WARN  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Cannot resolve hostname '2.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal'. Please make sure host is valid and reachable. 
2018-02-12 13:10:15.419+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Error during resolving possible target! 
java.net.UnknownHostException: 2.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal
at java.net.InetAddress.getAllByName0(InetAddress.java:1280) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1192) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1126) ~[na:1.8.0_152]
at java.net.InetAddress.getByName(InetAddress.java:1076) ~[na:1.8.0_152]
at com.hazelcast.nio.Address.<init>(Address.java:54) ~[hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.addPossibleAddresses(TcpIpJoiner.java:466) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.getPossibleAddresses(TcpIpJoiner.java:440) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.joinViaPossibleMembers(TcpIpJoiner.java:134) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.doJoin(TcpIpJoiner.java:93) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.internal.cluster.impl.AbstractJoiner.join(AbstractJoiner.java:135) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.Node.join(Node.java:702) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.Node.start(Node.java:393) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceImpl.<init>(HazelcastInstanceImpl.java:132) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.constructHazelcastInstance(HazelcastInstanceFactory.java:218) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.newHazelcastInstance(HazelcastInstanceFactory.java:176) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.instance.HazelcastInstanceFactory.newHazelcastInstance(HazelcastInstanceFactory.java:126) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.core.Hazelcast.newHazelcastInstance(Hazelcast.java:58) [hazelcast-3.8.2.jar:3.8.2]
at io.vertx.spi.cluster.hazelcast.HazelcastClusterManager.lambda$join$0(HazelcastClusterManager.java:161) [vertx-hazelcast-3.4.1.jar:na]
at io.vertx.core.impl.ContextImpl.lambda$executeBlocking$1(ContextImpl.java:271) ~[vertx-core-3.4.1.jar:na]
at io.vertx.core.impl.TaskQueue.lambda$new$0(TaskQueue.java:60) ~[vertx-core-3.4.1.jar:na]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_152]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_152]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_152]
2018-02-12 13:10:15.419+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] This node will assume master role since no possible member where connected to. 
2018-02-12 13:10:15.420+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.system - [10.255.190.128]:5701 [nimbus] [3.8.2] Cluster version set to 3.8 
2018-02-12 13:10:15.420+0000 [] [vert.x-worker-thread-0] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] PostJoin master: [10.255.190.128]:5701, isMaster: true 
2018-02-12 13:10:15.420+0000 [] [vert.x-worker-thread-0] INFO  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] 


Members [1] {
Member [10.255.190.128]:5701 - 2b5c8d88-9db4-4405-bc9b-b40bef62d12d this
}
 
2018-02-12 13:10:15.443+0000 [] [vert.x-worker-thread-0] INFO  com.hazelcast.core.LifecycleService - [10.255.190.128]:5701 [nimbus] [3.8.2] [10.255.190.128]:5701 is STARTED 
2018-02-12 13:10:15.517+0000 [] [vert.x-eventloop-thread-0] INFO  c.h.i.p.impl.PartitionStateManager - [10.255.190.128]:5701 [nimbus] [3.8.2] Initializing cluster partition table arrangement... 
2018-02-12 13:10:15.523+0000 [] [vert.x-eventloop-thread-0] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 

<snip>Application-specific initialization logging - no hazelcast output</snip>


2018-02-12 13:10:47.099+0000 [] [hz._hzInstance_1_nimbus.IO.thread-Acceptor] INFO  c.h.nio.tcp.SocketAcceptorThread - [10.255.190.128]:5701 [nimbus] [3.8.2] Accepting socket connection from /10.255.98.168:37853 
2018-02-12 13:10:47.103+0000 [] [hz._hzInstance_1_nimbus.cached.thread-1] INFO  c.h.nio.tcp.TcpIpConnectionManager - [10.255.190.128]:5701 [nimbus] [3.8.2] Established socket connection between /10.255.190.128:5701 and /10.255.98.168:37853 
2018-02-12 13:10:47.108+0000 [] [hz._hzInstance_1_nimbus.IO.thread-out-0] DEBUG c.h.n.t.SocketWriterInitializerImpl - [10.255.190.128]:5701 [nimbus] [3.8.2] Initializing SocketWriter WriteHandler with Cluster Protocol 
2018-02-12 13:11:00.344+0000 [] [hz._hzInstance_1_nimbus.cached.thread-1] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:11:15.345+0000 [] [hz._hzInstance_1_nimbus.cached.thread-1] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:11:30.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-3] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:11:45.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-1] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:12:00.344+0000 [] [hz._hzInstance_1_nimbus.cached.thread-3] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:12:15.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-3] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:12:30.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-2] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:12:45.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-1] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:13:00.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-2] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:13:15.345+0000 [] [hz._hzInstance_1_nimbus.cached.thread-1] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:13:30.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-1] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:13:45.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-1] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:14:00.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-4] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:14:15.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:14:30.341+0000 [] [hz._hzInstance_1_nimbus.cached.thread-1] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:14:45.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-1] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:15:00.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-4] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:15:15.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:15:15.348+0000 [] [hz._hzInstance_1_nimbus.cached.thread-4] WARN  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Cannot resolve hostname '3.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal'. Please make sure host is valid and reachable. 
2018-02-12 13:15:15.348+0000 [] [hz._hzInstance_1_nimbus.cached.thread-4] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Error during resolving possible target! 
java.net.UnknownHostException: 3.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal: Name or service not known
at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method) ~[na:1.8.0_152]
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928) ~[na:1.8.0_152]
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName0(InetAddress.java:1276) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1192) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1126) ~[na:1.8.0_152]
at java.net.InetAddress.getByName(InetAddress.java:1076) ~[na:1.8.0_152]
at com.hazelcast.nio.Address.<init>(Address.java:54) ~[hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.addPossibleAddresses(TcpIpJoiner.java:466) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.getPossibleAddresses(TcpIpJoiner.java:440) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.searchForOtherClusters(TcpIpJoiner.java:505) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.internal.cluster.impl.SplitBrainHandler.searchForOtherClusters(SplitBrainHandler.java:75) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.internal.cluster.impl.SplitBrainHandler.run(SplitBrainHandler.java:42) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.spi.impl.executionservice.impl.DelegateAndSkipOnConcurrentExecutionDecorator$DelegateDecorator.run(DelegateAndSkipOnConcurrentExecutionDecorator.java:66) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.util.executor.CachedExecutorServiceDelegate$Worker.run(CachedExecutorServiceDelegate.java:228) [hazelcast-3.8.2.jar:3.8.2]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_152]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_152]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_152]
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:64) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:80) [hazelcast-3.8.2.jar:3.8.2]
2018-02-12 13:15:15.350+0000 [] [hz._hzInstance_1_nimbus.cached.thread-4] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] [1.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701 is local? false 
2018-02-12 13:15:15.350+0000 [] [hz._hzInstance_1_nimbus.cached.thread-4] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] [10.255.190.128]:5701 is local? true 
2018-02-12 13:15:15.353+0000 [] [hz._hzInstance_1_nimbus.cached.thread-4] WARN  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Cannot resolve hostname '2.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal'. Please make sure host is valid and reachable. 
2018-02-12 13:15:15.353+0000 [] [hz._hzInstance_1_nimbus.cached.thread-4] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Error during resolving possible target! 
java.net.UnknownHostException: 2.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal: Name or service not known
at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method) ~[na:1.8.0_152]
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928) ~[na:1.8.0_152]
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName0(InetAddress.java:1276) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1192) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1126) ~[na:1.8.0_152]
at java.net.InetAddress.getByName(InetAddress.java:1076) ~[na:1.8.0_152]
at com.hazelcast.nio.Address.<init>(Address.java:54) ~[hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.addPossibleAddresses(TcpIpJoiner.java:466) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.getPossibleAddresses(TcpIpJoiner.java:440) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.searchForOtherClusters(TcpIpJoiner.java:505) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.internal.cluster.impl.SplitBrainHandler.searchForOtherClusters(SplitBrainHandler.java:75) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.internal.cluster.impl.SplitBrainHandler.run(SplitBrainHandler.java:42) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.spi.impl.executionservice.impl.DelegateAndSkipOnConcurrentExecutionDecorator$DelegateDecorator.run(DelegateAndSkipOnConcurrentExecutionDecorator.java:66) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.util.executor.CachedExecutorServiceDelegate$Worker.run(CachedExecutorServiceDelegate.java:228) [hazelcast-3.8.2.jar:3.8.2]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_152]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_152]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_152]
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:64) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:80) [hazelcast-3.8.2.jar:3.8.2]
2018-02-12 13:15:15.353+0000 [] [hz._hzInstance_1_nimbus.cached.thread-4] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Sending SplitBrainJoinMessage to [1.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701 
2018-02-12 13:15:15.355+0000 [] [hz._hzInstance_1_nimbus.cached.thread-1] INFO  c.h.nio.tcp.TcpIpConnectionManager - [10.255.190.128]:5701 [nimbus] [3.8.2] Established socket connection between /10.255.190.128:52345 and 1.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal/10.255.98.168:5701 
2018-02-12 13:15:15.356+0000 [] [hz._hzInstance_1_nimbus.IO.thread-out-1] DEBUG c.h.n.t.SocketWriterInitializerImpl - [10.255.190.128]:5701 [nimbus] [3.8.2] Initializing SocketWriter WriteHandler with Cluster Protocol 
2018-02-12 13:15:20.402+0000 [] [hz._hzInstance_1_nimbus.cached.thread-4] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Should merge to: null 
2018-02-12 13:15:30.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:15:45.345+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:16:00.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-2] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:16:15.345+0000 [] [hz._hzInstance_1_nimbus.cached.thread-4] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:16:30.344+0000 [] [hz._hzInstance_1_nimbus.cached.thread-4] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:16:45.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:17:00.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-2] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:17:15.344+0000 [] [hz._hzInstance_1_nimbus.cached.thread-2] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:17:15.350+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] WARN  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Cannot resolve hostname '3.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal'. Please make sure host is valid and reachable. 
2018-02-12 13:17:15.350+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Error during resolving possible target! 
java.net.UnknownHostException: 3.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal: Name or service not known
at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method) ~[na:1.8.0_152]
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928) ~[na:1.8.0_152]
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName0(InetAddress.java:1276) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1192) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1126) ~[na:1.8.0_152]
at java.net.InetAddress.getByName(InetAddress.java:1076) ~[na:1.8.0_152]
at com.hazelcast.nio.Address.<init>(Address.java:54) ~[hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.addPossibleAddresses(TcpIpJoiner.java:466) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.getPossibleAddresses(TcpIpJoiner.java:440) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.searchForOtherClusters(TcpIpJoiner.java:505) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.internal.cluster.impl.SplitBrainHandler.searchForOtherClusters(SplitBrainHandler.java:75) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.internal.cluster.impl.SplitBrainHandler.run(SplitBrainHandler.java:42) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.spi.impl.executionservice.impl.DelegateAndSkipOnConcurrentExecutionDecorator$DelegateDecorator.run(DelegateAndSkipOnConcurrentExecutionDecorator.java:66) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.util.executor.CachedExecutorServiceDelegate$Worker.run(CachedExecutorServiceDelegate.java:228) [hazelcast-3.8.2.jar:3.8.2]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_152]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_152]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_152]
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:64) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:80) [hazelcast-3.8.2.jar:3.8.2]
2018-02-12 13:17:15.353+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] [1.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701 is local? false 
2018-02-12 13:17:15.354+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] [10.255.190.128]:5701 is local? true 
2018-02-12 13:17:15.356+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] WARN  c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Cannot resolve hostname '2.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal'. Please make sure host is valid and reachable. 
2018-02-12 13:17:15.356+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Error during resolving possible target! 
java.net.UnknownHostException: 2.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal: Name or service not known
at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method) ~[na:1.8.0_152]
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928) ~[na:1.8.0_152]
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName0(InetAddress.java:1276) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1192) ~[na:1.8.0_152]
at java.net.InetAddress.getAllByName(InetAddress.java:1126) ~[na:1.8.0_152]
at java.net.InetAddress.getByName(InetAddress.java:1076) ~[na:1.8.0_152]
at com.hazelcast.nio.Address.<init>(Address.java:54) ~[hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.addPossibleAddresses(TcpIpJoiner.java:466) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.getPossibleAddresses(TcpIpJoiner.java:440) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.cluster.impl.TcpIpJoiner.searchForOtherClusters(TcpIpJoiner.java:505) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.internal.cluster.impl.SplitBrainHandler.searchForOtherClusters(SplitBrainHandler.java:75) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.internal.cluster.impl.SplitBrainHandler.run(SplitBrainHandler.java:42) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.spi.impl.executionservice.impl.DelegateAndSkipOnConcurrentExecutionDecorator$DelegateDecorator.run(DelegateAndSkipOnConcurrentExecutionDecorator.java:66) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.util.executor.CachedExecutorServiceDelegate$Worker.run(CachedExecutorServiceDelegate.java:228) [hazelcast-3.8.2.jar:3.8.2]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_152]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_152]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_152]
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:64) [hazelcast-3.8.2.jar:3.8.2]
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:80) [hazelcast-3.8.2.jar:3.8.2]
2018-02-12 13:17:15.356+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Sending SplitBrainJoinMessage to [1.d5cd4a47-1e4c-4dc6-a850-c02421b4dfc7.apps.internal]:5701 
2018-02-12 13:17:20.421+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] DEBUG c.hazelcast.cluster.impl.TcpIpJoiner - [10.255.190.128]:5701 [nimbus] [3.8.2] Should merge to: null 
2018-02-12 13:17:30.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-2] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:17:45.342+0000 [] [hz._hzInstance_1_nimbus.cached.thread-5] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:18:00.341+0000 [] [hz._hzInstance_1_nimbus.cached.thread-4] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 
2018-02-12 13:18:15.341+0000 [] [hz._hzInstance_1_nimbus.cached.thread-2] DEBUG c.h.i.p.InternalPartitionService - [10.255.190.128]:5701 [nimbus] [3.8.2] Publishing partition state, version: 272 





chefho...@gmail.com

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Feb 13, 2018, 11:08:28 AM2/13/18
to Hazelcast
Is this a bug in hazelcast? Have I configured something incorrectly? Is there something more needed from the environment? Any ideas?

alpars...@gmail.com

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Feb 13, 2018, 11:24:59 AM2/13/18
to Hazelcast
Hello again,

I investigated it and it looks like a bug, but the developers will say the last word about it. I've raised a Github issue, please track it from here: https://github.com/hazelcast/hazelcast/issues/12334

Regards,
Alparslan Avci

chefho...@gmail.com

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Feb 13, 2018, 11:29:01 AM2/13/18
to Hazelcast
ok - I had first opened an issue on github, then decided to post this in the forum, not sure if this was a possible bug or just a configuration issue. The issue I created is this one: https://github.com/hazelcast/hazelcast/issues/12306.

Should I close that one as a duplicate of 12334?

chefho...@gmail.com

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Feb 13, 2018, 11:31:53 AM2/13/18
to Hazelcast

I went ahead and closed my issue  as a duplicate, referencing yours 

Alparslan Avcı

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Feb 13, 2018, 11:32:43 AM2/13/18
to haze...@googlegroups.com
Ok, thanks. 

On Tue, Feb 13, 2018 at 4:31 PM <chefho...@gmail.com> wrote:

I went ahead and closed my issue  as a duplicate, referencing yours 

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Kelcio Barreto

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Mar 27, 2021, 3:24:54 AM3/27/21
to Hazelcast
Any fix for this? I am facing the same issue with Hazelcast TCP-IP + Kubernetes

Dũng Lê

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Oct 29, 2021, 12:28:26 AM10/29/21
to Hazelcast

Hi  Kelcio Barreto

I'm facing with same as you. Have you resolved that issue?

Thanks
Dũng
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