Re: [akka-user] Re: Node rejoin seed node failure after seed node restart

2016-11-17 Thread Patrik Nordwall 
+1 to what Justin said, read more here
http://doc.akka.io/docs/akka/2.4/scala/cluster-usage.html#Downing

On Wed, Nov 16, 2016 at 2:24 PM, Justin du coeur  wrote:

> On Wed, Nov 16, 2016 at 7:33 AM, Chinmay Raval 
> wrote:
>
>> As Guido Medina suggested, you need both your nodes as seed nodes. Also
>> you might need auto-down-unreachable-after property.
>>
>
> auto-down is strongly dis-recommended for any production system -- it is
> dangerously likely to break your system in scary ways.  Personally, I
> recommend avoiding it entirely, since it is a misleading crutch.  Real akka
> systems require more robust downing approaches...
>
> --
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-- 

Patrik Nordwall
Akka Tech Lead
Lightbend  -  Reactive apps on the JVM
Twitter: @patriknw

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Re: [akka-user] Re: Node rejoin seed node failure after seed node restart

2016-11-16 Thread Justin du coeur 
On Wed, Nov 16, 2016 at 7:33 AM, Chinmay Raval  wrote:

> As Guido Medina suggested, you need both your nodes as seed nodes. Also
> you might need auto-down-unreachable-after property.
>

auto-down is strongly dis-recommended for any production system -- it is
dangerously likely to break your system in scary ways.  Personally, I
recommend avoiding it entirely, since it is a misleading crutch.  Real akka
systems require more robust downing approaches...

-- 
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>>  Check the FAQ: 
>> http://doc.akka.io/docs/akka/current/additional/faq.html
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[akka-user] Re: Node rejoin seed node failure after seed node restart

2016-11-16 Thread Chinmay Raval 
As Guido Medina suggested, you need both your nodes as seed nodes. Also you 
might need auto-down-unreachable-after property.

ex:

cluster {
 seed-nodes = [
 "akka.tcp://system@127.0.0.1: 
2554",
 "akka.tcp://system@127.0.0.1: 
2554",
 ]
 auto-down-unreachable-after = 10s
}

 This would forcefully mark the status of unreachable node to "down". 

Cheers

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[akka-user] Re: Node rejoin seed node failure after seed node restart

2016-07-08 Thread 谌浏洋 
Thanks

On Friday, July 8, 2016 at 7:51:59 PM UTC+8, Guido Medina wrote:
>
> *Copy & paste from the other thread*
>
> Your nodes will re-join if you keep at least 1 seed node up while 
> restarting other nodes, try having 2 seed nodes.
> In production don't ever relay on only 1 seed node, have at least 2.
>
> HTH,
>
> Guido.
>
> On Friday, July 8, 2016 at 11:44:52 AM UTC+1, 谌浏洋 wrote:
>>
>> Sorry for my poor English
>>
>> I started two node A(seed) B, Both A and B can communication to each 
>> other.
>>
>> When I restart node A. node B cannot join A anymore. (No more Member 
>> Event be notified)
>>
>> B node console repeat print msg :
>>
>> [INFO] [07/08/2016 10:30:17.381] 
>> [system-akka.actor.default-dispatcher-22] 
>> [akka.cluster.Cluster(akka://system)] Cluster Node [akka.tcp://
>> system@127.0.0.1:57237] - Leader can currently not perform its duties, 
>> reachability status: [akka.tcp://system@127.0.0.1:57237 -> akka.tcp://
>> system@127.0.0.1:2551: Unreachable Unreachable 
>> ], member status: [akka.tcp://
>> system@127.0.0.1:2551 Up seen=false, akka.tcp://system@127.0.0.1:57237 
>> Up seen=true]
>>
>> Akka 2.4.7
>>
>> Please help me.
>>
>> Thanks
>>
>>
>> My node A configuration is
>>
>> akka {
>>   actor{
>> provider = "akka.cluster.ClusterActorRefProvider"
>> serializers {
>>   java = 
>> "org.appsugar.cluster.service.akka.serialization.ProtostuffSerialization"
>> }
>>   }
>>   remote {
>> log-remote-lifecycle-events = off
>> netty.tcp {
>>   hostname = "127.0.0.1"
>>   port = 2551
>> }
>>   }
>>
>>   cluster {
>> seed-nodes = ["akka.tcp://system@127.0.0.1:2551"]
>>   }
>> }
>> akka.cluster.metrics.enabled=off
>>
>> akka.extensions=["akka.cluster.metrics.ClusterMetricsExtension"]
>>
>> akka.cluster.metrics.native-library-extract-folder=${user.dir}/target/native
>>
>> akka.actor.default-mailbox {
>>   mailbox-type = "akka.dispatch.SingleConsumerOnlyUnboundedMailbox"
>> }`
>>
>> Node B configuration as same as Node A, Just change port to 0
>>
>

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[akka-user] Re: Node rejoin seed node failure after seed node restart

2016-07-08 Thread Guido Medina 
*Copy & paste from the other thread*

Your nodes will re-join if you keep at least 1 seed node up while 
restarting other nodes, try having 2 seed nodes.
In production don't ever relay on only 1 seed node, have at least 2.

HTH,

Guido.

On Friday, July 8, 2016 at 11:44:52 AM UTC+1, 谌浏洋 wrote:
>
> Sorry for my poor English
>
> I started two node A(seed) B, Both A and B can communication to each other.
>
> When I restart node A. node B cannot join A anymore. (No more Member Event 
> be notified)
>
> B node console repeat print msg :
>
> [INFO] [07/08/2016 10:30:17.381] [system-akka.actor.default-dispatcher-22] 
> [akka.cluster.Cluster(akka://system)] Cluster Node [akka.tcp://
> system@127.0.0.1:57237] - Leader can currently not perform its duties, 
> reachability status: [akka.tcp://system@127.0.0.1:57237 -> akka.tcp://
> system@127.0.0.1:2551: Unreachable Unreachable 
> ], member status: [akka.tcp://
> system@127.0.0.1:2551 Up seen=false, akka.tcp://system@127.0.0.1:57237 Up 
> seen=true]
>
> Akka 2.4.7
>
> Please help me.
>
> Thanks
>
>
> My node A configuration is
>
> akka {
>   actor{
> provider = "akka.cluster.ClusterActorRefProvider"
> serializers {
>   java = 
> "org.appsugar.cluster.service.akka.serialization.ProtostuffSerialization"
> }
>   }
>   remote {
> log-remote-lifecycle-events = off
> netty.tcp {
>   hostname = "127.0.0.1"
>   port = 2551
> }
>   }
>
>   cluster {
> seed-nodes = ["akka.tcp://system@127.0.0.1:2551"]
>   }
> }
> akka.cluster.metrics.enabled=off
>
> akka.extensions=["akka.cluster.metrics.ClusterMetricsExtension"]
>
> akka.cluster.metrics.native-library-extract-folder=${user.dir}/target/native
>
> akka.actor.default-mailbox {
>   mailbox-type = "akka.dispatch.SingleConsumerOnlyUnboundedMailbox"
> }`
>
> Node B configuration as same as Node A, Just change port to 0
>

-- 
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[akka-user] Re: Node rejoin seed node failure after seed node restart

2016-07-08 Thread Guido Medina 
You posted this question in another thread, please go there and look.

On Friday, July 8, 2016 at 11:44:52 AM UTC+1, 谌浏洋 wrote:
>
> Sorry for my poor English
>
> I started two node A(seed) B, Both A and B can communication to each other.
>
> When I restart node A. node B cannot join A anymore. (No more Member Event 
> be notified)
>
> B node console repeat print msg :
>
> [INFO] [07/08/2016 10:30:17.381] [system-akka.actor.default-dispatcher-22] 
> [akka.cluster.Cluster(akka://system)] Cluster Node [akka.tcp://
> system@127.0.0.1:57237] - Leader can currently not perform its duties, 
> reachability status: [akka.tcp://system@127.0.0.1:57237 -> akka.tcp://
> system@127.0.0.1:2551: Unreachable Unreachable 
> ], member status: [akka.tcp://
> system@127.0.0.1:2551 Up seen=false, akka.tcp://system@127.0.0.1:57237 Up 
> seen=true]
>
> Akka 2.4.7
>
> Please help me.
>
> Thanks
>
>
> My node A configuration is
>
> akka {
>   actor{
> provider = "akka.cluster.ClusterActorRefProvider"
> serializers {
>   java = 
> "org.appsugar.cluster.service.akka.serialization.ProtostuffSerialization"
> }
>   }
>   remote {
> log-remote-lifecycle-events = off
> netty.tcp {
>   hostname = "127.0.0.1"
>   port = 2551
> }
>   }
>
>   cluster {
> seed-nodes = ["akka.tcp://system@127.0.0.1:2551"]
>   }
> }
> akka.cluster.metrics.enabled=off
>
> akka.extensions=["akka.cluster.metrics.ClusterMetricsExtension"]
>
> akka.cluster.metrics.native-library-extract-folder=${user.dir}/target/native
>
> akka.actor.default-mailbox {
>   mailbox-type = "akka.dispatch.SingleConsumerOnlyUnboundedMailbox"
> }`
>
> Node B configuration as same as Node A, Just change port to 0
>

-- 
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