Hi Maxim,

as far as I understood, the join part is just the way, how the different instances find each other. Multicast in general seems to work.

Greetings Peter

Am 17.03.20 um 09:41 schrieb Maxim Solodovnik:
Hello Peter,

multicast is turned _OFF_ in your config :))
During my tests I have enabled multicast and everything was working
Servers can be plugged-i dynamically :)

Glad everything is working :)

On Tue, 17 Mar 2020 at 15:06, Peter Dähn <[email protected]> wrote:
Hi Maxim,

I think I got it working now. I need to change the config a bit.

1. turn on mulicast and use this hazelcast config:

https://docs.hazelcast.org/docs/latest/manual/html-single/index.html#discovering-members-by-tcp

       <network>
          <join>
              <multicast enabled="false">
              </multicast>
              <tcp-ip enabled="true">
                  <member>server1.example.com</member>
                  <member>server2.example.com</member>
              </tcp-ip>
          </join>


Greetings Peter

PS: and not a day to early... user perform "load-tests" by now....

Am 15.03.20 um 08:21 schrieb Maxim Solodovnik:
Hello Peter,

sorry for the late reply
I'm using this config for my tests:
https://github.com/apache/openmeetings/blob/master/openmeetings-web/src/main/webapp/WEB-INF/classes/hazelcast.xml

line 61: make instance-name UNIQUE (I'm using server-1, server-2 etc.)
line 64: enable multicast
line 69 uncomment, set-up ports interfaces

This config for your server nodes
Your clients will use UI

On Fri, 13 Mar 2020 at 20:26, Peter Dähn <[email protected]> wrote:
Hi Maxim,

do I need to do something like that 
(https://docs.hazelcast.org/docs/3.0/manual/html/ch12s02.html#IPv6)

<hazelcast>
      ...
      <network>
          <port auto-increment="true">5701</port>
          <join>
              <multicast enabled="false">
                  <multicast-group>FF02:0:0:0:0:0:0:1</multicast-group>
                  <multicast-port>54327</multicast-port>
              </multicast>
              <tcp-ip enabled="true">
                  <member>[fe80::223:6cff:fe93:7c7e]:5701</member>
                  <interface>192.168.1.0-7</interface>
                  <interface>192.168.1.*</interface>
                  <interface>fe80:0:0:0:45c5:47ee:fe15:493a</interface>
              </tcp-ip>
          </join>
          <interfaces enabled="true">
              <interface>10.3.16.*</interface>
              <interface>10.3.10.4-18</interface>
              <interface>fe80:0:0:0:45c5:47ee:fe15:*</interface>
              <interface>fe80::223:6cff:fe93:0-5555</interface>
          </interfaces>
          ...
      </network>

to enable IPv6 support in addition? Clients usually have both addresses but 
some of them just IPv4 or IPv6 only.

Greetings Peter





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