Hazelcast Cluster Members

[Martin Schares]

We updated a 4 node environment to Payara 5. This environment is single instance per server, no cluster, no deployment groups. We set Hazelcast to discover via multicast. In Payara 4 all 4 nodes would join the cluster. Now with Payara 5 we get 2, 2 node clusters where all 4 nodes see each other as members. I am a little confused by this output if somebody could shed some light on what I am seeing.

[root@webqa01 ~]# /opt/payara/live/bin/asadmin list-hazelcast-cluster-members
Instance Name  Instance Group  Instance Type  Host Name      HTTP Ports  HTTPS Ports  Admin Port  Hazelcast Port  Lite Member  Deployed Applications                         
server         server-config   DAS            /10.240.3.202  80          443          4848        4900            false        ejb-timer-service-app, __admingui 
server         server-config   DAS            /10.240.3.205  80          443          4848        4900            false        ejb-timer-service-app, __admingui  

[root@webqa01 ~]# /opt/payara/live/bin/asadmin list-hazelcast-members
{ server-server-config-/10.240.3.205:4900 server-server-config-/10.240.3.202:4900-this server-server-config-/10.240.3.206:4900 server-server-config-/10.240.3.204:4900 }

[HASUNUMA Kenji]

Hi Martin,

Maybe, only two DAS instances are running and other two DAS instances are preparing when you run the first command. If all DAS instances are already running, there are four DAS in the message of list-hazelcast-cluster-members command. When I try two node environment, the output of list-hazelcast-cluster-members command is temporally only one DAS instance. After two DAS is available, there are two DAS instance in the message on my environment.

Try again after you confirm to log in all of four DAS instances. Even if your four DAS are already running correctly but there are only two DAS instances in the message of list-hazelcast-cluster-members, something is wrong and we should need further investigation.

Thanks,

Kenji

2018年10月4日木曜日 9時51分23秒 UTC+9 Martin Schares: