Externalization of Hazelcast.yml file without restarting springboot application

[Mahi Sharma]

Hi Team,

I am trying to externalize the hazelcast.yml in springboot application.So move the file to config server repo and accessing through UrlYamlConfig but if we are changing any properties in runtime then it is not reflecting without restart of springboot application.So always it is require to restart the application if i am modifying any properties in hazelcast.yml. which violates  externalization.

Is there any way to achieve this without restarting the springboot application , the latest hazelcast config properties will be apply.

Thanks,

Mahi

[Josef Cacek]

Hi Mahi,

Hazelcast doesn't reload configuration during the member run. Still,
some parts of the configuration can be updated dynamically at runtime.
https://docs.hazelcast.com/hazelcast/5.1/configuration/dynamic-config

If the dynamic config doesn't cover your use case, maybe switching
from embedded mode to client-server could help.
Some parts of the configuration can be changed during the cluster
rolling restart. For others, you could use the Blue-Green deployment
feature (available in Hazelcast Enterprise):
https://docs.hazelcast.com/hazelcast/5.1/getting-started/blue-green

Regards,
-- Josef

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