How to use Notify and Wait in Apache Nifi version 2.0.0

[#1]

I am facing an issue with Notify and Wait starting from version 2.0.0. In order for them to listen to each other in version 1.28, I need to configure them with the MapCacheClientService 2.0.0 and MapCacheServer 2.0.0 services. However, in version 2.0.0, although I can still find both services in the documentation, in practice, the configuration only includes the MapCacheClientService 2.0.0 service, and I can no longer find the MapCacheServer 2.0.0 service.

Using Wait and Notify in version 2.0.0 seems much more difficult compared to previous versions. I spent two days trying to figure it out, but I haven't made any progress. If possible, could you please guide me on the correct configuration so that Wait and Notify can work properly, like they did in the older versions?

[#2]

Hi @DuyChan ,

Have you tried using DistributedMapCacheClientService & DistributedMapCacheClientServer instead. Im not sure what is the difference with the MapCacheClientService but it should do the same job. Also be aware because of size limitation Nifi is not being published with all packages and in case you dont find services or processors that should be part of nifi , you probably need to download jar\nar pacakge from maven repositories and save to the Nifi Lib Folder:

https://mvnrepository.com/artifact/org.apache.nifi/nifi-hazelcast-services-api-nar/2.0.0

https://mvnrepository.com/artifact/org.apache.nifi/nifi-distributed-cache-client-service-api

If that helps please accept the solution.

Thanks

[#3 · Accepted solution]

@SAMSAL MapCacheClientService provides the ability to communicate with a MapCacheServer. I can find MapCacheServer in Add Controller Service

It seems like I have found a solution to my issue.

Thank you