Future of experimental leshan-server-cluster module

[sbernard31]

We hope we will be able to release a 1.0.0 version of Leshan during this summer.

The state of leshan-server-cluster is clearly not in an acceptable state for a 1.0.0 release... So it will not be part of the release !

It seems to us that the better option is to create a new leshan-server-redis project which could include Redis store implementation. This part should be deliver in the 1.0.0 release.

All the very experimental part about northbound API would be moved in another project/repository.

(reading more about using Leshan in a cluster)

[eliasweingaertner]

First of all, I agree: If the cluster implementation is not good enough for a 1.0.0 release, keep it out.

However, what I'd like have kept in the 1.0.0 would be stable interfaces for Observation and Registration stores:

This way, the actual implementation could be in leshan-server-redis, but the interface could stay in the leshan-server-cluster or simply in the server module.

Does this make sense?

[sbernard31]

@eliasweingaertner to be more precise, the idea is to create a leshan-server-redis module which will be delivered in the 1.0.0 release and which will probably contain :

• RedisRegistrationStore which stores Registration and Observation
• RedisSecurityStore which stores SecurityInfos
• RedisLock which is needed by both stores.

(the rest go in another repositoty)

RegistrationStore and SecurityStore implementation stay in leshan-server-core.

[GiacomoGenovese]

Hi All,
Please correct me if i'm wrong because I didn't investigate the cluster functionality.
The leshan-cluster is a datastore clustering based on Redis HA, isn't it?

[sbernard31]

@GiacomoGenovese,

The leshan-cluster is a datastore clustering based on Redis HA, isn't it?

Yes and also an experimental northbound API which will be moved in its own experimental repository.

[sbernard31]

I created a PR #705 which moves Redis stores in a new leshan-server-redis module.
Next milestone release will contain : leshan-server-redis and leshan-server-cluster.
After that I will move leshan-server-cluster in its own experimental project and leshan-server-cluster will not be released with Leshan anymore.

[sbernard31]

#705 is integrated in master.
leshan-1.0.0-M12 will contain both projects leshan-server-redis and leshan-server-cluster.
leshan-server-cluster will be removed for leshan-1.0.0-M13.

[sbernard31]

#741 is now integrated in master.
Meaning that leshan-server-cluster is no more available in master.
(leshan-server-redis is still there)

The last version of leshan-server-cluster is available in branch cluster.