CODEWITHSUNDEEP
javaapache-zookeeper
Lars KJ
Lars KJ

Reputation: 662

Zookeeper 3.5.x backwards compability with zookeeper 3.4.x clients

Looking at upgrading several zookeeper clusters from 3.4.(6-10) to a more recent version (3.5.7 or 3.6.0) and we are having hundreds of microservices (java) that are running the the zookeeper 3.4.x clients.

Will the server upgrade break existing clients.

Plan is to start upgrading clients to 3.5 once server is upgraded.

Upvotes: 2

Views: 2389

Answers (1)

kofemann
kofemann

Reputation: 4423

There is quite out-dated documentation from the zookeeper team as well as information in the release notes. My own testing gives me the following results:

  • 3.4.x clients compatible with 3.5.x server
  • 3.4.x and 3.5.x clients can be mixed on 3.5 server
  • 3.5.x clients incompatible with 3.4 server

Upvotes: 3

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