Changing the replication factor does no result in an altered topic

[njlr]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce

• Create a topic with some replication factor
• Apply (succeed)
• Change the replication factor
• Apply
• Execution will succeed, but the replication factor is not changed

Expected behavior

The replication factor should be changed or an error should be returned if the change is impossible

Runtime environment

• Jikkou: 0.16.0 (Docker)
• Docker version: 20.10.21 baeda1f
• Kafka Cluster Version: 3.3.2 (Amazon MSK)

[fhussonnois]

Hi @njlr, this feature is currently not supported yet.

[Rediska47]

I have the same problem and just want to add an example of apply log:
TASK [NONE] Unchanged topic 'my-first-topic' (partitions=6, replicas=2, configs=[cleanup.policy=compact]) - OK
{
"status" : "OK",
"changed" : false,
"failed" : false,
"end" : 1695387876733,
"data" : {
"name" : "my-first-topic",
"partitions" : {
"after" : 6,
"before" : 6,
"changeType" : "NONE"
},
"replicas" : {
"after" : 2,
"before" : 1,
"changeType" : "UPDATE"
},
"configs" : {
"cleanup.policy" : {
"after" : "compact",
"before" : "compact",
"changeType" : "NONE"
}
},
"changeType" : "NONE"
}
}
EXECUTION in 40ms
ok : 1, created : 0, altered : 0, deleted : 0 failed : 0

There are different replicas in "before" and "after" but no changes applied.
It was run in docker image.
Jikkou version "0.27.0" 2023-09-06
JVM: 17.0.8 (Oracle Corporation Substrate VM 17.0.8+9-LTS)
Docker version 19.03.1, build 74b1e89