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JacksonCborSerializer should use CBOR ofc, #28918

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* When we updated to Jackson 2.10 (prior Akka 2.6.0) the new JsonFactoryBuilder
  was used. That doesn't preserve the formatParserFeatures and formatGeneratorFeatures
  from the base CBORFactory and therefore the format was plain JSON.

* rolling update compatibility
This commit is contained in:
Patrik Nordwall 2020-04-14 16:08:02 +02:00
parent 6361bdb153
commit ef9a2c79c6
4 changed files with 91 additions and 9 deletions
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29
akka-docs/src/main/paradox/project/rolling-update.md
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@ -86,3 +86,32 @@ has been prepared to accept those shorter forms but still emits the old long man
This means that a rolling update will have to go through at least one of 2.6.2, 2.6.3 or 2.6.4 when upgrading to
2.6.5 or higher or else cluster nodes will not be able to communicate during the rolling update.
### 2.6.5 JacksonCborSerializer
Issue: [#28918](https://github.com/akka/akka/issues/28918). JacksonCborSerializer was using plain JSON format
instead of CBOR.
If you have `jackson-cbor` in your `serialization-bindings` a rolling upgrade will have to go through 2.6.5 when
upgrading to 2.6.5 or higher.
In Akka 2.6.5 the `jackson-cbor` binding will still serialize to JSON format to support rolling update from 2.6.4.
It also adds a new binding to be able to deserialize CBOR format when rolling update from 2.6.5 to 2.6.6.
In Akka 2.6.6 the `jackson-cbor` binding will serialize to CBOR and that can be deserialized by 2.6.5. Old
data, such as persistent events, can still be deserialized.
You can start using CBOR format already with Akka 2.6.5 without waiting for the 2.6.6 release. First, perform
a rolling update to Akka 2.6.5 using default configuration. Then change the configuration to:
```
akka.actor {
serializers {
jackson-cbor = "akka.serialization.jackson.JacksonCborSerializer"
}
serialization-identifiers {
jackson-cbor = 33
}
}
```
Perform a second rolling update with the new configuration.