[keycloak-dev] Infinispan error during update in ha configuration

[Marek Posolda]

I think you can't mix old and new Keycloak servers in same cluster. And 
rolling upgrade (zero downtime upgrade) is not yet supported. We plan to 
add support for it, but it won't be in a very near future as it will 
likely require quite a lot of work...

In shortcut, it will be recommended to stop all pods with 4.5.0 and then 
start pods with 6.0.1.

Marek


On 02/07/2019 16:25, Мартынов Илья wrote:
> Hello!
> I have Keycloak 4.5.0.Final deployed in standalone-ha configuration in k8s
> cluster. When I try to update Keycloak to version 6.0.1, the following
> happens:
> 1. K8s starts new pod with version 6.0.1
> 2. Old pod still running, it will be terminated on successfull readiness
> probe of the new pod
> 3. New pod discovers old pod via JGroups, cache synchronization started
> 4. Exception in new pod:
> 02-07-2019;13:34:29,220 WARN [stateTransferExecutor-thread--p25-t1]
> org.infinispan.statetransfer.InboundTransferTask ISPN000210: Failed to
> request state of cache work from node idp-6569c544b
> -hsd6g, segments {0-255}: org.infinispan.remoting.RemoteException:
> ISPN000217: Received exception from idp-6569c544b-hsd6g, see cause for
> remote stack trace
>          at org.infinispan at 9.4.8.Final
> //org.infinispan.remoting.transport.ResponseCollectors.wrapRemoteException(ResponseCollectors.java:28)
> ...
> Caused by: java.io.IOException: Unknown type: 132
>          at
> org.infinispan.marshall.core.GlobalMarshaller.readNonNullableObject(GlobalMarshaller.java:681)
>          at
> org.infinispan.marshall.core.GlobalMarshaller.readNullableObject(GlobalMarshaller.java:355)
>          at
> org.infinispan.marshall.core.BytesObjectInput.readObject(BytesObjectInput.java:40)
>
> Looks like this exception blocks further Keycloak startup, because nothing
> happens in logs afterwards. Also, my rest service deployed as JAX-RS bean
> also doesn't respond, so pod is not treated as alive by Kubernetes.
> Please help.
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