Cross-DC cache #9828

Cyben · 2022-01-27T11:08:43Z

Cyben
Jan 27, 2022

Hey, I'm working on Cross-dc deployment of keycloak with JDG as remote infinispan server.

After following the documentation, I saw that on infinispan server (infinispan.xml) I should configure a template of replicated cache type for all of caches (work, session, ....)
But in domain.xml in keycloak for each cache I can configure distributed cache type.

So my question is how does it work when in keycloak I configure distributed cache but in infinispan I configure replicated cache?

Here is the template:

<cache-container ... >
  <replicated-cache-configuration name="sessions-cfg" 
                                  mode="SYNC"> 
    <locking acquire-timeout="0" /> 
    <backups>
      <backup site="site2" strategy="SYNC" /> 
    </backups>
  </replicated-cache-configuration>
</cache-container>

And here is an example from domain.xml:

<distributed-cache name="sessions" 
                   owners="1"> 
    <remote-store cache="sessions" 
                  remote-servers="remote-cache" 
                  passivation="false"
                  fetch-state="false"
                  purge="false"
                  preload="false"
                  shared="true">
        <property name="rawValues">true</property>
        <property name="marshaller">org.keycloak.cluster.infinispan.KeycloakHotRodMarshallerFactory</property>
        <property name="infinispan.client.hotrod.auth_username">myuser</property>
        <property name="infinispan.client.hotrod.auth_password">qwer1234!</property>
        <property name="infinispan.client.hotrod.auth_realm">default</property>
        <property name="infinispan.client.hotrod.auth_server_name">infinispan</property>
        <property name="infinispan.client.hotrod.sasl_mechanism">SCRAM-SHA-512</property>
        <property name="infinispan.client.hotrod.trust_store_file_name">/path/to/truststore.jks</property>
        <property name="infinispan.client.hotrod.trust_store_type">JKS</property>
        <property name="infinispan.client.hotrod.trust_store_password">password</property>
    </remote-store>
</distributed-cache>

For example, what happens if I set a distributed cache with 2 owners. ( Reminding that from the infinispan site it is a replicated cache )

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Cross-DC cache #9828

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Cross-DC cache #9828

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Cyben Jan 27, 2022

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Cyben
Jan 27, 2022