Rest rolling upgrades, distributed -- new cluster can't load from old cluster properly -------------------------------------------------------------------------------------- Key: ISPN-4343 URL: https://issues.jboss.org/browse/ISPN-4343 Project: Infinispan Issue Type: Bug Security Level: Public(Everyone can see) Components: Loaders and Stores, Server Affects Versions: 7.0.0.Alpha4 Reporter: Tomas Sykora Assignee: Dan Berindei Priority: Critical Labels: rolling_upgrade Attachments: cannot_be_cast.txt, clustered-rest-rolling-upgrade.xml, clustered.xml, ISPN-4343.txt, ISPN-4343.zip, restRollUpsTraceLog.zip A try to mimic the process of REST Rolling Upgrades for one old and new server in a clustered environment failed. Scenario is quite simple, we start 2 old servers, store some data in, start 2 new servers and point clients to that new cluster. When issuing a get on a new cluster (want to fetch old entry from old store), the operation fails with attached stack trace. I also include current ISPN testsuite where is added testRestRollingUpgradesDiffVersionsDist test as a reproducer. Respective changes are mirrored in my remote branch: https://github.com/tsykora/infinispan/tree/ISPN-4330 You can run test like: mvn clean verify -P suite.rolling.upgrades -Dzip.dist.old=/home/you/servers/previous-ispn-server-version.zip -Dtest=RestRollingUpgradesTest#testRestRollingUpgradesDiffVersionsDist