Hi everybody, I reached out to Olaf and Kengo to upgrade Jenkins and some plugins, and then executed the plan (https://issues.apache.org/jira/browse/BIGTOP-3611) some minutes ago. There is a problem with a plugging (sshslave afaics) that is not able to launch the agent on the various workers.
It should be a combination of usual luck while upgrading plus some new setting to add, I hope to get everything back in running mode soon. Really sorry for the trouble! Luca
