During massive state transfer with 300 nodes and 3000 caches, the OOB and/or infinispan thread pool gets deadlock. The thread pool is configured with max 1400 threads now and increasing them is not a realistic workaround as the user is planning to add more caches.
Dan Berindei <dberinde> updated the status of jira ISPN-4873 to Reopened
William Burns <wburns> updated the status of jira ISPN-4873 to Resolved
PR: https://github.com/infinispan/jdg/pull/328
PR for 6.3: https://github.com/infinispan/jdg/pull/348