I have upgraded a Cassandra cluster from version 2.0.x to 3.11.4 going trough 2.1.14. After the upgrade, noticed that each node is taking about 10-15 minutes to start, and server is under a very heavy load. Did some digging around and got view leads from the debug log. Messages like: *Keyspace.java:351 - New replication settings for keyspace system_auth - invalidating disk boundary caches * *CompactionStrategyManager.java:380 - Recreating compaction strategy - disk boundaries are out of date for system_auth.roles.*
This is repeating for all keyspaces. Any suggestion to check and what might cause this to happen on every start? Thanks!