Our KVStore, which is wiredTiger, slowly grows and consumes the entire cache and then will eventually grow outside the cache until restarted. It requires rolling restarts about once a week, and has persisted for months. Anyone else had this issue?
It might be completely unrelated to your case but I had an issue when kvstore was configured as wiredTiger but the database files themselves hadn't been migrated yet.
The kvstore would refuse to start but splunkd would start leaking memory like crazy to the point of oomkiller.
