Clustered NiFi of 10 nodes have been recently upgraded to v1.9.2. After that the flow/provenance/content storage is not getting cleaned and are eventually filling up and getting to 100% utilization. This will stop the cluster functioning if the affected node is primary node. As a workaround, the node has to be restarted and then the utilization(/data partition) will reduce to 10% or so.
Note: The cluster is docker based.