Hi , All After we upgarding NiFi 1.9.2 to 1.22.0 (using cluster) , we found that ListFile will lost tracking. Just like @TimothySpann  say. see: https://community.cloudera.com/t5/Support-Questions/NiFi-upgrade-1-9-2-to-1-23-0/m-p/376353#M242873 Here is our ListFile setting : Listing Strategy Tracking Entities Recurse Subdirectories true Record Writer No value set Input Directory Location Remote File Filter [^\.].* Path Filter No value set Include File Attributes true Minimum File Age 1 min Maximum File Age No value set Minimum File Size 0 B Maximum File Size No value set Ignore Hidden Files true Target System Timestamp Precision Auto Detect Entity Tracking State Cache RedisDistributedMapCacheClientService Entity Tracking Time Window 365 days Entity Tracking Initial Listing Target All Available Entity Tracking Node Identifier ${hostname()} Track Performance false Maximum Number of Files to Track 100000 Max Disk Operation Time 10 secs Max Directory Listing Time 3 mins  We want to know thet reason why upgrade will cause lost tracking and duplicate files. Is that isListingResetNecessary(see below) be triggered that cause duplicate files ? https://github.com/apache/nifi/blob/rel/nifi-1.22.0/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/ListFile.java There are state save in redis　－＞ListedEntities::44793129-057f-1c10-af50-b96588dde6d7. But it seems to not using this k=v in new NiFi ... View more