Hi Patrick, Looks like this issue slipped through the cracks. Sorry about that. > My understanding is that this entry in the threddsconfig.xml manages the > Berkely DB files. Correct, but only the first two elements: "FeatureCollection.dir" and "FeatureCollection.maxSize". The function of the first one is obvious. The second one governs how much RAM is made available to the FeatureCollection cache. It does not control how many files are created on disk. The remaining element, "FeatureCollection.RollingFileAppender", and it's children, control how FMRC status messages are logged by THREDDS. They have NOTHING to do with the .jdb cache files. Confusing, right? We've actually gotten rid of this element in THREDDS 5.0 . My recommendation is to use the default values for everything in that section. To do so, you can set those values back manually or just delete (or comment-out) the entire section. > Will this manage the jbd files and prevent them from filing up my cache again? Really? You have a ton of .jdb files piling up? What does your directory look like? Can you give me an "ls"? > Do I need to rebuild the Berkely DB? No. Instead, delete the cache. Just do something like: rm -r /usr/local/rtoper/tomcat/content/thredds/cache/collection/ The .jdb files will be recreated the next time you deploy thredds and access an FMRC. Note that those FMRCs may be slower to access the first time because the cached information about them is gone. I'm not sure why you encountered that error after your coworker purged some of the .jdb files. Maybe because he didn't get them all? My advice is just to delete the directory and everything in it. Cheers, Christian  https://github.com/Unidata/thredds/pull/676 Ticket Details =================== Ticket ID: BRG-348930 Department: Support THREDDS Priority: Critical Status: Closed =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.