We have been noticing an issue in our production environment where BDB log size is increasing. I have the cleaner statistics across the entire week if that would help in the investigation. The BDB JE version we are using in 7.4.5. The number of cleaner threads are 25. Thread dump reveals some activity on the cleaner front. The stats [Cleaning: fileDeletionBacklog] seems to be at 13137 and seems to be increasing. The cleaning:maxUtilization is at 23 and cleaning:minUtilization is at 15.
Please advise if I can attach any more information which can help in diagnosing the root cause.
One more thing to add: The size of BDB log on master node is 279G whereas on slave node it is 171G.