Devs, We recently upgraded from NiFi 0.4.1 to 0.5.1 on a cluster. We noticed half of our cluster nodes getting "too many open files" errors that require a NiFi restart, while the other half works without this problem. Using 'lsof -p <pid>' to identify the open file descriptors at the time of the problem, we see most of the file descriptors reference deleted files in the content repository like this:
java <pid> <user> <fd> ... /content_repository/81/123456789-123456 (deleted) A 'ls /content_repository/81/123456789-123456' confirms that the file has been deleted. We are continuing our investigation into why some of our nodes have a problem but others don't. Has anyone else seen this? Did anything change between 0.4.1 and 0.5.1 related to deleting files from the content repository? Regards, -- Mike
