Description of problem: Version-Release number of selected component (if applicable): 3.0 How reproducible: 100% Steps to Reproduce: 0. Use an MDS with a very large cache (64GB+) to easily observe the problem. Set mds_cache_memory_limit to the desired maximum size. 1. Fill MDS cache by accessing millions of files Actual results: Observe the MDS uses much more than 64GB in RAM. Expected results: It should only be off mds_cache_memory_limit by a small factor.
Documentation for issue: http://tracker.ceph.com/issues/22599
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2018:1563