Description of problem:
In Luminous, there are two configurations for setting the session timeout: (a) the MDSMap session_timeout field which is the ideal setting as it is seen by clients and (b) the mds_session_timeout config option. Currently, the MDS uses both but the MDSMap session_timeout controls the more important behavior of marking session stale.
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.