Trying to set a negative value for `filestore_merge_threshold` in Red Hat Ceph Storage fails with "Invalid argument", why?

Solution Verified - Updated -


  • While trying to set filestore_merge_threshold = -40, the command returns an "Invalid argument".
# ceph --admin-daemon /var/run/ceph/ceph-osd.312.asok config set filestore_merge_threshold -40
    "error": "error setting 'filestore_merge_threshold' to '-40': (22) Invalid argument"

# ceph tell osd.312 injectargs '--filestore_merge_threshold -40'
Parse error setting filestore_merge_threshold to '-40' using injectargs.


  • Red Hat Ceph Storage 1.3.1
  • ceph-0.94.3-3.el7cp.x86_64

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