doc: add troubleshooting steps for ceph-fuse

Thanks to John Spray <jspray@redhat.com> on ceph-devel for this
information.

Signed-off-by: Ken Dreyer <kdreyer@redhat.com>

diff --git a/doc/cephfs/troubleshooting.rst b/doc/cephfs/troubleshooting.rst
index 554698c7074a0b344bad3725a1205078cf558387..0151843f0ce73217edf807b471d38d8e085da98e 100644 (file)
--- a/doc/cephfs/troubleshooting.rst
+++ b/doc/cephfs/troubleshooting.rst
@@ -2,6 +2,17 @@
  Troubleshooting
 =================
 
+Debugging ceph-fuse
+===================
+
+To get more debugging information from ceph-fuse, try running in the foreground
+with logging to the console (``-d``) and enabling client debug
+(``--debug-client=20``), enabling prints for each message sent
+(``--debug-ms=1``).
+
+If you suspect a potential monitor issue, enable monitor debugging as well
+(``--debug-monc=20``).
+
 
 Mount 5 Error
 =============