Module 'restful' has failed dependency: No module named 'pecan'

[root@mgmt ~]# ceph -s

  cluster:

    id:     173b6a80-8172-4830-a616-0ef2959500ed

    health: HEALTH_WARN

            Module 'restful' has failed dependency: No module named 'pecan'

            Slow OSD heartbeats on front (longest 1165.052ms)

            4 slow ops, oldest one blocked for 1195 sec, mon.mgmt has slow ops

 

  services:

    mon: 2 daemons, quorum mgmt,mon0 (age 45m)

    mgr: mgmt(active, since 40m)

    mds:  1 up:standby

    osd: 4 osds: 4 up (since 20m), 4 in (since 20m); 1 remapped pgs

 

  data:

    pools:   1 pools, 1 pgs

    objects: 0 objects, 0 B

    usage:   4.0 GiB used, 116 GiB / 120 GiB avail

    pgs:     1 active+clean

[해결책]

# pip3 install pecan werkzeug

# pip3 install pecan cherrypy werkzeug