Re: To check RBD cache enabled

Josy <josy@xxxxxxxxxxxxxxxxxxxxx> · Wed, 18 Oct 2017 02:59:06 +0530



    Thanks for the reply.
    I added rbd_non_blocking_aio = false in ceph.conf and pushed the
      admin file to all nodes.
    -----

      [client]

      admin socket = /var/run/ceph/$cluster-$type.$id.$pid.$cctid.asok

      log file = /var/log/ceph/client.log

      debug rbd = 20

      debug librbd = 20

      rbd_non_blocking_aio = false

      ------
    

    However the config show command still shows it as true. 

      -----------

      [cephuser@ceph-las-admin-a1 ceph-cluster]$ sudo ceph
      --admin-daemon /var/run/ceph/ceph-mgr.ceph-las-admin-a1.asok
      config show | grep "rbd_non_blocking_aio"

          "rbd_non_blocking_aio": "true",

      -----------

      
      Did I miss something ? 

    
    On 18-10-2017 01:22, Jean-Charles Lopez
      wrote:

    
      Hi 
      

      syntax uses the admin socket file : ceph
        --admin-daemon /var/run/ceph/$cluster-$type.$id.$pid.$cctid.asok
        config get rbd_cache
      

      Should be
        /var/run/ceph/ceph.client.admin.$pid.$cctid.asok if your
        connection is using client.admin to connect to the cluster and
        your cluster name is set to the default of ceph. But obviously
        can’t know from here the PID and the CCTID you will have to
        identify.
      

      You can actually do a ls /var/run/ceph to find the
        correct admin socket file
      

      Regards

        
              JC Lopez

                    Senior Technical Instructor, Global Storage
                    Consulting Practice

                    Red Hat, Inc.

                    jelopez@xxxxxxxxxx

                    +1 408-680-6959
            
          
            On Oct 17, 2017, at 12:50, Josy <josy@xxxxxxxxxxxxxxxxxxxxx>
              wrote:
            

                Hi,
                

                I am following this article :
                http://ceph.com/geen-categorie/ceph-validate-that-the-rbd-cache-is-active/
                I have enabled this flag in ceph.conf
                [client]
admin socket = /var/run/ceph/$cluster-$type.$id.$pid.$cctid.asok
log file = /var/log/ceph/
                

                But the command to show the conf is not
                  working : 

                
                [cephuser@ceph-las-admin-a1 ceph-cluster]$
                  sudo ceph --admin-daemon 
                  /etc/ceph/ceph.client.admin.keyring config show

                  admin_socket: exception getting command descriptions:
                  [Errno 111] Connection refused

                
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