Re: Debian Jessie (8) qemu-kvm VM and glusterfs as backend storage

Joe Julian <joe@xxxxxxxxxxxxxxxx> · Fri, 15 May 2015 09:35:31 -0700



    It sounds like a network problem to me. Verify with iperf between
    your client and each server.

    
    On 05/15/2015 09:01 AM, Roman wrote:

    
      Actually its pretty random. Now got installed
        without any problems using 3.5.3 .
        don't know what to do. and its only with Debian 8.
      
      
        2015-05-15 18:53 GMT+03:00 Roman <romeo.r@xxxxxxxxx>:

          
            Hey,
              

              Seems like the problem exists.
              

              I've got 4 instances of proxmox. I've started to
                update glusterfs some day to the latest (3.5.3) but I've
                done the server side and forgot about client side. One
                of proxmox instances was replaced today and installed
                the 3.5.3 client. So the problem is between 3.5.3 server
                and 3.5.3 client. then I've updated glusterfs on other
                proxmox node and had same problem with d8 install.
              

              There is just no go with debian 8 install and qcow
                file format. If I use raw file format for kvm,
                installation takes ages.
              

              Need fix asap, as this is you stable gluster
                version... we are running this on in production.
            
            
                  2015-05-15 16:18 GMT+03:00
                    Roman <romeo.r@xxxxxxxxx>:

                    
                      Hi,
                        

                        Are there any issues with debian8 and
                          glusterfs?
                        

                          Got this setup:
                          1. promox 3.4
                          2. gluster 3.5.3 both server and client
                            (I use gluster repo on proxmox server)
                          3. HA gluster volume
                          

                          What I'm trying to do:
                          task: create a VM with debian 8, using
                            glusterfs HA volume over 1G network as a
                            place for VM disk file
                          result: 
                          a) using raw file format - installation
                            process takes ages (6 hours), but when
                            finished, VM looks weird: packages
                            installations go slowly (downloads fast, but
                            installs slow). Same time getting files over
                            internet gives me usual speed (around
                            96MB/s, yes, I'm on 1G connection)
                          b) Using qcow format installation process
                            randomly stops at random step: getting
                            packages from the repository or installing
                            packages after donwnloaded them ...
                          

                          c) If i convert VM  with RAW file format
                            to template and then create a VM using this
                            template, but selecting qcow format, VM runs
                            smoothly.
                          

                          Meanwhile, there are lots of VMs on the
                            same gluster storage (debian7, centos6,
                            ubuntu) running without any problems.

                          
                          I've started topic on proxmox forum, but
                            devs saying, it should be upto glusterfs :(
                          
                            
                            Any advice or experiences? 
                            

                            PS
                            installing deb8 on local storage goes
                              well, without any problems.
                            installing deb7 on the same setup (same
                              VM even, just another virtual driver) is
                              ok.
                            -- 

                                Best regards,

                                  Roman.
                              
                        
              -- 

                  Best regards,

                    Roman.
                
          
        -- 

        Best regards,

          Roman.
      
      
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