Re: How to enable shared_storage?

Jiffin Tony Thottan <jthottan@xxxxxxxxxx> · Sun, 20 Nov 2016 18:25:51 +0530



    Did u install rpm or directly from sources. Can u check whether
      following script is present?

    
/var/lib/glusterd/hooks/1/set/post/S32gluster_enable_shared_storage.sh

    
    --

    
    Jiffin

    
    On 20/11/16 13:33, Alexandr Porunov
      wrote:

    
        To enable shared storage I used next command:
        # gluster volume set all cluster.enable-shared-storage
          enable
        

        But it seems that it doesn't create gluster_shared_storage
          automatically.
        

        # gluster volume status gluster_shared_storage
        Volume gluster_shared_storage does not exist
        

        Do I need to manually create a volume
          "gluster_shared_storage"? Do I need to manually create a
          folder "/var/run/gluster/shared_storage"? Do I need to
          manually mount it? Or something I don't need to do?
        

        If I use 6 cluster nodes and I need to have a shared
          storage on all of them then how to create a shared storage? 
        It says that it have to be with replication 2 or
          replication 3. But if we use shared storage on all of 6 nodes
          then we have only 2 ways to create a volume:
        1. Use replication 6
        2. Use replication 3 with distribution.
        

        Which way I need to use?
        

        Sincerely,
        Alexandr
      
      
        On Sun, Nov 20, 2016 at 9:07 AM, Jiffin
          Tony Thottan <jthottan@xxxxxxxxxx>
          wrote:

          
                On
                  19/11/16 21:47, Alexandr Porunov wrote:

                
                    Unfortunately I haven't this log file but I
                      have 'run-gluster-shared_storage.log' and it
                      has errors I don't know why.
                    

                    Here is the content of the
                      'run-gluster-shared_storage.log':
                    

               Make sure shared storage is up and running using
              "gluster volume status  gluster_shared_storage"

              
              May be the issue is related to firewalld or iptables. Try
              it after disabling them.

              
              --

              
              Jiffin

              
                        [2016-11-19 10:37:01.581737]
                            I [MSGID: 100030] [glusterfsd.c:2454:main]
                            0-/usr/sbin/glusterfs: Started running
                            /usr/sbin/glusterfs version 3.8.5 (args:
                            /usr/sbin/glusterfs
                            --volfile-server=127.0.0.1
                            --volfile-id=gluster_shared_storage
                            /run/gluster/shared_storage)
                        [2016-11-19 10:37:01.641836]
                            I [MSGID: 101190] [event-epoll.c:628:event_dispatch_epoll_worker]
                            0-epoll: Started thread with index 1
                        [2016-11-19 10:37:01.642311]
                            E [glusterfsd-mgmt.c:1586:mgmt_getspec_cbk]
                            0-glusterfs: failed to get the 'volume file'
                            from server
                        [2016-11-19 10:37:01.642340]
                            E [glusterfsd-mgmt.c:1686:mgmt_getspec_cbk]
                            0-mgmt: failed to fetch volume file
                            (key:gluster_shared_storage)
                        [2016-11-19 10:37:01.642592]
                            W [glusterfsd.c:1327:cleanup_and_exit]
                            (-->/lib64/libgfrpc.so.0(rpc_clnt_handle_reply+0x90)
                            [0x7f95cd309770]
                            -->/usr/sbin/glusterfs(mgmt_getspec_cbk+0x536)
                            [0x7f95cda3afc6] -->/usr/sbin/glusterfs(cleanup_and_exit+0x6b)
                            [0x7f95cda34b4b] ) 0-: received signum (0),
                            shutting down
                        [2016-11-19 10:37:01.642638]
                            I [fuse-bridge.c:5793:fini] 0-fuse:
                            Unmounting '/run/gluster/shared_storage'.
                        [2016-11-19 10:37:18.798787]
                            I [MSGID: 100030] [glusterfsd.c:2454:main]
                            0-/usr/sbin/glusterfs: Started running
                            /usr/sbin/glusterfs version 3.8.5 (args:
                            /usr/sbin/glusterfs
                            --volfile-server=127.0.0.1
                            --volfile-id=gluster_shared_storage
                            /run/gluster/shared_storage)
                        [2016-11-19 10:37:18.813011]
                            I [MSGID: 101190] [event-epoll.c:628:event_dispatch_epoll_worker]
                            0-epoll: Started thread with index 1
                        [2016-11-19 10:37:18.813363]
                            E [glusterfsd-mgmt.c:1586:mgmt_getspec_cbk]
                            0-glusterfs: failed to get the 'volume file'
                            from server
                        [2016-11-19 10:37:18.813386]
                            E [glusterfsd-mgmt.c:1686:mgmt_getspec_cbk]
                            0-mgmt: failed to fetch volume file
                            (key:gluster_shared_storage)
                        [2016-11-19 10:37:18.813592]
                            W [glusterfsd.c:1327:cleanup_and_exit]
                            (-->/lib64/libgfrpc.so.0(rpc_clnt_handle_reply+0x90)
                            [0x7f96ba4c7770]
                            -->/usr/sbin/glusterfs(mgmt_getspec_cbk+0x536)
                            [0x7f96babf8fc6] -->/usr/sbin/glusterfs(cleanup_and_exit+0x6b)
                            [0x7f96babf2b4b] ) 0-: received signum (0),
                            shutting down                              
                                                                       
                                               
                        [2016-11-19 10:37:18.813633]
                            I [fuse-bridge.c:5793:fini] 0-fuse:
                            Unmounting '/run/gluster/shared_storage'.  
                                                    
                        [2016-11-19 10:40:33.115685]
                            I [MSGID: 100030] [glusterfsd.c:2454:main]
                            0-/usr/sbin/glusterfs: Started running
                            /usr/sbin/glusterfs version 3.8.5 (args:
                            /usr/sbin/glusterfs
                            --volfile-server=127.0.0.1
                            --volfile-id=gluster_shared_storage
                            /run/gluster/shared_storage)   
                        [2016-11-19 10:40:33.124218]
                            I [MSGID: 101190] [event-epoll.c:628:event_dispatch_epoll_worker]
                            0-epoll: Started thread with index 1  
                        [2016-11-19 10:40:33.124722]
                            E [glusterfsd-mgmt.c:1586:mgmt_getspec_cbk]
                            0-glusterfs: failed to get the 'volume file'
                            from server    
                        [2016-11-19 10:40:33.124738]
                            E [glusterfsd-mgmt.c:1686:mgmt_getspec_cbk]
                            0-mgmt: failed to fetch volume file
                            (key:gluster_shared_storage)                
                                                                       
                                                                       
                        [2016-11-19 10:40:33.124869]
                            W [glusterfsd.c:1327:cleanup_and_exit]
                            (-->/lib64/libgfrpc.so.0(rpc_clnt_handle_reply+0x90)
                            [0x7f23576a9770]
                            -->/usr/sbin/glusterfs(mgmt_getspec_cbk+0x536)
                            [0x7f2357ddafc6] -->/usr/sbin/glusterfs(cleanup_and_exit+0x6b)
                            [0x7f2357dd4b4b] ) 0-: received signum (0),
                            shutting down                              
                                                                       
                                               
                        [2016-11-19 10:40:33.124896]
                            I [fuse-bridge.c:5793:fini] 0-fuse:
                            Unmounting '/run/gluster/shared_storage'.  
                                                    
                        [2016-11-19 10:44:36.029838]
                            I [MSGID: 100030] [glusterfsd.c:2454:main]
                            0-/usr/sbin/glusterfs: Started running
                            /usr/sbin/glusterfs version 3.8.5 (args:
                            /usr/sbin/glusterfs
                            --volfile-server=127.0.0.1
                            --volfile-id=gluster_shared_storage
                            /run/gluster/shared_storage)   
                        [2016-11-19 10:44:36.043705]
                            I [MSGID: 101190] [event-epoll.c:628:event_dispatch_epoll_worker]
                            0-epoll: Started thread with index 1  
                        [2016-11-19 10:44:36.044082]
                            E [glusterfsd-mgmt.c:1586:mgmt_getspec_cbk]
                            0-glusterfs: failed to get the 'volume file'
                            from server    
                        [2016-11-19 10:44:36.044106]
                            E [glusterfsd-mgmt.c:1686:mgmt_getspec_cbk]
                            0-mgmt: failed to fetch volume file
                            (key:gluster_shared_storage)                
                                                                       
                                                                       
                        [2016-11-19 10:44:36.044302]
                            W [glusterfsd.c:1327:cleanup_and_exit]
                            (-->/lib64/libgfrpc.so.0(rpc_clnt_handle_reply+0x90)
                            [0x7fbd9dced770]
                            -->/usr/sbin/glusterfs(mgmt_getspec_cbk+0x536)
                            [0x7fbd9e41efc6] -->/usr/sbin/glusterfs(cleanup_and_exit+0x6b)
                            [0x7fbd9e418b4b] ) 0-: received signum (0),
                            shutting down                              
                                                                       
                                               
                        [2016-11-19 10:44:36.044356]
                            I [fuse-bridge.c:5793:fini] 0-fuse:
                            Unmounting '/run/gluster/shared_storage'. 
                      
                      
                        Can you help me to figure out what I am
                          doing wrong?
                        

                        Sincerely,
                        Alexandr
                      
                    
                      On Sat, Nov 19, 2016 at
                        3:18 PM, Saravanakumar Arumugam <sarumuga@xxxxxxxxxx>
                        wrote:

                        
                              On
                                11/19/2016 04:13 PM, Alexandr Porunov
                                wrote:

                              
                                It still doesn't work..
                                  

                                  I have created that dir:
                                  # mkdir -p
                                    /var/run/gluster/shared_storage

                                  
                                  and then:
                                  
                                    # mount -t glusterfs
                                      127.0.0.1:gluster_shared_storage
                                      /var/run/gluster/shared_storage
                                    Mount failed. Please check the
                                      log file for more details.
                                  
                                  
                                  Where to find a proper file to
                                    read logs? Because
                                    "/var/log/glusterfs/" has a lot of
                                    log files.
                                
                              
                             You can  find mount logs like this
                            :  "directory_mounted".log inside
                            /var/log/glusterfs

                            There is some issue in your setup...check
                            this log and share it here.

                              
                                  Sincerely,
                                  Alexandr
                                
                                
                                  On Sat, Nov
                                    19, 2016 at 11:16 AM, Saravanakumar
                                    Arumugam <sarumuga@xxxxxxxxxx>
                                    wrote:

                                    
                                        On 11/19/2016 01:39 AM, Alexandr
                                        Porunov wrote:

                                        
                                          Hello,

                                          
                                          I try to enable shared storage
                                          for Geo-Replication but I am
                                          not sure that I do it
                                          properly.

                                          
                                          Here is what I do:

                                          # gluster volume set all
                                          cluster.enable-shared-storage
                                          enable

                                          volume set: success

                                          
                                          # mount -t glusterfs
                                          127.0.0.1:gluster_shared_storage
                                          /var/run/gluster/shared_storage

                                          ERROR: Mount point does not
                                          exist

                                          Please specify a mount point

                                          Usage:

                                          man 8 /sbin/mount.glusterfs

                                          
                                       This error means
                                      /var/run/gluster/shared_storage
                                      directory does NOT exists.

                                      
                                      But, running the  command (gluster
                                      volume set all
                                      cluster.enable-shared-storage
                                      enable)

                                      should carry out the mounting
                                      automatically. (so, there is no
                                      need to manually mount).

                                      
                                      Check after running "gluster
                                      volume set all
                                      cluster.enable-shared-storage
                                      enable"

                                          1. gluster volume info

                                           2. glusterfs process started
                                      with volfile-id as
                                      gluster_shared_storage.

                                      
                                      Thanks,

                                      Saravana

                                      
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