Re: split-brain sanlock ids automation

Ravishankar N <ravishankar@xxxxxxxxxx> · Tue, 26 May 2015 09:55:53 +0530



    On 05/26/2015 08:48 AM, maokx@xxxxxxxx
      wrote:

    
      Hi all:
      I want to
            solve the problem of ids spit-brain automation.
      This
            problem is caused by network interruption.
      My hand
            is such a solution:
      find /data/data1/ -samefile /data/data1/3b9e1af1-f452-4ed4-9cbf-a38d8f7a395e/dom_md/ids
            -print -delete
      The
            problem is caused by sanlock,for example:sanlock add_lockspace -s
          lockspace1:1:/dom_md/ids :0
      Now I
            want to automation to solve this problem
    
    
    You can use the the gluster CLI commands
      (glusterfs 3.6 onwards) (or) the get/setfattr commands from the
      mount (glusterfs 3.7 onwards) to heal files that are in
      split-brain. Usage can be found at
https://github.com/gluster/glusterfs/blob/master/doc/features/heal-info-and-split-brain-resolution.md

      If you are using ovirt (and hence the sanlock file) with gluster,
      you can achieve better split-brain protection using replica 3 
      volumes with cluster.quorum-type set to auto.

      
      Hope that helps,

      Ravi

      
      my log
              is:
      
        [root@www ~]# tail -f /var/log/glusterfs/rhev-data-center-mnt-glusterSD-192.168.7.246\:_pool01.log 
        [2015-05-25 06:37:33.613126] W [page.c:991:__ioc_page_error] 0-pool01-io-cache: page error for page = 0x7f4b9801d2d0 & waitq = 0x7f4b9801dd70
        [2015-05-25 06:37:33.613157] W [fuse-bridge.c:2089:fuse_readv_cbk] 0-glusterfs-fuse: 246963: READ => -1 (Input/output error)
        [2015-05-25 06:37:37.422720] E [afr-self-heal-common.c:197:afr_sh_print_split_brain_log] 0-pool01-replicate-0: Unable to self-heal contents of '/3b9e1af1-f452-4ed4-9cbf-a38d8f7a395e/dom_md/ids' (possible split-brain). Please delete the file from all but the preferred subvolume.- Pending matrix:  [ [ 0 4 ] [ 4 0 ] ]
        [2015-05-25 06:37:37.422981] E [afr-self-heal-common.c:2212:afr_self_heal_completion_cbk] 0-pool01-replicate-0: background  data self-heal failed on /3b9e1af1-f452-4ed4-9cbf-a38d8f7a395e/dom_md/ids
        [2015-05-25 06:37:37.423231] W [page.c:991:__ioc_page_error] 0-pool01-io-cache: page error for page = 0x7f4b9800c520 & waitq = 0x7f4b9801aff0
        [2015-05-25 06:37:37.423259] W [fuse-bridge.c:2089:fuse_readv_cbk] 0-glusterfs-fuse: 246978: READ => -1 (Input/output error)
        [2015-05-25 06:37:43.650389] E [afr-self-heal-common.c:197:afr_sh_print_split_brain_log] 0-pool01-replicate-0: Unable to self-heal contents of '/3b9e1af1-f452-4ed4-9cbf-a38d8f7a395e/dom_md/ids' (possible split-brain). Please delete the file from all but the preferred subvolume.- Pending matrix:  [ [ 0 4 ] [ 4 0 ] ]
        [2015-05-25 06:37:43.650740] E [afr-self-heal-common.c:2212:afr_self_heal_completion_cbk] 0-pool01-replicate-0: background  data self-heal failed on /3b9e1af1-f452-4ed4-9cbf-a38d8f7a395e/dom_md/ids
        [2015-05-25 06:37:43.650994] W [page.c:991:__ioc_page_error] 0-pool01-io-cache: page error for page = 0x7f4b9802adc0 & waitq = 0x7f4b98017e50
        [2015-05-25 06:37:43.651021] W [fuse-bridge.c:2089:fuse_readv_cbk] 0-glusterfs-fuse: 246997: READ => -1 (Input/output error)
         
         
        [2015-05-25 06:37:50.931622] E [afr-self-heal-common.c:197:afr_sh_print_split_brain_log] 0-pool01-replicate-0: Unable to self-heal contents of '/3b9e1af1-f452-4ed4-9cbf-a38d8f7a395e/dom_md/ids' (possible split-brain). Please delete the file from all but the preferred subvolume.- Pending matrix:  [ [ 0 4 ] [ 4 0 ] ]
        [2015-05-25 06:37:50.931906] E [afr-self-heal-common.c:2212:afr_self_heal_completion_cbk] 0-pool01-replicate-0: background  data self-heal failed on /3b9e1af1-f452-4ed4-9cbf-a38d8f7a395e/dom_md/ids
        [2015-05-25 06:37:50.932211] W [page.c:991:__ioc_page_error] 0-pool01-io-cache: page error for page = 0x7f4b980211e0 & waitq = 0x7f4b980065e0
        [2015-05-25 06:37:50.932240] W [fuse-bridge.c:2089:fuse_readv_cbk] 0-glusterfs-fuse: 247012: READ => -1 (Input/output error)
         
         
        [2015-05-25 06:37:53.688445] E [afr-self-heal-common.c:197:afr_sh_print_split_brain_log] 0-pool01-replicate-0: Unable to self-heal contents of '/3b9e1af1-f452-4ed4-9cbf-a38d8f7a395e/dom_md/ids' (possible split-brain). Please delete the file from all but the preferred subvolume.- Pending matrix:  [ [ 0 4 ] [ 4 0 ] ]
        [2015-05-25 06:37:53.688821] E [afr-self-heal-common.c:2212:afr_self_heal_completion_cbk] 0-pool01-replicate-0: background  data self-heal failed on /3b9e1af1-f452-4ed4-9cbf-a38d8f7a395e/dom_md/ids
        [2015-05-25 06:37:53.689128] W [page.c:991:__ioc_page_error] 0-pool01-io-cache: page error for page = 0x7f4b9800acb0 & waitq = 0x7f4b9802b4d0
        [2015-05-25 06:37:53.689152] W [fuse-bridge.c:2089:fuse_readv_cbk] 0-glusterfs-fuse: 247031: READ => -1 (Input/output error)
        
      I am such a environment:
      
        
            maokx@xxxxxxxx
          
        
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