[Gluster-devel] AFR: machine crash hangs other mounts or transport endpoint not connected

[Gerry Reno]

Gerry Reno wrote: 
> Krishna and Anand:
>
>    Hope these will help.  Here are my configs:
>
> ================================================
> ### file: glusterfs-server.vol
> ### GRP: this files goes on all storage bricks
> ##############################################
> ###  GlusterFS Server Volume Specification  ##
> ##############################################
>   #### CONFIG FILE RULES:
>   ### "#" is comment character.
>   ### - Config file is case sensitive
>   ### - Options within a volume block can be in any order.
>   ### - Spaces or tabs are used as delimitter within a line.
>   ### - Multiple values to options will be : delimitted.
>   ### - Each option should end within a line.
>   ### - Missing or commented fields will assume default values.
>   ### - Blank/commented lines are allowed.
>   ### - Sub-volumes should already be defined above before referring.
>
>   ### Export volume "brick" with the contents of "/home/export" 
> directory.
> volume brick
>  type storage/posix                      # POSIX FS translator
>  option directory /home/vmail/mailbrick  # Export this directory
> end-volume
>
>   ### Add network serving capability to above brick.
> volume server
>  type protocol/server
>  option transport-type tcp/server     # For TCP/IP transport
> # option ibv-send-work-request-size  131072
> # option ibv-send-work-request-count 64
> # option ibv-recv-work-request-size  131072
> # option ibv-recv-work-request-count 64
> # option transport-type ib-sdp/server  # For Infiniband transport
> # option transport-type ib-verbs/server # For ib-verbs transport
> # option bind-address  127.0.0.1    # Default is to listen on all 
> interfaces
>  option listen-port 6996              # Default is 6996
> # option client-volume-filename /etc/glusterfs/glusterfs-client.vol
>
>  subvolumes brick
> # NOTE: Access to any volume through protocol/server is denied by
> # default. You need to explicitly grant access through # "auth"
> # option.
> # option auth.ip.brick.allow  *              # Allow full access to 
> "brick" volume
> # option auth.ip.brick.allow  192.168.*      # Allow subnet access to 
> "brick" volume
> option auth.ip.brick.allow  127.0.0.1,192.168.1.220,192.168.1.221  # 
> Allow access to "brick" volume
> end-volume
> ================================================
>
> ================================================
> ### file: glusterfs-client.vol
> ### GRP: this file goes on every client node in cluster
> ##############################################
> ###  GlusterFS Client Volume Specification  ##
> ##############################################
>   #### CONFIG FILE RULES:
>   ### "#" is comment character.
>   ### - Config file is case sensitive
>   ### - Options within a volume block can be in any order.
>   ### - Spaces or tabs are used as delimitter within a line.
>   ### - Each option should end within a line.
>   ### - Missing or commented fields will assume default values.
>   ### - Blank/commented lines are allowed.
>   ### - Sub-volumes should already be defined above before referring.
>
>   ### Add client feature and declare local subvolume
> volume client-local
>  type    storage/posix
>  option  directory         /home/vmail/mailbrick
> end-volume
>
>   ### Add client feature and attach to remote subvolume
> volume client1
>  type    protocol/client
>  option  transport-type    tcp/client     # for TCP/IP transport
>  option  remote-host       192.168.1.220   # IP address of the remote 
> brick
>  option  remote-port       6996           # default server port is 6996
>  option  remote-subvolume  brick          # name of the remote volume
> end-volume
>
> volume client2
>  type    protocol/client
>  option  transport-type    tcp/client
>  option  remote-host       192.168.1.221
>  option  remote-port       6996
>  option  remote-subvolume  brick
> end-volume
>
>
> #volume bricks
> #  type cluster/unify
> #  subvolumes *
> #  option scheduler nufa
> #  # does this brick name must be in local server.vol
> #  option nufa.local-volume-name brick  # note 'brick' is singular
> #end-volume
>
>   ### Add automatic file replication (AFR) feature
> volume afr
>  type  cluster/afr
>  subvolumes  client1 client2
> #  option  replicate:*.html 2
> #  option  replicate:*.db 5
> ## ok, this would be RAID-1 on 2 nodes
> #  option  replicate:* 2
> ## so how would you say RAID-1 on all nodes? with * ?
> #  option  replicate *:2
> #  option  replicate client1,client2:2
> # option replicate is no longer supported:   
> http://www.mail-archive.com/gluster-devel@nongnu.org/msg02201.html
> # pattern-matching translator will be provided later in 1.4
> end-volume
>
>   ### Add writeback feature
> #volume writeback
> #  type performance/write-behind
> #  option aggregate-size 131072 # unit in bytes
> #  subvolumes client  #end-volume
>
>   ### Add readahead feature
> #volume readahead
> #  type performance/read-ahead
> #  option page-size 65536     # unit in bytes
> #  option page-count 16       # cache per file  = (page-count x 
> page-size)
> #  subvolumes writeback
> #end-volume
> ================================================
>
>
> Regards,
> Gerry
>
And here is how I mount the client (from /etc/fstab):
/usr/local/etc/glusterfs/glusterfs-client.vol   /home/vmail/mailstore   
glusterfs       defaults        0 0

Regards,
Gerry