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Re: [Gluster-devel] Trying to run a mailcluster


From: Guido Smit
Subject: Re: [Gluster-devel] Trying to run a mailcluster
Date: Fri, 15 Feb 2008 16:51:05 +0100
User-agent: Thunderbird 2.0.0.9 (Windows/20071031)

Only 1 machine is server and client, the rest is server or client. The client share is under /mail

After the log, there is nothing more, I had to kill the processes because all services were hanging.


Anand Avati wrote:
Guido,
do you share the same machines as server and client? is your mount point directly under / ?

avati

2008/2/15, Guido Smit <address@hidden <mailto:address@hidden>>:

    Hi all,

    I'm trying to set up a mailcluster for a while now, using glusterfs as
    filesystem. I've installed fuse2.7.2glfs8, glusterfs-tla662 on Centos5

    As for now, running on 3 servers. 1 configured as dedicated
    server, 1 as
    client only, 1 as server and client.

    Normal file operations are doing great, speed can be a little faster,
    but overall I'm happy with it. When starting Dovecot, the following
    error shows up (1st line repeats for every client that logs in):

    2008-02-15 14:27:43 E [afr.c:3730:afr_lk_cbk] afr:
    (path=/comlog.nl/xxxxxxxxx/Maildir/dovecot.index.log child=pop2-mail)
    op_ret=-1 op_errno=77
    2008-02-15 14:30:52 C [client-protocol.c:222:call_bail] pop2-mail-ns:
    bailing transport
    2008-02-15 14:30:52 C [client-protocol.c:222:call_bail] pop2-mail:
    bailing transport
    2008-02-15 14:32:40 C [client-protocol.c:222:call_bail] pop2-mail-ns:
    bailing transport

    Everything stalls, no ls, no df nothing. I have to kill all dovecot
    processes, kill glusterfs and glusterfsd
    I've tried with an empty namespace on both servers, but it didn't
    resolve this.

    I really need some advise here.

    My configs:
    glusterfs-server.vol

    volume pop1-mail-ns
            type storage/posix
            option directory /home/namespace
    end-volume

    volume pop1-mail-ds
            type storage/posix
            option directory /home/export
    end-volume

    volume pop1-mail
            type features/posix-locks
            option mandatory on                     # enables mandatory
    locking on all files
            subvolumes pop1-mail-ds
    end-volume

    volume pop2-mail
            type protocol/client
            option transport-type tcp/client
            option remote-host 62.59.252.42 <http://62.59.252.42>
            option remote-subvolume pop2-mail-ds
    end-volume

    volume pop2-mail-ns
            type protocol/client
            option transport-type tcp/client
            option remote-host 62.59.252.42 <http://62.59.252.42>
            option remote-subvolume pop2-mail-ns
    end-volume

    volume afr
            type cluster/afr
            subvolumes pop1-mail pop2-mail
    end-volume

    volume afr-ns
           type cluster/afr
           subvolumes pop1-mail-ns pop2-mail-ns
    end-volume

    volume unify
            type cluster/unify
            option namespace afr-ns
            option scheduler rr
            subvolumes afr
    end-volume

    volume mail-ds-readahead
            type performance/read-ahead
            option page-size 128kB                  # 256KB is the default
    option
            option page-count 4                     # 2 is default option
            option force-atime-update off           # default is off
            subvolumes unify
    end-volume

    volume mail-ds-writebehind
            type performance/write-behind
            option aggregate-size 1MB               # default is 0bytes
            option flush-behind on                  # default is 'off'
            subvolumes mail-ds-readahead
    end-volume

    volume mail-ds
            type performance/io-threads
            option thread-count 4                   # deault is 1
            option cache-size 32MB                  #64MB
            subvolumes mail-ds-writebehind
    end-volume

    volume server
            type protocol/server
            option transport-type tcp/server
            subvolumes pop1-mail-ds pop1-mail-ns mail-ds
            option auth.ip.pop1-mail-ds.allow 62.59.252.*,127.0.0.1
    <http://127.0.0.1>
            option auth.ip.pop1-mail-ns.allow 62.59.252.*,127.0.0.1
    <http://127.0.0.1>
            option auth.ip.mail-ds.allow 62.59.252.*,127.0.0.1
    <http://127.0.0.1>
    end-volume


    glusterfs-client.vol:

    volume mailspool
            type protocol/client
            option transport-type tcp/client
            option remote-host 62.59.252.41 <http://62.59.252.41>
            option remote-subvolume mail-ds
    end-volume

    volume readahead
            type performance/read-ahead
            option page-size 128kB
            option page-count 16
            option force-atime-update off # default is off
            subvolumes mailspool
    end-volume

    volume writeback
            type performance/write-behind
            option aggregate-size 1MB
            option flush-behind on      # default is 'off'
            subvolumes readahead
    end-volume

    volume iothreads
            type performance/io-threads
            option thread-count 4  # deault is 1
            option cache-size 32MB #64MB
            subvolumes writeback
    end-volume

    volume io-cache
            type performance/io-cache
            option cache-size 128MB             # default is 32MB
            option page-size 1MB               #128KB is default option
            option priority *:0 # default is '*:0'
            option force-revalidate-timeout 2  # default is 1
            subvolumes iothreads
    end-volume



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--
If I traveled to the end of the rainbow
As Dame Fortune did intend,
Murphy would be there to tell me
The pot's at the other end.
------------------------------------------------------------------------

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Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.20.5/1279 - Release Date: 2/14/2008 6:35 PM

--
Met vriendelijke groet,

Guido Smit
ComLog B.V.

Televisieweg 133
1322 BE Almere
T. 036 5470500
F. 036 5470481

No virus found in this outgoing message.
Checked by AVG Free Edition.
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