[Gluster-users] libgfapi failover problem on replica bricks

Roman romeo.r at gmail.com
Thu Aug 7 06:12:33 UTC 2014


Well, was not much to test. After I downed the first server again (Both
servers were up for one hour, so it is enough to sync, if it would ever
start) I've got the segmentation fault on both VM-s.

So to me it seems like issue with healing the stripped files. It just never
starts and I don't really know why.

what do I do:
1. create VM on replicated volume with stripped disk.
2. wait for zero traffic on ports of the switch, where my gluster servers
are
3. bring one port down / stop glusterd (and kill all gluster* processes) /
reboot one server
4. generate files on VM from /dev/zero (5-6 files of 100-500 MB size)
5. bring the downed server up
6. waiting for the sync, that seems like never start or it starts on wrong
server (Sometimes I do really see some traffic for some time, about 5-10
minuts around 15 Mbps/sec on the server that was not down, which means: the
server1 was down, but after it comes up, there is traffic between server2
and Proxmox VE host)
7. waiting a bit more to be sure
8. bring the other server down
9. Segfault.


2014-08-07 9:03 GMT+03:00 Roman <romeo.r at gmail.com>:

> File size increases because of me :) I generate files on VM from /dev/zero
> during the outage of one server. Then I bring up the downed server and it
> seems files never sync. I'll keep on testing today. Can't read much from
> logs also :(. This morning both VM-s (one on volume with self-healing and
> other on volume without it) survived second server outage (first server was
> down yesterday), while file sizes are different, VM-s ran without problems.
> But I've restarted them before bringing the second gluster server down.
>
> So I'm a bit lost at this moment. I'll try to keep my testings ordered and
> write here, what will happen.
>
>
> 2014-08-07 8:29 GMT+03:00 Pranith Kumar Karampuri <pkarampu at redhat.com>:
>
>
>> On 08/07/2014 10:46 AM, Roman wrote:
>>
>> yes, they do.
>>
>>  getfattr: Removing leading '/' from absolute path names
>> # file: exports/pve1/1T/images/125/vm-125-disk-1.qcow2
>> trusted.afr.HA-MED-PVE1-1T-client-0=0x000000000000000000000000
>> trusted.afr.HA-MED-PVE1-1T-client-1=0x000000000000000000000000
>> trusted.gfid=0x207984df4e6e4ef983f285ed0c4ce8fa
>>
>>  root at stor1:~# du -sh /exports/pve1/1T/images/125/vm-125-disk-1.qcow2
>> 1.6G    /exports/pve1/1T/images/125/vm-125-disk-1.qcow2
>> root at stor1:~# md5sum /exports/pve1/1T/images/125/vm-125-disk-1.qcow2
>> c117d73c9f8a2e09ef13da31f7225fa6
>>  /exports/pve1/1T/images/125/vm-125-disk-1.qcow2
>> root at stor1:~# du -sh /exports/pve1/1T/images/125/vm-125-disk-1.qcow2
>> 1.6G    /exports/pve1/1T/images/125/vm-125-disk-1.qcow2
>>
>>
>>
>>  root at stor2:~# getfattr -d -m. -e hex
>> /exports/pve1/1T/images/125/vm-125-disk-1.qcow2
>> getfattr: Removing leading '/' from absolute path names
>> # file: exports/pve1/1T/images/125/vm-125-disk-1.qcow2
>> trusted.afr.HA-MED-PVE1-1T-client-0=0x000000000000000000000000
>> trusted.afr.HA-MED-PVE1-1T-client-1=0x000000000000000000000000
>> trusted.gfid=0x207984df4e6e4ef983f285ed0c4ce8fa
>>
>>  root at stor2:~# md5sum /exports/pve1/1T/images/125/vm-125-disk-1.qcow2
>> c117d73c9f8a2e09ef13da31f7225fa6
>>  /exports/pve1/1T/images/125/vm-125-disk-1.qcow2
>> root at stor2:~# du -sh /exports/pve1/1T/images/125/vm-125-disk-1.qcow2
>> 2.6G    /exports/pve1/1T/images/125/vm-125-disk-1.qcow2
>>
>> I think the files are differing in size because of the sparse file
>> healing issue. Could you raise a bug with steps to re-create this issue
>> where after healing size of the file is increasing?
>>
>> Pranith
>>
>>
>>
>>
>>  2014-08-06 12:49 GMT+03:00 Humble Chirammal <hchiramm at redhat.com>:
>>
>>>
>>>
>>>
>>> ----- Original Message -----
>>> | From: "Pranith Kumar Karampuri" <pkarampu at redhat.com>
>>> | To: "Roman" <romeo.r at gmail.com>
>>> | Cc: gluster-users at gluster.org, "Niels de Vos" <ndevos at redhat.com>,
>>> "Humble Chirammal" <hchiramm at redhat.com>
>>> | Sent: Wednesday, August 6, 2014 12:09:57 PM
>>> | Subject: Re: [Gluster-users] libgfapi failover problem on replica
>>> bricks
>>> |
>>> | Roman,
>>> |      The file went into split-brain. I think we should do these tests
>>> | with 3.5.2. Where monitoring the heals is easier. Let me also come up
>>> | with a document about how to do this testing you are trying to do.
>>> |
>>> | Humble/Niels,
>>> |      Do we have debs available for 3.5.2? In 3.5.1 there was packaging
>>> | issue where /usr/bin/glfsheal is not packaged along with the deb. I
>>> | think that should be fixed now as well?
>>> |
>>>  Pranith,
>>>
>>> The 3.5.2 packages for debian is not available yet. We are co-ordinating
>>> internally to get it processed.
>>> I will update the list once its available.
>>>
>>> --Humble
>>> |
>>> | On 08/06/2014 11:52 AM, Roman wrote:
>>> | > good morning,
>>> | >
>>> | > root at stor1:~# getfattr -d -m. -e hex
>>> | > /exports/fast-test/150G/images/127/vm-127-disk-1.qcow2
>>> | > getfattr: Removing leading '/' from absolute path names
>>> | > # file: exports/fast-test/150G/images/127/vm-127-disk-1.qcow2
>>> | > trusted.afr.HA-fast-150G-PVE1-client-0=0x000000000000000000000000
>>> | > trusted.afr.HA-fast-150G-PVE1-client-1=0x000001320000000000000000
>>> | > trusted.gfid=0x23c79523075a4158bea38078da570449
>>> | >
>>> | > getfattr: Removing leading '/' from absolute path names
>>> | > # file: exports/fast-test/150G/images/127/vm-127-disk-1.qcow2
>>> | > trusted.afr.HA-fast-150G-PVE1-client-0=0x000000040000000000000000
>>> | > trusted.afr.HA-fast-150G-PVE1-client-1=0x000000000000000000000000
>>> | > trusted.gfid=0x23c79523075a4158bea38078da570449
>>> | >
>>> | >
>>> | >
>>> | > 2014-08-06 9:20 GMT+03:00 Pranith Kumar Karampuri <
>>> pkarampu at redhat.com
>>>  | > <mailto:pkarampu at redhat.com>>:
>>> | >
>>> | >
>>> | >     On 08/06/2014 11:30 AM, Roman wrote:
>>> | >>     Also, this time files are not the same!
>>> | >>
>>> | >>     root at stor1:~# md5sum
>>> | >>     /exports/fast-test/150G/images/127/vm-127-disk-1.qcow2
>>> | >>     32411360c53116b96a059f17306caeda
>>> | >>      /exports/fast-test/150G/images/127/vm-127-disk-1.qcow2
>>> | >>
>>> | >>     root at stor2:~# md5sum
>>> | >>     /exports/fast-test/150G/images/127/vm-127-disk-1.qcow2
>>> | >>     65b8a6031bcb6f5fb3a11cb1e8b1c9c9
>>> | >>      /exports/fast-test/150G/images/127/vm-127-disk-1.qcow2
>>> | >     What is the getfattr output?
>>> | >
>>> | >     Pranith
>>> | >
>>> | >>
>>> | >>
>>> | >>     2014-08-05 16:33 GMT+03:00 Roman <romeo.r at gmail.com
>>>  | >>     <mailto:romeo.r at gmail.com>>:
>>> | >>
>>> | >>         Nope, it is not working. But this time it went a bit other
>>> way
>>> | >>
>>> | >>         root at gluster-client:~# dmesg
>>> | >>         Segmentation fault
>>> | >>
>>> | >>
>>> | >>         I was not able even to start the VM after I done the tests
>>> | >>
>>> | >>         Could not read qcow2 header: Operation not permitted
>>> | >>
>>> | >>         And it seems, it never starts to sync files after first
>>> | >>         disconnect. VM survives first disconnect, but not second (I
>>> | >>         waited around 30 minutes). Also, I've
>>> | >>         got network.ping-timeout: 2 in volume settings, but logs
>>> | >>         react on first disconnect around 30 seconds. Second was
>>> | >>         faster, 2 seconds.
>>> | >>
>>> | >>         Reaction was different also:
>>> | >>
>>> | >>         slower one:
>>> | >>         [2014-08-05 13:26:19.558435] W [socket.c:514:__socket_rwv]
>>> | >>         0-glusterfs: readv failed (Connection timed out)
>>> | >>         [2014-08-05 13:26:19.558485] W
>>> | >>         [socket.c:1962:__socket_proto_state_machine] 0-glusterfs:
>>> | >>         reading from socket failed. Error (Connection timed out),
>>>  | >>         peer (10.250.0.1:24007 <http://10.250.0.1:24007>)
>>> | >>         [2014-08-05 13:26:21.281426] W [socket.c:514:__socket_rwv]
>>> | >>         0-HA-fast-150G-PVE1-client-0: readv failed (Connection
>>> timed out)
>>> | >>         [2014-08-05 13:26:21.281474] W
>>> | >>         [socket.c:1962:__socket_proto_state_machine]
>>> | >>         0-HA-fast-150G-PVE1-client-0: reading from socket failed.
>>> | >>         Error (Connection timed out), peer (10.250.0.1:49153
>>>  | >>         <http://10.250.0.1:49153>)
>>> | >>         [2014-08-05 13:26:21.281507] I
>>> | >>         [client.c:2098:client_rpc_notify]
>>> | >>         0-HA-fast-150G-PVE1-client-0: disconnected
>>> | >>
>>> | >>         the fast one:
>>> | >>         2014-08-05 12:52:44.607389] C
>>> | >>         [client-handshake.c:127:rpc_client_ping_timer_expired]
>>> | >>         0-HA-fast-150G-PVE1-client-1: server 10.250.0.2:49153
>>>  | >>         <http://10.250.0.2:49153> has not responded in the last 2
>>>  | >>         seconds, disconnecting.
>>> | >>         [2014-08-05 12:52:44.607491] W [socket.c:514:__socket_rwv]
>>> | >>         0-HA-fast-150G-PVE1-client-1: readv failed (No data
>>> available)
>>> | >>         [2014-08-05 12:52:44.607585] E
>>> | >>         [rpc-clnt.c:368:saved_frames_unwind]
>>> | >>
>>> (-->/usr/lib/x86_64-linux-gnu/libgfrpc.so.0(rpc_clnt_notify+0xf8)
>>> | >>         [0x7fcb1b4b0558]
>>> | >>
>>> (-->/usr/lib/x86_64-linux-gnu/libgfrpc.so.0(rpc_clnt_connection_cleanup+0xc3)
>>> | >>         [0x7fcb1b4aea63]
>>> | >>
>>> (-->/usr/lib/x86_64-linux-gnu/libgfrpc.so.0(saved_frames_destroy+0xe)
>>> | >>         [0x7fcb1b4ae97e]))) 0-HA-fast-150G-PVE1-client-1: forced
>>> | >>         unwinding frame type(GlusterFS 3.3) op(LOOKUP(27)) called at
>>> | >>         2014-08-05 12:52:42.463881 (xid=0x381883x)
>>> | >>         [2014-08-05 12:52:44.607604] W
>>> | >>         [client-rpc-fops.c:2624:client3_3_lookup_cbk]
>>> | >>         0-HA-fast-150G-PVE1-client-1: remote operation failed:
>>> | >>         Transport endpoint is not connected. Path: /
>>> | >>         (00000000-0000-0000-0000-000000000001)
>>> | >>         [2014-08-05 12:52:44.607736] E
>>> | >>         [rpc-clnt.c:368:saved_frames_unwind]
>>> | >>
>>> (-->/usr/lib/x86_64-linux-gnu/libgfrpc.so.0(rpc_clnt_notify+0xf8)
>>> | >>         [0x7fcb1b4b0558]
>>> | >>
>>> (-->/usr/lib/x86_64-linux-gnu/libgfrpc.so.0(rpc_clnt_connection_cleanup+0xc3)
>>> | >>         [0x7fcb1b4aea63]
>>> | >>
>>> (-->/usr/lib/x86_64-linux-gnu/libgfrpc.so.0(saved_frames_destroy+0xe)
>>> | >>         [0x7fcb1b4ae97e]))) 0-HA-fast-150G-PVE1-client-1: forced
>>> | >>         unwinding frame type(GlusterFS Handshake) op(PING(3)) called
>>> | >>         at 2014-08-05 12:52:42.463891 (xid=0x381884x)
>>> | >>         [2014-08-05 12:52:44.607753] W
>>> | >>         [client-handshake.c:276:client_ping_cbk]
>>> | >>         0-HA-fast-150G-PVE1-client-1: timer must have expired
>>> | >>         [2014-08-05 12:52:44.607776] I
>>> | >>         [client.c:2098:client_rpc_notify]
>>> | >>         0-HA-fast-150G-PVE1-client-1: disconnected
>>> | >>
>>> | >>
>>> | >>
>>> | >>         I've got SSD disks (just for an info).
>>> | >>         Should I go and give a try for 3.5.2?
>>> | >>
>>> | >>
>>> | >>
>>> | >>         2014-08-05 13:06 GMT+03:00 Pranith Kumar Karampuri
>>>  | >>         <pkarampu at redhat.com <mailto:pkarampu at redhat.com>>:
>>> | >>
>>> | >>             reply along with gluster-users please :-). May be you
>>> are
>>> | >>             hitting 'reply' instead of 'reply all'?
>>> | >>
>>> | >>             Pranith
>>> | >>
>>> | >>             On 08/05/2014 03:35 PM, Roman wrote:
>>> | >>>             To make sure and clean, I've created another VM with
>>> raw
>>> | >>>             format and goint to repeat those steps. So now I've got
>>> | >>>             two VM-s one with qcow2 format and other with raw
>>> | >>>             format. I will send another e-mail shortly.
>>> | >>>
>>> | >>>
>>> | >>>             2014-08-05 13:01 GMT+03:00 Pranith Kumar Karampuri
>>>  | >>>             <pkarampu at redhat.com <mailto:pkarampu at redhat.com>>:
>>>  | >>>
>>> | >>>
>>> | >>>                 On 08/05/2014 03:07 PM, Roman wrote:
>>> | >>>>                 really, seems like the same file
>>> | >>>>
>>> | >>>>                 stor1:
>>> | >>>>                 a951641c5230472929836f9fcede6b04
>>> | >>>>
>>>  /exports/fast-test/150G/images/127/vm-127-disk-1.qcow2
>>> | >>>>
>>> | >>>>                 stor2:
>>> | >>>>                 a951641c5230472929836f9fcede6b04
>>> | >>>>
>>>  /exports/fast-test/150G/images/127/vm-127-disk-1.qcow2
>>> | >>>>
>>> | >>>>
>>> | >>>>                 one thing I've seen from logs, that somehow
>>> proxmox
>>> | >>>>                 VE is connecting with wrong version to servers?
>>> | >>>>                 [2014-08-05 09:23:45.218550] I
>>> | >>>>
>>> [client-handshake.c:1659:select_server_supported_programs]
>>> | >>>>                 0-HA-fast-150G-PVE1-client-0: Using Program
>>> | >>>>                 GlusterFS 3.3, Num (1298437), Version (330)
>>> | >>>                 It is the rpc (over the network data structures)
>>> | >>>                 version, which is not changed at all from 3.3 so
>>> | >>>                 thats not a problem. So what is the conclusion? Is
>>> | >>>                 your test case working now or not?
>>> | >>>
>>> | >>>                 Pranith
>>> | >>>
>>> | >>>>                 but if I issue:
>>> | >>>>                 root at pve1:~# glusterfs -V
>>> | >>>>                 glusterfs 3.4.4 built on Jun 28 2014 03:44:57
>>> | >>>>                 seems ok.
>>> | >>>>
>>> | >>>>                 server  use 3.4.4 meanwhile
>>> | >>>>                 [2014-08-05 09:23:45.117875] I
>>> | >>>>                 [server-handshake.c:567:server_setvolume]
>>> | >>>>                 0-HA-fast-150G-PVE1-server: accepted client from
>>> | >>>>
>>> stor1-9004-2014/08/05-09:23:45:93538-HA-fast-150G-PVE1-client-1-0
>>> | >>>>                 (version: 3.4.4)
>>> | >>>>                 [2014-08-05 09:23:49.103035] I
>>> | >>>>                 [server-handshake.c:567:server_setvolume]
>>> | >>>>                 0-HA-fast-150G-PVE1-server: accepted client from
>>> | >>>>
>>> stor1-8998-2014/08/05-09:23:45:89883-HA-fast-150G-PVE1-client-0-0
>>> | >>>>                 (version: 3.4.4)
>>> | >>>>
>>> | >>>>                 if this could be the reason, of course.
>>> | >>>>                 I did restart the Proxmox VE yesterday (just for
>>> an
>>> | >>>>                 information)
>>> | >>>>
>>> | >>>>
>>> | >>>>
>>> | >>>>
>>> | >>>>
>>> | >>>>                 2014-08-05 12:30 GMT+03:00 Pranith Kumar Karampuri
>>>  | >>>>                 <pkarampu at redhat.com <mailto:pkarampu at redhat.com
>>> >>:
>>>  | >>>>
>>> | >>>>
>>> | >>>>                     On 08/05/2014 02:33 PM, Roman wrote:
>>> | >>>>>                     Waited long enough for now, still different
>>> | >>>>>                     sizes and no logs about healing :(
>>> | >>>>>
>>> | >>>>>                     stor1
>>> | >>>>>                     # file:
>>> | >>>>>
>>> exports/fast-test/150G/images/127/vm-127-disk-1.qcow2
>>> | >>>>>
>>> trusted.afr.HA-fast-150G-PVE1-client-0=0x000000000000000000000000
>>> | >>>>>
>>> trusted.afr.HA-fast-150G-PVE1-client-1=0x000000000000000000000000
>>> | >>>>>
>>> trusted.gfid=0xf10ad81b58484bcd9b385a36a207f921
>>> | >>>>>
>>> | >>>>>                     root at stor1:~# du -sh
>>> | >>>>>                     /exports/fast-test/150G/images/127/
>>> | >>>>>                     1.2G  /exports/fast-test/150G/images/127/
>>> | >>>>>
>>> | >>>>>
>>> | >>>>>                     stor2
>>> | >>>>>                     # file:
>>> | >>>>>
>>> exports/fast-test/150G/images/127/vm-127-disk-1.qcow2
>>> | >>>>>
>>> trusted.afr.HA-fast-150G-PVE1-client-0=0x000000000000000000000000
>>> | >>>>>
>>> trusted.afr.HA-fast-150G-PVE1-client-1=0x000000000000000000000000
>>> | >>>>>
>>> trusted.gfid=0xf10ad81b58484bcd9b385a36a207f921
>>> | >>>>>
>>> | >>>>>
>>> | >>>>>                     root at stor2:~# du -sh
>>> | >>>>>                     /exports/fast-test/150G/images/127/
>>> | >>>>>                     1.4G  /exports/fast-test/150G/images/127/
>>> | >>>>                     According to the changelogs, the file doesn't
>>> | >>>>                     need any healing. Could you stop the
>>> operations
>>> | >>>>                     on the VMs and take md5sum on both these
>>> machines?
>>> | >>>>
>>> | >>>>                     Pranith
>>> | >>>>
>>> | >>>>>
>>> | >>>>>
>>> | >>>>>
>>> | >>>>>
>>> | >>>>>                     2014-08-05 11:49 GMT+03:00 Pranith Kumar
>>> | >>>>>                     Karampuri <pkarampu at redhat.com
>>>  | >>>>>                     <mailto:pkarampu at redhat.com>>:
>>>  | >>>>>
>>> | >>>>>
>>> | >>>>>                         On 08/05/2014 02:06 PM, Roman wrote:
>>> | >>>>>>                         Well, it seems like it doesn't see the
>>> | >>>>>>                         changes were made to the volume ? I
>>> | >>>>>>                         created two files 200 and 100 MB (from
>>> | >>>>>>                         /dev/zero) after I disconnected the
>>> first
>>> | >>>>>>                         brick. Then connected it back and got
>>> | >>>>>>                         these logs:
>>> | >>>>>>
>>> | >>>>>>                         [2014-08-05 08:30:37.830150] I
>>> | >>>>>>
>>> [glusterfsd-mgmt.c:1584:mgmt_getspec_cbk]
>>> | >>>>>>                         0-glusterfs: No change in volfile,
>>> continuing
>>> | >>>>>>                         [2014-08-05 08:30:37.830207] I
>>> | >>>>>>                         [rpc-clnt.c:1676:rpc_clnt_reconfig]
>>> | >>>>>>                         0-HA-fast-150G-PVE1-client-0: changing
>>> | >>>>>>                         port to 49153 (from 0)
>>> | >>>>>>                         [2014-08-05 08:30:37.830239] W
>>> | >>>>>>                         [socket.c:514:__socket_rwv]
>>> | >>>>>>                         0-HA-fast-150G-PVE1-client-0: readv
>>> | >>>>>>                         failed (No data available)
>>> | >>>>>>                         [2014-08-05 08:30:37.831024] I
>>> | >>>>>>
>>> [client-handshake.c:1659:select_server_supported_programs]
>>> | >>>>>>                         0-HA-fast-150G-PVE1-client-0: Using
>>> | >>>>>>                         Program GlusterFS 3.3, Num (1298437),
>>> | >>>>>>                         Version (330)
>>> | >>>>>>                         [2014-08-05 08:30:37.831375] I
>>> | >>>>>>
>>> [client-handshake.c:1456:client_setvolume_cbk]
>>> | >>>>>>                         0-HA-fast-150G-PVE1-client-0: Connected
>>> | >>>>>>                         to 10.250.0.1:49153
>>>  | >>>>>>                         <http://10.250.0.1:49153>, attached to
>>>  | >>>>>>                         remote volume
>>> '/exports/fast-test/150G'.
>>> | >>>>>>                         [2014-08-05 08:30:37.831394] I
>>> | >>>>>>
>>> [client-handshake.c:1468:client_setvolume_cbk]
>>> | >>>>>>                         0-HA-fast-150G-PVE1-client-0: Server and
>>> | >>>>>>                         Client lk-version numbers are not same,
>>> | >>>>>>                         reopening the fds
>>> | >>>>>>                         [2014-08-05 08:30:37.831566] I
>>> | >>>>>>
>>> [client-handshake.c:450:client_set_lk_version_cbk]
>>> | >>>>>>                         0-HA-fast-150G-PVE1-client-0: Server lk
>>> | >>>>>>                         version = 1
>>> | >>>>>>
>>> | >>>>>>
>>> | >>>>>>                         [2014-08-05 08:30:37.830150] I
>>> | >>>>>>
>>> [glusterfsd-mgmt.c:1584:mgmt_getspec_cbk]
>>> | >>>>>>                         0-glusterfs: No change in volfile,
>>> continuing
>>> | >>>>>>                         this line seems weird to me tbh.
>>> | >>>>>>                         I do not see any traffic on switch
>>> | >>>>>>                         interfaces between gluster servers,
>>> which
>>> | >>>>>>                         means, there is no syncing between them.
>>> | >>>>>>                         I tried to ls -l the files on the client
>>> | >>>>>>                         and servers to trigger the healing, but
>>> | >>>>>>                         seems like no success. Should I wait
>>> more?
>>> | >>>>>                         Yes, it should take around 10-15 minutes.
>>> | >>>>>                         Could you provide 'getfattr -d -m. -e hex
>>> | >>>>>                         <file-on-brick>' on both the bricks.
>>> | >>>>>
>>> | >>>>>                         Pranith
>>> | >>>>>
>>> | >>>>>>
>>> | >>>>>>
>>> | >>>>>>                         2014-08-05 11:25 GMT+03:00 Pranith Kumar
>>> | >>>>>>                         Karampuri <pkarampu at redhat.com
>>>  | >>>>>>                         <mailto:pkarampu at redhat.com>>:
>>>  | >>>>>>
>>> | >>>>>>
>>> | >>>>>>                             On 08/05/2014 01:10 PM, Roman wrote:
>>> | >>>>>>>                             Ahha! For some reason I was not
>>> able
>>> | >>>>>>>                             to start the VM anymore, Proxmox VE
>>> | >>>>>>>                             told me, that it is not able to
>>> read
>>> | >>>>>>>                             the qcow2 header due to permission
>>> | >>>>>>>                             is denied for some reason. So I
>>> just
>>> | >>>>>>>                             deleted that file and created a new
>>> | >>>>>>>                             VM. And the nex message I've got
>>> was
>>> | >>>>>>>                             this:
>>> | >>>>>>                             Seems like these are the messages
>>> | >>>>>>                             where you took down the bricks
>>> before
>>> | >>>>>>                             self-heal. Could you restart the run
>>> | >>>>>>                             waiting for self-heals to complete
>>> | >>>>>>                             before taking down the next brick?
>>> | >>>>>>
>>> | >>>>>>                             Pranith
>>> | >>>>>>
>>> | >>>>>>>
>>> | >>>>>>>
>>> | >>>>>>>                             [2014-08-05 07:31:25.663412] E
>>> | >>>>>>>
>>> [afr-self-heal-common.c:197:afr_sh_print_split_brain_log]
>>> | >>>>>>>                             0-HA-fast-150G-PVE1-replicate-0:
>>> | >>>>>>>                             Unable to self-heal contents of
>>> | >>>>>>>                             '/images/124/vm-124-disk-1.qcow2'
>>> | >>>>>>>                             (possible split-brain). Please
>>> | >>>>>>>                             delete the file from all but the
>>> | >>>>>>>                             preferred subvolume.- Pending
>>> | >>>>>>>                             matrix:  [ [ 0 60 ] [ 11 0 ] ]
>>> | >>>>>>>                             [2014-08-05 07:31:25.663955] E
>>> | >>>>>>>
>>> [afr-self-heal-common.c:2262:afr_self_heal_completion_cbk]
>>> | >>>>>>>                             0-HA-fast-150G-PVE1-replicate-0:
>>> | >>>>>>>                             background  data self-heal failed
>>> on
>>> | >>>>>>>                             /images/124/vm-124-disk-1.qcow2
>>> | >>>>>>>
>>> | >>>>>>>
>>> | >>>>>>>
>>> | >>>>>>>                             2014-08-05 10:13 GMT+03:00 Pranith
>>> | >>>>>>>                             Kumar Karampuri <
>>> pkarampu at redhat.com
>>>  | >>>>>>>                             <mailto:pkarampu at redhat.com>>:
>>>  | >>>>>>>
>>> | >>>>>>>                                 I just responded to your
>>> earlier
>>> | >>>>>>>                                 mail about how the log looks.
>>> | >>>>>>>                                 The log comes on the mount's
>>> logfile
>>> | >>>>>>>
>>> | >>>>>>>                                 Pranith
>>> | >>>>>>>
>>> | >>>>>>>                                 On 08/05/2014 12:41 PM, Roman
>>> wrote:
>>> | >>>>>>>>                                 Ok, so I've waited enough, I
>>> | >>>>>>>>                                 think. Had no any traffic on
>>> | >>>>>>>>                                 switch ports between servers.
>>> | >>>>>>>>                                 Could not find any suitable
>>> log
>>> | >>>>>>>>                                 message about completed
>>> | >>>>>>>>                                 self-heal (waited about 30
>>> | >>>>>>>>                                 minutes). Plugged out the
>>> other
>>> | >>>>>>>>                                 server's UTP cable this time
>>> | >>>>>>>>                                 and got in the same situation:
>>> | >>>>>>>>                                 root at gluster-test1:~# cat
>>> | >>>>>>>>                                 /var/log/dmesg
>>> | >>>>>>>>                                 -bash: /bin/cat: Input/output
>>> error
>>> | >>>>>>>>
>>> | >>>>>>>>                                 brick logs:
>>> | >>>>>>>>                                 [2014-08-05 07:09:03.005474] I
>>> | >>>>>>>>
>>> [server.c:762:server_rpc_notify]
>>> | >>>>>>>>                                 0-HA-fast-150G-PVE1-server:
>>> | >>>>>>>>                                 disconnecting connectionfrom
>>> | >>>>>>>>
>>> pve1-27649-2014/08/04-13:27:54:720789-HA-fast-150G-PVE1-client-0-0
>>> | >>>>>>>>                                 [2014-08-05 07:09:03.005530] I
>>> | >>>>>>>>
>>> [server-helpers.c:729:server_connection_put]
>>> | >>>>>>>>                                 0-HA-fast-150G-PVE1-server:
>>> | >>>>>>>>                                 Shutting down connection
>>> | >>>>>>>>
>>> pve1-27649-2014/08/04-13:27:54:720789-HA-fast-150G-PVE1-client-0-0
>>> | >>>>>>>>                                 [2014-08-05 07:09:03.005560] I
>>> | >>>>>>>>
>>> [server-helpers.c:463:do_fd_cleanup]
>>> | >>>>>>>>                                 0-HA-fast-150G-PVE1-server: fd
>>> | >>>>>>>>                                 cleanup on
>>> | >>>>>>>>
>>> /images/124/vm-124-disk-1.qcow2
>>> | >>>>>>>>                                 [2014-08-05 07:09:03.005797] I
>>> | >>>>>>>>
>>> [server-helpers.c:617:server_connection_destroy]
>>> | >>>>>>>>                                 0-HA-fast-150G-PVE1-server:
>>> | >>>>>>>>                                 destroyed connection of
>>> | >>>>>>>>
>>> pve1-27649-2014/08/04-13:27:54:720789-HA-fast-150G-PVE1-client-0-0
>>> | >>>>>>>>
>>> | >>>>>>>>
>>> | >>>>>>>>
>>> | >>>>>>>>
>>> | >>>>>>>>
>>> | >>>>>>>>                                 2014-08-05 9:53 GMT+03:00
>>> | >>>>>>>>                                 Pranith Kumar Karampuri
>>> | >>>>>>>>                                 <pkarampu at redhat.com
>>>  | >>>>>>>>                                 <mailto:pkarampu at redhat.com
>>> >>:
>>>  | >>>>>>>>
>>> | >>>>>>>>                                     Do you think it is
>>> possible
>>> | >>>>>>>>                                     for you to do these tests
>>> | >>>>>>>>                                     on the latest version
>>> | >>>>>>>>                                     3.5.2? 'gluster volume
>>> heal
>>> | >>>>>>>>                                     <volname> info' would give
>>> | >>>>>>>>                                     you that information in
>>> | >>>>>>>>                                     versions > 3.5.1.
>>> | >>>>>>>>                                     Otherwise you will have to
>>> | >>>>>>>>                                     check it from either the
>>> | >>>>>>>>                                     logs, there will be
>>> | >>>>>>>>                                     self-heal completed
>>> message
>>> | >>>>>>>>                                     on the mount logs (or) by
>>> | >>>>>>>>                                     observing 'getfattr -d -m.
>>> | >>>>>>>>                                     -e hex
>>> <image-file-on-bricks>'
>>> | >>>>>>>>
>>> | >>>>>>>>                                     Pranith
>>> | >>>>>>>>
>>> | >>>>>>>>
>>> | >>>>>>>>                                     On 08/05/2014 12:09 PM,
>>> | >>>>>>>>                                     Roman wrote:
>>> | >>>>>>>>>                                     Ok, I understand. I will
>>> | >>>>>>>>>                                     try this shortly.
>>> | >>>>>>>>>                                     How can I be sure, that
>>> | >>>>>>>>>                                     healing process is done,
>>> | >>>>>>>>>                                     if I am not able to see
>>> | >>>>>>>>>                                     its status?
>>> | >>>>>>>>>
>>> | >>>>>>>>>
>>> | >>>>>>>>>                                     2014-08-05 9:30 GMT+03:00
>>> | >>>>>>>>>                                     Pranith Kumar Karampuri
>>> | >>>>>>>>>                                     <pkarampu at redhat.com
>>>  | >>>>>>>>>                                     <mailto:
>>> pkarampu at redhat.com>>:
>>>  | >>>>>>>>>
>>> | >>>>>>>>>                                         Mounts will do the
>>> | >>>>>>>>>                                         healing, not the
>>> | >>>>>>>>>                                         self-heal-daemon. The
>>> | >>>>>>>>>                                         problem I feel is
>>> that
>>> | >>>>>>>>>                                         whichever process
>>> does
>>> | >>>>>>>>>                                         the healing has the
>>> | >>>>>>>>>                                         latest information
>>> | >>>>>>>>>                                         about the good bricks
>>> | >>>>>>>>>                                         in this usecase.
>>> Since
>>> | >>>>>>>>>                                         for VM usecase,
>>> mounts
>>> | >>>>>>>>>                                         should have the
>>> latest
>>> | >>>>>>>>>                                         information, we
>>> should
>>> | >>>>>>>>>                                         let the mounts do the
>>> | >>>>>>>>>                                         healing. If the mount
>>> | >>>>>>>>>                                         accesses the VM image
>>> | >>>>>>>>>                                         either by someone
>>> | >>>>>>>>>                                         doing operations
>>> | >>>>>>>>>                                         inside the VM or
>>> | >>>>>>>>>                                         explicit stat on the
>>> | >>>>>>>>>                                         file it should do the
>>> | >>>>>>>>>                                         healing.
>>> | >>>>>>>>>
>>> | >>>>>>>>>                                         Pranith.
>>> | >>>>>>>>>
>>> | >>>>>>>>>
>>> | >>>>>>>>>                                         On 08/05/2014 10:39
>>> | >>>>>>>>>                                         AM, Roman wrote:
>>> | >>>>>>>>>>                                         Hmmm, you told me to
>>> | >>>>>>>>>>                                         turn it off. Did I
>>> | >>>>>>>>>>                                         understood something
>>> | >>>>>>>>>>                                         wrong? After I
>>> issued
>>> | >>>>>>>>>>                                         the command you've
>>> | >>>>>>>>>>                                         sent me, I was not
>>> | >>>>>>>>>>                                         able to watch the
>>> | >>>>>>>>>>                                         healing process, it
>>> | >>>>>>>>>>                                         said, it won't be
>>> | >>>>>>>>>>                                         healed, becouse its
>>> | >>>>>>>>>>                                         turned off.
>>> | >>>>>>>>>>
>>> | >>>>>>>>>>
>>> | >>>>>>>>>>                                         2014-08-05 5:39
>>> | >>>>>>>>>>                                         GMT+03:00 Pranith
>>> | >>>>>>>>>>                                         Kumar Karampuri
>>> | >>>>>>>>>>                                         <
>>> pkarampu at redhat.com
>>>  | >>>>>>>>>>                                         <mailto:
>>> pkarampu at redhat.com>>:
>>>  | >>>>>>>>>>
>>> | >>>>>>>>>>                                             You didn't
>>> | >>>>>>>>>>                                             mention anything
>>> | >>>>>>>>>>                                             about
>>> | >>>>>>>>>>                                             self-healing.
>>> Did
>>> | >>>>>>>>>>                                             you wait until
>>> | >>>>>>>>>>                                             the self-heal is
>>> | >>>>>>>>>>                                             complete?
>>> | >>>>>>>>>>
>>> | >>>>>>>>>>                                             Pranith
>>> | >>>>>>>>>>
>>> | >>>>>>>>>>                                             On 08/04/2014
>>> | >>>>>>>>>>                                             05:49 PM, Roman
>>> | >>>>>>>>>>                                             wrote:
>>> | >>>>>>>>>>>                                             Hi!
>>> | >>>>>>>>>>>                                             Result is
>>> pretty
>>> | >>>>>>>>>>>                                             same. I set the
>>> | >>>>>>>>>>>                                             switch port
>>> down
>>> | >>>>>>>>>>>                                             for 1st server,
>>> | >>>>>>>>>>>                                             it was ok. Then
>>> | >>>>>>>>>>>                                             set it up back
>>> | >>>>>>>>>>>                                             and set other
>>> | >>>>>>>>>>>                                             server's port
>>> | >>>>>>>>>>>                                             off. and it
>>> | >>>>>>>>>>>                                             triggered IO
>>> | >>>>>>>>>>>                                             error on two
>>> | >>>>>>>>>>>                                             virtual
>>> | >>>>>>>>>>>                                             machines: one
>>> | >>>>>>>>>>>                                             with local root
>>> | >>>>>>>>>>>                                             FS but network
>>> | >>>>>>>>>>>                                             mounted
>>> storage.
>>> | >>>>>>>>>>>                                             and other with
>>> | >>>>>>>>>>>                                             network root
>>> FS.
>>> | >>>>>>>>>>>                                             1st gave an
>>> | >>>>>>>>>>>                                             error on
>>> copying
>>> | >>>>>>>>>>>                                             to or from the
>>> | >>>>>>>>>>>                                             mounted network
>>> | >>>>>>>>>>>                                             disk, other
>>> just
>>> | >>>>>>>>>>>                                             gave me an
>>> error
>>> | >>>>>>>>>>>                                             for even
>>> reading
>>> | >>>>>>>>>>>                                             log.files.
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>                                             cat:
>>> | >>>>>>>>>>>
>>> /var/log/alternatives.log:
>>> | >>>>>>>>>>>                                             Input/output
>>> error
>>> | >>>>>>>>>>>                                             then I reset
>>> the
>>> | >>>>>>>>>>>                                             kvm VM and it
>>> | >>>>>>>>>>>                                             said me, there
>>> | >>>>>>>>>>>                                             is no boot
>>> | >>>>>>>>>>>                                             device. Next I
>>> | >>>>>>>>>>>                                             virtually
>>> | >>>>>>>>>>>                                             powered it off
>>> | >>>>>>>>>>>                                             and then back
>>> on
>>> | >>>>>>>>>>>                                             and it has
>>> booted.
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>                                             By the way, did
>>> | >>>>>>>>>>>                                             I have to
>>> | >>>>>>>>>>>                                             start/stop
>>> volume?
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>                                             >> Could you do
>>> | >>>>>>>>>>>                                             the following
>>> | >>>>>>>>>>>                                             and test it
>>> again?
>>> | >>>>>>>>>>>                                             >> gluster
>>> volume
>>> | >>>>>>>>>>>                                             set <volname>
>>> | >>>>>>>>>>>
>>> cluster.self-heal-daemon
>>> | >>>>>>>>>>>                                             off
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>                                             >>Pranith
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>                                             2014-08-04
>>> 14:10
>>> | >>>>>>>>>>>                                             GMT+03:00
>>> | >>>>>>>>>>>                                             Pranith Kumar
>>> | >>>>>>>>>>>                                             Karampuri
>>> | >>>>>>>>>>>                                             <
>>> pkarampu at redhat.com
>>>  | >>>>>>>>>>>                                             <mailto:
>>> pkarampu at redhat.com>>:
>>>  | >>>>>>>>>>>
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>                                                 On
>>> | >>>>>>>>>>>                                                 08/04/2014
>>> | >>>>>>>>>>>                                                 03:33 PM,
>>> | >>>>>>>>>>>                                                 Roman
>>> wrote:
>>> | >>>>>>>>>>>>                                                 Hello!
>>> | >>>>>>>>>>>>
>>> | >>>>>>>>>>>>                                                 Facing the
>>> | >>>>>>>>>>>>                                                 same
>>> | >>>>>>>>>>>>                                                 problem as
>>> | >>>>>>>>>>>>                                                 mentioned
>>> | >>>>>>>>>>>>                                                 here:
>>> | >>>>>>>>>>>>
>>> | >>>>>>>>>>>>
>>> http://supercolony.gluster.org/pipermail/gluster-users/2014-April/039959.html
>>> | >>>>>>>>>>>>
>>> | >>>>>>>>>>>>                                                 my set up
>>> | >>>>>>>>>>>>                                                 is up and
>>> | >>>>>>>>>>>>                                                 running,
>>> so
>>> | >>>>>>>>>>>>                                                 i'm ready
>>> | >>>>>>>>>>>>                                                 to help
>>> you
>>> | >>>>>>>>>>>>                                                 back with
>>> | >>>>>>>>>>>>                                                 feedback.
>>> | >>>>>>>>>>>>
>>> | >>>>>>>>>>>>                                                 setup:
>>> | >>>>>>>>>>>>                                                 proxmox
>>> | >>>>>>>>>>>>                                                 server as
>>> | >>>>>>>>>>>>                                                 client
>>> | >>>>>>>>>>>>                                                 2 gluster
>>> | >>>>>>>>>>>>                                                 physical
>>> | >>>>>>>>>>>>                                                  servers
>>> | >>>>>>>>>>>>
>>> | >>>>>>>>>>>>                                                 server
>>> side
>>> | >>>>>>>>>>>>                                                 and client
>>> | >>>>>>>>>>>>                                                 side both
>>> | >>>>>>>>>>>>                                                 running
>>> atm
>>> | >>>>>>>>>>>>                                                 3.4.4
>>> | >>>>>>>>>>>>                                                 glusterfs
>>> | >>>>>>>>>>>>                                                 from
>>> | >>>>>>>>>>>>                                                 gluster
>>> repo.
>>> | >>>>>>>>>>>>
>>> | >>>>>>>>>>>>                                                 the
>>> problem is:
>>> | >>>>>>>>>>>>
>>> | >>>>>>>>>>>>                                                 1. craeted
>>> | >>>>>>>>>>>>                                                 replica
>>> bricks.
>>> | >>>>>>>>>>>>                                                 2. mounted
>>> | >>>>>>>>>>>>                                                 in proxmox
>>> | >>>>>>>>>>>>                                                 (tried
>>> both
>>> | >>>>>>>>>>>>                                                 promox
>>> | >>>>>>>>>>>>                                                 ways: via
>>> | >>>>>>>>>>>>                                                 GUI and
>>> | >>>>>>>>>>>>                                                 fstab
>>> (with
>>> | >>>>>>>>>>>>                                                 backup
>>> | >>>>>>>>>>>>                                                 volume
>>> | >>>>>>>>>>>>                                                 line), btw
>>> | >>>>>>>>>>>>                                                 while
>>> | >>>>>>>>>>>>                                                 mounting
>>> | >>>>>>>>>>>>                                                 via fstab
>>> | >>>>>>>>>>>>                                                 I'm unable
>>> | >>>>>>>>>>>>                                                 to launch
>>> a
>>> | >>>>>>>>>>>>                                                 VM without
>>> | >>>>>>>>>>>>                                                 cache,
>>> | >>>>>>>>>>>>                                                 meanwhile
>>> | >>>>>>>>>>>>
>>> direct-io-mode
>>> | >>>>>>>>>>>>                                                 is enabled
>>> | >>>>>>>>>>>>                                                 in fstab
>>> line)
>>> | >>>>>>>>>>>>                                                 3.
>>> installed VM
>>> | >>>>>>>>>>>>                                                 4. bring
>>> | >>>>>>>>>>>>                                                 one volume
>>> | >>>>>>>>>>>>                                                 down - ok
>>> | >>>>>>>>>>>>                                                 5.
>>> bringing
>>> | >>>>>>>>>>>>                                                 up,
>>> waiting
>>> | >>>>>>>>>>>>                                                 for sync
>>> is
>>> | >>>>>>>>>>>>                                                 done.
>>> | >>>>>>>>>>>>                                                 6. bring
>>> | >>>>>>>>>>>>                                                 other
>>> | >>>>>>>>>>>>                                                 volume
>>> down
>>> | >>>>>>>>>>>>                                                 - getting
>>> | >>>>>>>>>>>>                                                 IO errors
>>> | >>>>>>>>>>>>                                                 on VM
>>> guest
>>> | >>>>>>>>>>>>                                                 and not
>>> | >>>>>>>>>>>>                                                 able to
>>> | >>>>>>>>>>>>                                                 restore
>>> the
>>> | >>>>>>>>>>>>                                                 VM after I
>>> | >>>>>>>>>>>>                                                 reset the
>>> | >>>>>>>>>>>>                                                 VM via
>>> | >>>>>>>>>>>>                                                 host. It
>>> | >>>>>>>>>>>>                                                 says (no
>>> | >>>>>>>>>>>>                                                 bootable
>>> | >>>>>>>>>>>>                                                 media).
>>> | >>>>>>>>>>>>                                                 After I
>>> | >>>>>>>>>>>>                                                 shut it
>>> | >>>>>>>>>>>>                                                 down
>>> | >>>>>>>>>>>>                                                 (forced)
>>> | >>>>>>>>>>>>                                                 and bring
>>> | >>>>>>>>>>>>                                                 back up,
>>> it
>>> | >>>>>>>>>>>>                                                 boots.
>>> | >>>>>>>>>>>                                                 Could you
>>> do
>>> | >>>>>>>>>>>                                                 the
>>> | >>>>>>>>>>>                                                 following
>>> | >>>>>>>>>>>                                                 and test it
>>> | >>>>>>>>>>>                                                 again?
>>> | >>>>>>>>>>>                                                 gluster
>>> | >>>>>>>>>>>                                                 volume set
>>> | >>>>>>>>>>>                                                 <volname>
>>> | >>>>>>>>>>>
>>> cluster.self-heal-daemon
>>> | >>>>>>>>>>>                                                 off
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>                                                 Pranith
>>> | >>>>>>>>>>>>
>>> | >>>>>>>>>>>>                                                 Need help.
>>> | >>>>>>>>>>>>                                                 Tried
>>> | >>>>>>>>>>>>                                                 3.4.3,
>>> 3.4.4.
>>> | >>>>>>>>>>>>                                                 Still
>>> | >>>>>>>>>>>>                                                 missing
>>> | >>>>>>>>>>>>                                                 pkg-s for
>>> | >>>>>>>>>>>>                                                 3.4.5 for
>>> | >>>>>>>>>>>>                                                 debian and
>>> | >>>>>>>>>>>>                                                 3.5.2
>>> | >>>>>>>>>>>>                                                 (3.5.1
>>> | >>>>>>>>>>>>                                                 always
>>> | >>>>>>>>>>>>                                                 gives a
>>> | >>>>>>>>>>>>                                                 healing
>>> | >>>>>>>>>>>>                                                 error for
>>> | >>>>>>>>>>>>                                                 some
>>> reason)
>>> | >>>>>>>>>>>>
>>> | >>>>>>>>>>>>                                                 --
>>> | >>>>>>>>>>>>                                                 Best
>>> regards,
>>> | >>>>>>>>>>>>                                                 Roman.
>>> | >>>>>>>>>>>>
>>> | >>>>>>>>>>>>
>>> | >>>>>>>>>>>>
>>> _______________________________________________
>>> | >>>>>>>>>>>>
>>> Gluster-users
>>> | >>>>>>>>>>>>                                                 mailing
>>> list
>>> | >>>>>>>>>>>>
>>> Gluster-users at gluster.org
>>>  | >>>>>>>>>>>>                                                 <mailto:
>>> Gluster-users at gluster.org>
>>>  | >>>>>>>>>>>>
>>> http://supercolony.gluster.org/mailman/listinfo/gluster-users
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>
>>> | >>>>>>>>>>>                                             --
>>> | >>>>>>>>>>>                                             Best regards,
>>> | >>>>>>>>>>>                                             Roman.
>>> | >>>>>>>>>>
>>> | >>>>>>>>>>
>>> | >>>>>>>>>>
>>> | >>>>>>>>>>
>>> | >>>>>>>>>>                                         --
>>> | >>>>>>>>>>                                         Best regards,
>>> | >>>>>>>>>>                                         Roman.
>>> | >>>>>>>>>
>>> | >>>>>>>>>
>>> | >>>>>>>>>
>>> | >>>>>>>>>
>>> | >>>>>>>>>                                     --
>>> | >>>>>>>>>                                     Best regards,
>>> | >>>>>>>>>                                     Roman.
>>> | >>>>>>>>
>>> | >>>>>>>>
>>> | >>>>>>>>
>>> | >>>>>>>>
>>> | >>>>>>>>                                 --
>>> | >>>>>>>>                                 Best regards,
>>> | >>>>>>>>                                 Roman.
>>> | >>>>>>>
>>> | >>>>>>>
>>> | >>>>>>>
>>> | >>>>>>>
>>> | >>>>>>>                             --
>>> | >>>>>>>                             Best regards,
>>> | >>>>>>>                             Roman.
>>> | >>>>>>
>>> | >>>>>>
>>> | >>>>>>
>>> | >>>>>>
>>> | >>>>>>                         --
>>> | >>>>>>                         Best regards,
>>> | >>>>>>                         Roman.
>>> | >>>>>
>>> | >>>>>
>>> | >>>>>
>>> | >>>>>
>>> | >>>>>                     --
>>> | >>>>>                     Best regards,
>>> | >>>>>                     Roman.
>>> | >>>>
>>> | >>>>
>>> | >>>>
>>> | >>>>
>>> | >>>>                 --
>>> | >>>>                 Best regards,
>>> | >>>>                 Roman.
>>> | >>>
>>> | >>>
>>> | >>>
>>> | >>>
>>> | >>>             --
>>> | >>>             Best regards,
>>> | >>>             Roman.
>>> | >>
>>> | >>
>>> | >>
>>> | >>
>>> | >>         --
>>> | >>         Best regards,
>>> | >>         Roman.
>>> | >>
>>> | >>
>>> | >>
>>> | >>
>>> | >>     --
>>> | >>     Best regards,
>>> | >>     Roman.
>>> | >
>>> | >
>>> | >
>>> | >
>>> | > --
>>> | > Best regards,
>>> | > Roman.
>>> |
>>> |
>>>
>>
>>
>>
>>  --
>> Best regards,
>> Roman.
>>
>>
>>
>
>
> --
> Best regards,
> Roman.
>



-- 
Best regards,
Roman.
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