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<div class="moz-cite-prefix">[konetzed@ovz2 ~]$ sudo pstorage -c
test_cluster stat<br>
connected to MDS#3<br>
Cluster 'test_cluster': healthy<br>
Space: [OK] allocatable 28GB of 35GB, free 31GB of 35GB<br>
MDS nodes: 3 of 3, epoch uptime: 10h 25m<br>
CS nodes: 3 of 3 (3 avail, 0 inactive, 0 offline)<br>
License: [Error] License not loaded, capacity limited to 100Gb<br>
Replication: 1 norm, 1 limit<br>
Chunks: [OK] 1 (100%) healthy, 0 (0%) standby, 0 (0%) degraded,
0 (0%) urgent,<br>
0 (0%) blocked, 0 (0%) pending, 0 (0%) offline, 0
(0%) replicating,<br>
0 (0%) overcommitted, 0 (0%) deleting, 0 (0%) void<br>
FS: 10KB in 2 files, 2 inodes, 1 file maps, 1 chunks, 1 chunk
replicas<br>
IO: read 0B/s ( 0ops/s), write 0B/s ( 0ops/s)<br>
IO total: read 0B ( 0ops), write 0B ( 0ops)<br>
Repl IO: read 0B/s, write: 0B/s<br>
Sync rate: 0ops/s, datasync rate: 0ops/s<br>
<br>
MDSID STATUS %CTIME COMMITS %CPU MEM UPTIME HOST <br>
1 avail 3.1% 1/s 0.1% 14m 9h 58m
ovz1.home.int:2510 <br>
2 avail 2.5% 0/s 0.0% 14m 9h 14m
ovz2.home.int:2510 <br>
M 3 avail 3.0% 1/s 0.3% 15m 10h 25m
ovz3.home.int:2510 <br>
<br>
CSID STATUS SPACE FREE REPLICAS IOWAIT IOLAT(ms) QDEPTH
HOST <br>
1025 active 11GB 10GB 0 0% 0/0 0.0
ovz1.home.int <br>
1026 active 11GB 10GB 0 0% 0/0 0.0
ovz2.home.int <br>
1027 active 11GB 10GB 1 0% 0/0 0.0
ovz3.home.int <br>
<br>
CLID LEASES READ WRITE RD_OPS WR_OPS FSYNCS
IOLAT(ms) HOST <br>
2060 0/0 0B/s 0B/s 0ops/s 0ops/s
0ops/s 0/0 ovz3.home.int <br>
2065 0/1 0B/s 0B/s 0ops/s 0ops/s
0ops/s 0/0 ovz1.home.int <br>
<br>
I do have skype but I have meetings all day for work and cant be
on a computer after. I may have time tomorrow if that would
work. I am in the central time zone.<br>
<br>
Edward<br>
<br>
<br>
On 01/29/2014 03:14 AM, Kirill Korotaev wrote:<br>
</div>
<blockquote
cite="mid:7782404C-F66E-48F4-9348-B9A2C39893C4@parallels.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
Edward,
<div><br>
</div>
<div>can you send me in private email output of:</div>
<div># pstorage -c <cluster> stat</div>
<div>output?</div>
<div><br>
</div>
<div>Do you have a skype?</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Kirill</div>
<div><br>
<div><br>
</div>
<div><br>
<div>
<div>On 29 Jan 2014, at 10:26, Edward Konetzko <<a
moz-do-not-send="true" href="mailto:konetzed@gmail.com">konetzed@gmail.com</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">
<div bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">On 01/28/2014 09:51 AM, Kir
Kolyshkin wrote:<br>
</div>
<blockquote
cite="mid:CAGmPdrydKUc+AgQh=A1-tPeDEdb7yVO0uEA6=Z23A+OW9QK14w@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">On 28 January 2014 02:55,
Kirill Korotaev <span dir="ltr">
<<a moz-do-not-send="true"
href="mailto:dev@parallels.com"
target="_blank">dev@parallels.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div class="im">>> On 25 Jan 2014, at
07:38, Rene C. <a moz-do-not-send="true"
href="mailto:openvz@dokbua.com">
openvz@dokbua.com</a> wrote:<br>
>><br>
><br>
> Hi,<br>
><br>
> I read the website about the cloud
storage and I found some words, which seems
familiar for me.<br>
><br>
> May I ask, which filesystem do you use
to be able to regularly scrub and self-heal
the filesystem?<br>
><br>
> Personaly I use zfsonlinux in
production for a long time now and I am very
satisfied with it, and based on your
description, it seems you should use
something like that and something on top of
the native filesystem to get a cloud
storage.<br>
><br>
> Or you use a ceph or alike
"filesystem", which has similar capabilities
with cloud features.<br>
<br>
</div>
It’s more like a ceph. Data is stored in a
distributed way, so unlike to zfs you have
access to the data even in case of node
failure (crash, CPU/memory fault etc.) and
access is available from ANY cluster node.<br>
As such we store the data and maintain
checksums on every node and can do periodic
scrubbing of the data.<br>
</blockquote>
<div><br>
</div>
<div>Just to clarify -- this is Parallels own
distributed/cloud filesystem, not CEPH or
GlusterFS,</div>
<div>but similar to. For more info, check the
links at <a moz-do-not-send="true"
href="https://openvz.org/Parallels_Cloud_Storage#External_links">https://openvz.org/Parallels_Cloud_Storage#External_links</a></div>
</div>
<br>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Users mailing list
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</pre>
</blockquote>
Setup a cluster using Centos 6.5 64bit, fresh install in
KVM instances. I wanted to test functionality not
actual speed.
<br>
<br>
All software was latest as of last night and I followed
the quick how to here <a moz-do-not-send="true"
class="moz-txt-link-freetext"
href="https://openvz.org/Parallels_Cloud_Storage">
https://openvz.org/Parallels_Cloud_Storage</a><br>
<br>
Everything works great until I try to create an instance
using the command "vzctl create 101 --layout ploop
--ostemplate centos-6-x86_64 --private
/pcs/containers/101" from the docs.<br>
<br>
About one mb of data is written to disk and then it just
hangs. The following is output from dmesg<br>
<br>
[ 360.414242] INFO: task vzctl:1646 blocked for more
than 120 seconds.<br>
[ 360.414770] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this
message.<br>
[ 360.415406] vzctl D ffff88007e444500 0
1646 1611 0 0x00000084<br>
[ 360.415418] ffff88007ea59a68 0000000000000086
ffff8800ffffffff 000006b62934b8c0<br>
[ 360.415428] 0000000000000000 ffff88007e9f2ad0
0000000000005eaa ffffffffad17694d<br>
[ 360.415437] 000000000ad7ef74 ffffffff81a97b40
ffff88007e444ac8 000000000001eb80<br>
[ 360.415452] Call Trace:<br>
[ 360.415492] [<ffffffff81517353>]
io_schedule+0x73/0xc0<br>
[ 360.415516] [<ffffffff811f39b3>]
wait_on_sync_kiocb+0x53/0x80<br>
[ 360.415537] [<ffffffffa04dbf47>]
fuse_direct_IO+0x167/0x230 [fuse]<br>
[ 360.415558] [<ffffffff8112e948>]
mapping_direct_IO+0x48/0x70<br>
[ 360.415567] [<ffffffff811301a6>]
generic_file_direct_write_iter+0xf6/0x170<br>
[ 360.415576] [<ffffffff81130c8e>]
__generic_file_write_iter+0x32e/0x420<br>
[ 360.415585] [<ffffffff81130e05>]
__generic_file_aio_write+0x85/0xa0<br>
[ 360.415594] [<ffffffff81130ea8>]
generic_file_aio_write+0x88/0x100<br>
[ 360.415605] [<ffffffffa04da085>]
fuse_file_aio_write+0x185/0x430 [fuse]<br>
[ 360.415623] [<ffffffff811a530a>]
do_sync_write+0xfa/0x140<br>
[ 360.415641] [<ffffffff8109d930>] ?
autoremove_wake_function+0x0/0x40<br>
[ 360.415655] [<ffffffff812902da>] ?
strncpy_from_user+0x4a/0x90<br>
[ 360.415664] [<ffffffff811a55e8>]
vfs_write+0xb8/0x1a0<br>
[ 360.415671] [<ffffffff811a5ee1>]
sys_write+0x51/0x90<br>
[ 360.415681] [<ffffffff8100b102>]
system_call_fastpath+0x16/0x1b<br>
<br>
Even just trying to create a 10k file with dd causes a
task to hang. "dd if=/dev/zero of=/pcs/test.junk bs=1k
count=10"<br>
<br>
<br>
Any ideas? Anymore info you would like for debugging. <br>
</div>
_______________________________________________<br>
Users mailing list<br>
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</blockquote>
</div>
<br>
</div>
</div>
</blockquote>
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