Hi John,
Thanks for the reply.
It seems that to understand the internal mechanism and the algorithmic
structure of ceph, knowledge of Information theory is necessary ☺.
Thanks
Kumar
From: John Wilkins [mailto:john.wilk...@inktank.com]
Sent: Monday, May 19, 2014 10:18 PM
To: Gnan Kumar, Yalla
Hi,
I am trying to create and list all users by using the functions
http://ceph.com/docs/master/radosgw/adminops/ and i successfully created
the access tokens but i am getting an access denied and 403 for listing
users function. The GET /{admin}/user is used for getting the complete
users list, bu
Ok, maybe it is bug) But in Ubuntu distro all work correct. Maybee they know
about it and fix it.
19.05.2014, 23:05, "Alfredo Deza" :
> On Sun, May 18, 2014 at 1:36 PM, reistlin87 wrote:
>
>> Yes, i have tried. I have found,that Ubuntu Server create admin socket with
>> right name. All other
Got the stack trace when it crashed. I had to enable serial port to capture
this. Would this help?
[ 172.227318] libceph: mon0 192.168.56.102:6789 feature set mismatch, my
40002 < server's 20042040002, missing 2004200
[ 172.451109] libceph: mon0 192.168.56.102:6789 socket error on read
[
I found that deep scrub has a significant impact on my cluster. I've
used "ceph osd set nodeep-scrub" disable it. But I got an error
"HEALTH_WARN nodeep-scrub flag(s) set". What is the proper way to
disable deep scrub? and how can I run it manually?
--
_
/ In
I create the new complex rule:
rule datacenter_rep2 {
ruleset 2
type replicated
min_size 1
max_size 10
step take default
step choose firstn 2 type datacenter
step chooseleaf firstn -1 type host
step emit
}
assign to pools, and now cluster work as I expect.
2014-05-20 11:59 GMT+12:
Hi Matt,
The problem you came across was due to a change made in the rados bench along
with the Firefly release, it aimed to solve the problem that if there were
multiple rados instance (for writing), we want to do a rados read for each run
as well.
Unfortunately, that change broke your user ca
Thank you for your help.
Yes, i also defined on the second node(destination node). I've double
checked ephemeral and private, both of them show me this
~# virsh secret-dumpxml b34526f2-8d32-ed5d-3153-e90d011dd37e
b34526f2-8d32-ed5d-3153-e90d011dd37e
client.libvirt secret
https://cep
On 05/19/2014 01:48 AM, JinHwan Hwang wrote:
I have been trying to do live migration on vm which is running on rbd.
But so far, they only give me ' internal error: rbd username 'libvirt'
specified but secret not found' when i do live migration.
ceph-admin : source host
host : destination host
r
Hi!
Can you help me to understand why crushmap with
step chooseleaf firstn 0 type host
can't work with hosts in data centers?
If I have the osd tree:
# id weight type name up/down reweight
-1 0.12 root default
-3 0.03 host tceph2
1 0.03 osd.1 up 1
-4 0.03 host tceph3
2 0.03 osd.2 up 1
-2 0.03 hos
I was experimenting previously with 0.72 , and could easily cleanup pool
objects from several previous rados bench (write) jobs with :
rados -p cleanup bench (would remove all objects starting
with "bench")
I quickly realised when I moved to 0.80 that my script was broken and
theoretically
With the help of Josh on IRC, we found that actually the glance_api_version
directive has to be in the [default] block of your cinder.conf ( i happen
to have two storage backends and this directive was in my rbd block).
After fixing this config my volumes created via cinder are indeed COW.
Now I
On 14/05/14 13:24, Christian Eichelmann wrote:
> Hi Ceph User!
>
> I had a look at the "official" collectd fork for ceph, which is quite
> outdated and not compatible with the upstream version.
>
> Since this was not an option for us, I've worte a Python Plugin for
> Collectd, that gets all the p
On Mon, May 19, 2014 at 9:05 AM, Ignazio Cassano
wrote:
> Hi all, I'd like to know if cephfs is in heavy developement or it is ready
> for production .
> Documentation reports it is not for production but I think documentation on
> ceph.com is not enough recent .
There are groups successfully us
On Mon, May 19, 2014 at 4:05 AM, Florent B wrote:
> On 05/19/2014 12:40 PM, Wido den Hollander wrote:
>> On 05/19/2014 12:31 PM, Florent B wrote:
>>> Hi all,
>>>
>>> I use CephFS and I am wondering what does "metadata" pool contains
>>> exactly ?
>>>
>>
>> It contains the directory structure of yo
On Sat, May 17, 2014 at 5:40 PM, Michal Pazdera
wrote:
> Hi everyone,
>
> I wonder if CephFS is able to read from all replicas simontaniously, that
> will result in doubled read performance if
> a replica of 2 has been used.
Nope, definitely not.
> I have done some humble testing on 5PCs (2OSD
>
Hello,
We are looking for a Ceph consultant to help with setting up an S3 gateway.
If interested, please contact me via email.
Thanks!
-Glen
gaidu...@behaviormatrix.com
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On Sun, May 18, 2014 at 1:36 PM, reistlin87 wrote:
>
> Yes, i have tried. I have found,that Ubuntu Server create admin socket with
> right name. All other distros( i have tasted CentOS 6.5, OpenSUSE 13.1,
> Debian 7.5) create wrong admin socket name with non-default cluster name. Is
> it bug, or i
Hello,
I have un big problem on Web gateway after upgrading emperor to Firefly.
I have only this on my logs:
2014-05-19 20:29:17.303454 7f131217a780 0 ceph version 0.80.1
(a38fe1169b6d2ac98b427334c12d7cf81f809b74), process radosgw, pid 4002
2014-05-19 20:29:17.329183 7f131217a780 0 client.80
On Mon, May 19, 2014 at 8:37 PM, Jay Janardhan wrote:
> Ilya, The SysRq is not doing anything as the kernel is hung. Btw, this is a
> VirtualBox environment so I used the VBoxManage to send the SysRq commands.
> Just to let you know, the system locksup and the only way out is a hard
> reset.
Well
I have also added a big part of Loic's discussion of the architecture into
the Ceph architecture document here:
http://ceph.com/docs/master/architecture/#erasure-coding
On Mon, May 19, 2014 at 5:35 AM, wrote:
> Hi Loic,
>
> Thanks for the reply.
>
>
> Thanks
> Kumar
>
>
> -Original Message
Ilya, The SysRq is not doing anything as the kernel is hung. Btw, this is a
VirtualBox environment so I used the VBoxManage to send the SysRq commands.
Just to let you know, the system locksup and the only way out is a hard
reset.
On Mon, May 19, 2014 at 12:10 PM, Jay Janardhan wrote:
> Thanks
Thanks for the response Ilya. I need to figure out how to use SysRq on my
Mac. Meanwhile, here is the strace output and ceph version:
*Ceph Version: *ceph version 0.80.1
(a38fe1169b6d2ac98b427334c12d7cf81f809b74)
**
Note that IP 192.168.56.102:6789 is reachable from the client node.
*192.168
Hi all, I'd like to know if cephfs is in heavy developement or it is ready
for production .
Documentation reports it is not for production but I think documentation
on ceph.com is not enough recent .
Regards
Ignazio
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I'm following quick start guide and have a ceph cluster with three nodes.
When I try to map image to block device my command hangs. This seems like a
kernel hang as the only way I was able to get out is via a hard reset of
the image. The following is my configuration. Any help is greatly
appreciate
After sending my earlier email, I found another commit that was merged in
March:
https://review.openstack.org/#/c/59149/
Seems to follow a newer image handling technique that was being sought
which prevented the first patch from being merged in...
Michael J. Kidd
Sr. Storage Consultant
Inktank Pr
Actually you can get the patched code from here for Havana :
https://github.com/jdurgin/nova/tree/havana-ephemeral-rbd
But i'm still trying to get it to work (in my case the volumes are still
copies, and not copy on write).
On Mon, May 19, 2014 at 7:19 AM, Michael J. Kidd
wrote:
> Since the sta
Since the status is 'Abandoned', it would appear that the fix has not been
merged into any release of OpenStack.
Thanks,
Michael J. Kidd
Sr. Storage Consultant
Inktank Professional Services
On Sun, May 18, 2014 at 5:13 PM, Yuming Ma (yumima) wrote:
> Wondering what is the status of this fix
>
On Mon, May 19, 2014 at 5:42 PM, Jay Janardhan wrote:
> (Sorry if this is a duplicate message - email server is acting up this
> morning).
>
>
> I'm following quick start guide and have a ceph cluster with three nodes.
> When I try to map image to block device my command hangs. This seems like a
>
(Sorry if this is a duplicate message - email server is acting up this
morning).
I'm following quick start guide and have a ceph cluster with three nodes.
When I try to map image to block device my command hangs. This seems like a
kernel hang as the only way I was able to get out is via a hard re
Nice to hear.
I would say its a good move from RH to hire you :-) , good luck and keep
contributing to ceph *core features*
as you already been doing.
- Karan Singh -
On 19 May 2014, at 12:21, Wido den Hollander wrote:
> On 05/19/2014 10:46 AM, Loic Dachary wrote:
>> Hi Ceph,
>>
>> TL;DR:
Hi Loic,
Thanks for the reply.
Thanks
Kumar
-Original Message-
From: Loic Dachary [mailto:l...@dachary.org]
Sent: Monday, May 19, 2014 6:04 PM
To: Gnan Kumar, Yalla; ceph-users@lists.ceph.com
Subject: Re: [ceph-users] Erasure coding
Hi,
The general idea to preserve resilience but sa
Hi,
The general idea to preserve resilience but save space compared to replication.
It costs more in terms of CPU and network. You will find a short introduction
here :
https://wiki.ceph.com/Planning/Blueprints/Dumpling/Erasure_encoding_as_a_storage_backend
https://wiki.ceph.com/Planning/Blue
Hi All,
What exactly is erasure coding and why is it used in ceph ? I could not get
enough explanatory information from the documentation.
Thanks
Kumar
This message is for the designated recipient only and may contain privileged,
proprietary, or otherwise con
Yehuda,
Never mind my last post, i've found the issue with the rule that you've
suggested. my fastcgi script is called differently, so that's why i was getting
the 404.
I've tried your rewrite rule and I am still having the same issues. The same
characters are failing with the rule you've su
On 05/19/2014 12:31 PM, Florent B wrote:
Hi all,
I use CephFS and I am wondering what does "metadata" pool contains exactly ?
It contains the directory structure of your filesystem
Its size is growing (multiple GB).
It seems that it stores all operations occurring in CephFS, but is it
tota
On 05/19/2014 10:46 AM, Loic Dachary wrote:
Hi Ceph,
TL;DR: I'm starting a new position at RedHat in the Ceph development team,
mid-august. I will keep working under the newly elected head of the Ceph User
Committee.
Cloudwatt is a company based in France which provides cloud services. My
pa
Hi Cedric,
No mug but ... let's discuss this at the booth. We will figure something out ;-)
Cheers
On 19/05/2014 10:48, Cedric Lemarchand wrote:
> Le 12/05/2014 19:14, Loic Dachary a écrit :
>> On 12/05/2014 11:00, Alexandre DERUMIER wrote:
>>> I'll be there !
> Will be there too !
>>>
>>>
>>> (
I have been trying to do live migration on vm which is running on rbd. But
so far, they only give me ' internal error: rbd username 'libvirt'
specified but secret not found' when i do live migration.
ceph-admin : source host
host : destination host
root@main:/home/ceph-admin# virsh migrate --live
Le 12/05/2014 19:14, Loic Dachary a écrit :
> On 12/05/2014 11:00, Alexandre DERUMIER wrote:
>> I'll be there !
Will be there too !
>>
>>
>> (Do you known if it'll be possible to buy some ceph t-shirts ?)
As a side note, have some mug ? ;-)
Cheers !
>>
>
> Absolutely ! If you want large quantities
Hi Ceph,
TL;DR: I'm starting a new position at RedHat in the Ceph development team,
mid-august. I will keep working under the newly elected head of the Ceph User
Committee.
Cloudwatt is a company based in France which provides cloud services. My
participation in Ceph (and erasure code specific
Yehuda,
I've tried the rewrite rule that you've suggested, but it is not working for
me. I get 404 when trying to access the service.
RewriteRule ^/(.*) /s3gw.3.fcgi?%{QUERY_STRING}
[E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]
Any idea what is wrong with this rule?
Cheers
Andrei
--
On Mon, May 19, 2014 at 12:19 AM, Arthur Tumanyan
wrote:
> Hi,
> I'm writing an fastcgi application, which just gets data from stdin and
> appends it to ceph.
> Please,have a look:
>
> while (0 != (written = fread(buffer, sizeof (char), sizeof
> buffer, stdin))) {
>
Hi,
I'm writing an fastcgi application, which just gets data from stdin and
appends it to ceph.
Please,have a look:
while (0 != (written = fread(buffer, sizeof (char), sizeof
buffer, stdin))) {
if (written < 0) {
logger("Error: %s\n", str
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