Am 18.08.2015 um 15:43 schrieb Campbell, Bill:
> Hey Stefan,
> Are you using your Ceph cluster for virtualization storage?
Yes
> Is dm-writeboost configured on the OSD nodes themselves?
Yes
Stefan
>
>
> *From: *"Stefan Pr
Hi everyone,
I has been used the cache-tier on a data pool.
After a long time, a lot of rbd images don't be displayed in "rbd -p
data ls".
Although that Images still show through "rbd info" and "rados ls" command.
rbd -p data info volume-008ae4f7-3464-40c0-80b0-51140d8b95a8
rbd image 'volu
On Tue, 18 Aug 2015 12:50:38 -0500 Mark Nelson wrote:
[snap]
> Probably the big question is what are the pain points? The most common
> answer we get when asking folks what applications they run on top of
> Ceph is "everything!". This is wonderful, but not helpful when trying
> to figure out
On Tue, 18 Aug 2015 20:48:26 +0100 Nick Fisk wrote:
[mega snip]
> 4. Disk based OSD with SSD Journal performance
> As I touched on above earlier, I would expect a disk based OSD with SSD
> journal to have similar performance to a pure SSD OSD when dealing with
> sequential small IO's. Currently th
Hi Sam,
> -Original Message-
> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
> Samuel Just
> Sent: 18 August 2015 21:38
> To: Nick Fisk
> Cc: ceph-users@lists.ceph.com
> Subject: Re: [ceph-users] any recommendation of using EnhanceIO?
>
> 1. We've kicked this
Hello.
I have a small Ceph cluster running 9 OSDs, using XFS on separate disks and
dedicated partitions on system disk for journals.
After creation it worked fine for a while. Then suddenly one of OSDs
stopped and didn't start. I had to recreate it. Recovery started.
After few days of recovery OSD
1. We've kicked this around a bit. What kind of failure semantics
would you be comfortable with here (that is, what would be reasonable
behavior if the client side cache fails)?
2. We've got a branch which should merge soon (tomorrow probably)
which actually does allow writes to be proxied, so th
> -Original Message-
> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
> Mark Nelson
> Sent: 18 August 2015 18:51
> To: Nick Fisk ; 'Jan Schermer'
> Cc: ceph-users@lists.ceph.com
> Subject: Re: [ceph-users] any recommendation of using EnhanceIO?
>
>
>
> On 0
> Op 18 aug. 2015 om 18:15 heeft Jan Schermer het volgende
> geschreven:
>
>
>> On 18 Aug 2015, at 17:57, Björn Lässig wrote:
>>
>> On 08/18/2015 04:32 PM, Jan Schermer wrote:
>>> Should ceph care about what scope the address is in? We don't specify it
>>> for ipv4 anyway, or is link-sco
> IE, should we be focusing on IOPS? Latency? Finding a way to avoid journal
> overhead for large writes? Are there specific use cases where we should
> specifically be focusing attention? general iscsi? S3? databases directly
> on RBD? etc. There's tons of different areas that we can work on
On 08/18/2015 11:52 AM, Nick Fisk wrote:
Here's kind of how I see the field right now:
1) Cache at the client level. Likely fastest but obvious issues like above.
RAID1 might be an option at increased cost. Lack of barriers in some
implementations scary.
Agreed.
2) Cache below the OS
> -Original Message-
> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
> Jan Schermer
> Sent: 18 August 2015 17:13
> To: Nick Fisk
> Cc: ceph-users@lists.ceph.com
> Subject: Re: [ceph-users] any recommendation of using EnhanceIO?
>
>
> > On 18 Aug 2015, at 16:44,
Yes, writeback mode. I didn't try anything else.
Jan
> On 18 Aug 2015, at 18:30, Alex Gorbachev wrote:
>
> HI Jan,
>
> On Tue, Aug 18, 2015 at 5:00 AM, Jan Schermer wrote:
>> I already evaluated EnhanceIO in combination with CentOS 6 (and backported
>> 3.10 and 4.0 kernel-lt if I remember co
> >>
> >> Here's kind of how I see the field right now:
> >>
> >> 1) Cache at the client level. Likely fastest but obvious issues like
> >> above.
> >> RAID1 might be an option at increased cost. Lack of barriers in some
> >> implementations scary.
> >
> > Agreed.
> >
> >>
> >> 2) Cache below t
HI Jan,
On Tue, Aug 18, 2015 at 5:00 AM, Jan Schermer wrote:
> I already evaluated EnhanceIO in combination with CentOS 6 (and backported
> 3.10 and 4.0 kernel-lt if I remember correctly).
> It worked fine during benchmarks and stress tests, but once we run DB2 on it
> it panicked within minute
On 08/18/2015 11:08 AM, Nick Fisk wrote:
-Original Message-
From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
Mark Nelson
Sent: 18 August 2015 15:55
To: Jan Schermer
Cc: ceph-users@lists.ceph.com; Nick Fisk
Subject: Re: [ceph-users] any recommendation of using E
> On 18 Aug 2015, at 17:57, Björn Lässig wrote:
>
> On 08/18/2015 04:32 PM, Jan Schermer wrote:
>> Should ceph care about what scope the address is in? We don't specify it for
>> ipv4 anyway, or is link-scope special in some way?
>
> fe80::/64 is on every ipv6 enabled interface ... thats diffe
> On 18 Aug 2015, at 16:44, Nick Fisk wrote:
>
>> -Original Message-
>> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
>> Mark Nelson
>> Sent: 18 August 2015 14:51
>> To: Nick Fisk ; 'Jan Schermer'
>> Cc: ceph-users@lists.ceph.com
>> Subject: Re: [ceph-users] a
> -Original Message-
> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
> Mark Nelson
> Sent: 18 August 2015 15:55
> To: Jan Schermer
> Cc: ceph-users@lists.ceph.com; Nick Fisk
> Subject: Re: [ceph-users] any recommendation of using EnhanceIO?
>
>
>
> On 08/18/2015
Also, what command are you using to take snapshots?
-Sam
On Tue, Aug 18, 2015 at 8:48 AM, Samuel Just wrote:
> Is the number of inconsistent objects growing? Can you attach the
> whole ceph.log from the 6 hours before and after the snippet you
> linked above? Are you using cache/tiering? Can y
On 08/18/2015 04:32 PM, Jan Schermer wrote:
Should ceph care about what scope the address is in? We don't specify it for
ipv4 anyway, or is link-scope special in some way?
fe80::/64 is on every ipv6 enabled interface ... thats different from
legacy ip.
And isn't this the correct syntax act
Is the number of inconsistent objects growing? Can you attach the
whole ceph.log from the 6 hours before and after the snippet you
linked above? Are you using cache/tiering? Can you attach the osdmap
(ceph osd getmap -o )?
-Sam
On Tue, Aug 18, 2015 at 4:15 AM, Voloshanenko Igor
wrote:
> ceph -
On 08/18/2015 09:24 AM, Jan Schermer wrote:
On 18 Aug 2015, at 15:50, Mark Nelson wrote:
On 08/18/2015 06:47 AM, Nick Fisk wrote:
Just to chime in, I gave dmcache a limited test but its lack of proper
writeback cache ruled it out for me. It only performs write back caching on
blocks al
> -Original Message-
> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
> Mark Nelson
> Sent: 18 August 2015 14:51
> To: Nick Fisk ; 'Jan Schermer'
> Cc: ceph-users@lists.ceph.com
> Subject: Re: [ceph-users] any recommendation of using EnhanceIO?
>
>
>
> On 08/18
On 18-08-15 16:32, Jan Schermer wrote:
> Should ceph care about what scope the address is in? We don't specify it for
> ipv4 anyway, or is link-scope special in some way?
>
Yes, link-local for IPv6 is special and has a link scope.
> And isn't this the correct syntax actually?
>
> cluster_net
Should ceph care about what scope the address is in? We don't specify it for
ipv4 anyway, or is link-scope special in some way?
And isn't this the correct syntax actually?
cluster_network = fe80::/64%cephnet
> On 18 Aug 2015, at 16:17, Wido den Hollander wrote:
>
>
>
> On 18-08-15 16:02, J
Hi Luis,
What i mean , we have three OSD with Harddisk size each 1TB and two
pool (poolA and poolB) with replica 2. Here writing behavior is the confusion
for us. Our assumptions is below.
PoolA -- may write with OSD1 and OSD2 (is this correct)
PoolB -- may write with OSD3 a
> On 18 Aug 2015, at 15:50, Mark Nelson wrote:
>
>
>
> On 08/18/2015 06:47 AM, Nick Fisk wrote:
>> Just to chime in, I gave dmcache a limited test but its lack of proper
>> writeback cache ruled it out for me. It only performs write back caching on
>> blocks already on the SSD, whereas I nee
On 18-08-15 16:02, Jan Schermer wrote:
> Shouldn't this:
>
> cluster_network = fe80::%cephnet/64
>
> be this:
> cluster_network = fe80::/64
> ?
That won't work since the kernel doesn't know the scope. So %devname is
right, but Ceph can't parse it.
Although it sounds cool to run Ceph over link
Shouldn't this:
cluster_network = fe80::%cephnet/64
be this:
cluster_network = fe80::/64
?
> On 18 Aug 2015, at 15:39, Björn Lässig wrote:
>
> Hi,
>
> i just setup my first ceph cluster and after breaking things for a while and
> let ceph repair itself, i want to setup the cluster network.
On 08/18/2015 06:47 AM, Nick Fisk wrote:
Just to chime in, I gave dmcache a limited test but its lack of proper
writeback cache ruled it out for me. It only performs write back caching on
blocks already on the SSD, whereas I need something that works like a Battery
backed raid controller cac
Hey Stefan,
Are you using your Ceph cluster for virtualization storage? Is dm-writeboost
configured on the OSD nodes themselves?
- Original Message -
From: "Stefan Priebe - Profihost AG"
To: "Mark Nelson" , ceph-users@lists.ceph.com
Sent: Tuesday, August 18, 2015 7:36:10 AM
Subject
Hi,
i just setup my first ceph cluster and after breaking things for a while
and let ceph repair itself, i want to setup the cluster network.
Unfortunately i am doing something wrong :-)
For not having any dependencies in my cluster network, i want to use
only ipv6 link-local addresses on in
I think it's pretty clear:
http://ceph.com/docs/master/install/manual-deployment/
"For example, when you run multiple clusters in a federated architecture, the
cluster name (e.g., us-west, us-east) identifies the cluster for the current
CLI session. Note: To identify the cluster name on the com
On 18-08-15 14:13, Erik McCormick wrote:
> I've got a custom named cluster integrated with Openstack (Juno) and
> didn't run into any hard-coded name issues that I can recall. Where are
> you seeing that?
>
> As to the name change itself, I think it's really just a label applying
> to a configur
> On 18 Aug 2015, at 13:58, Nick Fisk wrote:
>
>
>
>
>
>> -Original Message-
>> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
>> Jan Schermer
>> Sent: 18 August 2015 12:41
>> To: Nick Fisk
>> Cc: ceph-users@lists.ceph.com
>> Subject: Re: [ceph-users] How t
I've got a custom named cluster integrated with Openstack (Juno) and didn't
run into any hard-coded name issues that I can recall. Where are you seeing
that?
As to the name change itself, I think it's really just a label applying to
a configuration set. The name doesn't actually appear *in* the
co
> -Original Message-
> From: Emmanuel Florac [mailto:eflo...@intellique.com]
> Sent: 18 August 2015 12:26
> To: Nick Fisk
> Cc: 'Jan Schermer' ; 'Alex Gorbachev' integration.com>; 'Dominik Zalewski' ; ceph-
> us...@lists.ceph.com
> Subject: Re: [ceph-users] any recommendation of using Enh
This should be simple enough
mv /etc/ceph/ceph-prod.conf /etc/ceph/ceph.conf
No? :-)
Or you could set this in nova.conf:
images_rbd_ceph_conf=/etc/ceph/ceph-prod.conf
Obviously since different parts of openstack have their own configs, you'd have
to do something similiar for cinder/glance... s
> -Original Message-
> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
> Jan Schermer
> Sent: 18 August 2015 12:41
> To: Nick Fisk
> Cc: ceph-users@lists.ceph.com
> Subject: Re: [ceph-users] How to improve single thread sequential reads?
>
> Reply in text
>
>
Hi,
Does anyone know what steps should be taken to rename a Ceph cluster?
Btw, is it ever possbile without data loss?
Background: I have a cluster named "ceph-prod" integrated with
OpenStack, however I found out that the default cluster name "ceph" is
very much hardcoded into OpenStack so I decid
Just to chime in, I gave dmcache a limited test but its lack of proper
writeback cache ruled it out for me. It only performs write back caching on
blocks already on the SSD, whereas I need something that works like a Battery
backed raid controller caching all writes.
It's amazing the 100x perfo
I did not. Not sure why now - probably for the same reason I didn't extensively
test bcache.
I'm not a real fan of device mapper though, so if I had to choose I'd still go
for bcache :-)
Jan
> On 18 Aug 2015, at 13:33, Mark Nelson wrote:
>
> Hi Jan,
>
> Out of curiosity did you ever try dm-
Reply in text
> On 18 Aug 2015, at 12:59, Nick Fisk wrote:
>
>
>
>> -Original Message-
>> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
>> Jan Schermer
>> Sent: 18 August 2015 11:50
>> To: Benedikt Fraunhofer > users.ceph.com.toasta@traced.net>
>> Cc: cep
We're using an extra caching layer for ceph since the beginning for our
older ceph deployments. All new deployments go with full SSDs.
I've tested so far:
- EnhanceIO
- Flashcache
- Bcache
- dm-cache
- dm-writeboost
The best working solution was and is bcache except for it's buggy code.
The curre
Hmm,
looks like intended behaviour:
CommitDate: Mon Mar 3 06:08:42 2014 -0800
worker: process all bucket instance log entries at once
Currently if there are more than max_entries in a single bucket
instance's log, only max_entries of those will be processed, and the
bucket instance w
Hi Jan,
Out of curiosity did you ever try dm-cache? I've been meaning to give
it a spin but haven't had the spare cycles.
Mark
On 08/18/2015 04:00 AM, Jan Schermer wrote:
I already evaluated EnhanceIO in combination with CentOS 6 (and backported 3.10
and 4.0 kernel-lt if I remember correct
Le Tue, 18 Aug 2015 10:12:59 +0100
Nick Fisk écrivait:
> > Bcache should be the obvious choice if you are in control of the
> > environment. At least you can cry on LKML's shoulder when you lose
> > data :-)
>
> Please note, it looks like the main(only?) dev of Bcache has started
> making a ne
ceph - 0.94.2
Its happen during rebalancing
I thought too, that some OSD miss copy, but looks like all miss...
So any advice in which direction i need to go
2015-08-18 14:14 GMT+03:00 Gregory Farnum :
> From a quick peek it looks like some of the OSDs are missing clones of
> objects. I'm not sur
>From a quick peek it looks like some of the OSDs are missing clones of
objects. I'm not sure how that could happen and I'd expect the pg
repair to handle that but if it's not there's probably something
wrong; what version of Ceph are you running? Sam, is this something
you've seen, a new bug, or s
On Mon, Aug 17, 2015 at 8:21 PM, Patrik Plank wrote:
> Hi,
>
>
> have a ceph cluster witch tree nodes and 32 osds.
>
> The tree nodes have 16Gb memory but only 5Gb is in use.
>
> Nodes are Dell Poweredge R510.
>
>
> my ceph.conf:
>
>
> [global]
> mon_initial_members = ceph01
> mon_host = 10.0.0.20
> -Original Message-
> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
> Jan Schermer
> Sent: 18 August 2015 11:50
> To: Benedikt Fraunhofer users.ceph.com.toasta@traced.net>
> Cc: ceph-users@lists.ceph.com; Nick Fisk
> Subject: Re: [ceph-users] How to impro
On Mon, Aug 17, 2015 at 4:12 AM, Yan, Zheng wrote:
> On Mon, Aug 17, 2015 at 9:38 AM, Eric Eastman
> wrote:
>> Hi,
>>
>> I need to verify in Ceph v9.0.2 if the kernel version of Ceph file
>> system supports ACLs and the libcephfs file system interface does not.
>> I am trying to have SAMBA, versi
I'm not sure if I missed that but are you testing in a VM backed by RBD device,
or using the device directly?
I don't see how blk-mq would help if it's not a VM, it just passes the request
to the underlying block device, and in case of RBD there is no real block
device from the host perspective
> -Original Message-
> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
> Benedikt Fraunhofer
> Sent: 18 August 2015 11:25
> To: Nick Fisk
> Cc: ceph-users@lists.ceph.com
> Subject: Re: [ceph-users] How to improve single thread sequential reads?
>
> Hi Nick,
>
> d
On 18-08-15 12:25, Benedikt Fraunhofer wrote:
> Hi Nick,
>
> did you do anything fancy to get to ~90MB/s in the first place?
> I'm stuck at ~30MB/s reading cold data. single-threaded-writes are
> quite speedy, around 600MB/s.
>
> radosgw for cold data is around the 90MB/s, which is imho limitte
Hi Nick,
did you do anything fancy to get to ~90MB/s in the first place?
I'm stuck at ~30MB/s reading cold data. single-threaded-writes are
quite speedy, around 600MB/s.
radosgw for cold data is around the 90MB/s, which is imho limitted by
the speed of a single disk.
Data already present on the
Hi!
>How many nodes? How many SSDs/OSDs?
2 Nodes, each:
- 1xE5-2670, 128G,
- 2x146G SAS 10krpm - system + MON root
- 10x600G SAS 10krpm + 7x900G SAS 10krpm single drive RAID0 on lsi2208
- 2x400G SSD Intel DC S3700 on С602 - for separate SSD pool
- 2x200G SSD Intel DC S3700 on SATA3- for ceph jour
> -Original Message-
> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
> Jan Schermer
> Sent: 18 August 2015 10:01
> To: Alex Gorbachev
> Cc: Dominik Zalewski ; ceph-users@lists.ceph.com
> Subject: Re: [ceph-users] any recommendation of using EnhanceIO?
>
> I
I already evaluated EnhanceIO in combination with CentOS 6 (and backported 3.10
and 4.0 kernel-lt if I remember correctly).
It worked fine during benchmarks and stress tests, but once we run DB2 on it it
panicked within minutes and took all the data with it (almost literally - files
that werent
Hi Mark,
>>Yep! At least from what I've seen so far, jemalloc is still a little
>>faster for 4k random writes even compared to tcmalloc with the patch +
>>128MB thread cache. Should have some data soon (mostly just a
>>reproduction of Sandisk and Intel's work).
I definitively switch to jemmalo
Hi!
You can run mons on the same hosts, though it is not recommemned. MON daemon
itself are not resurce hungry - 1-2 cores and 2-4 Gb RAM is enough in most small
installs. But there are some pitfalls:
- MONs use LevelDB as a backstorage, and widely use direct write to ensure DB
consistency.
So, i
No. This will no help (((
I try to found data, but it's look exist with same time stamp on all osd or
missing on all osd ...
So, need advice , what I need to do...
вторник, 18 августа 2015 г. пользователь Abhishek L написал:
>
> Voloshanenko Igor writes:
>
> > Hi Irek, Please read careful )))
>
Le 14/08/2015 15:48, Pierre BLONDEAU a écrit :
> Hy,
>
> Yesterday, I removed 5 ods on 15 from my cluster ( machine migration ).
>
> When I stopped the processes, I haven't verified that all the pages were
> in active stat. I removed the 5 ods from the cluster ( ceph osd out
> osd.9 ; ceph osd cr
Hi,
from the doc of radosgw-agent and some items in this list, I understood
that the max-entries argument was there to prevent a very active bucket
to keep the other buckets from keeping synced. In our agent logs however
we saw a lot of "bucket instance bla has 1000 entries after bla", and
the age
No. This will no help (((
I try to found data, but it's look exist with same time stamp on all osd or
missing on all osd ...
So, need advice , what I need to do...
вторник, 18 августа 2015 г. пользователь Abhishek L написал:
>
> Voloshanenko Igor writes:
>
> > Hi Irek, Please read careful )))
>
Voloshanenko Igor writes:
> Hi Irek, Please read careful )))
> You proposal was the first, i try to do... That's why i asked about
> help... (
>
> 2015-08-18 8:34 GMT+03:00 Irek Fasikhov :
>
>> Hi, Igor.
>>
>> You need to repair the PG.
>>
>> for i in `ceph pg dump| grep inconsistent | grep -v '
67 matches
Mail list logo
