I have some experience with an EC set-up with 2 shards per host, failure-domain
is host, and also some multi-site wishful thinking of users. What I learned are
the following:
1) Avoid this work-around too few hosts for EC rule at all cost. There are two
types of resiliency in ceph. One is again
I was thinking of going to the Polish one, but I will be tempted to go
to the London one, if you also be wearing this Kilt. ;D
-Original Message-
From: John Hearns [mailto:hear...@googlemail.com]
Sent: donderdag 24 oktober 2019 8:14
To: ceph-users
Subject: [ceph-users] Cloudstack and
(Slightly abbreviated)
Den tors 24 okt. 2019 kl 09:24 skrev Frank Schilder :
> What I learned are the following:
>
> 1) Avoid this work-around too few hosts for EC rule at all cost.
>
> 2) Do not use EC 2+1. It does not offer anything interesting for
> production. Use 4+2 (or 8+2, 8+3 if you hav
Hi,
ceph features
{
"mon": {
"group": {
"features": "0x3ffddff8eeacfffb",
"release": "luminous",
"num": 3
}
},
"osd": {
"group": {
"features": "0x3ffddff8eeacfffb",
"release": "luminous",
On 2019-10-24 09:46, Janne Johansson wrote:
(Slightly abbreviated)
Den tors 24 okt. 2019 kl 09:24 skrev Frank Schilder mailto:fr...@dtu.dk>>:
What I learned are the following:
1) Avoid this work-around too few hosts for EC rule at all cost.
2) Do not use EC 2+1. It does not offe
There are plenty of posts in this list. Please search a bit. Example threads
are:
What's the best practice for Erasure Coding
large concurrent rbd operations block for over 15 mins!
Can't create erasure coded pools with k+m greater than hosts?
And many more. As you will see there, k=2,m=1 is bad
Hello all,
I've been using the Ceph kernel modules in Ubuntu to load a CephFS filesystem
quite successfully for several months. Yesterday, I went through a round of
updates on my Ubuntu 18.04 machines, which loaded linux-image-5.0.0-32-generic
as the kernel. I'm noticing that while the kernel
Could it be related to the broken backport as described in
https://tracker.ceph.com/issues/40102 ?
(It did affect 4.19, not sure about 5.0)
Paul
--
Paul Emmerich
Looking for help with your Ceph cluster? Contact us at https://croit.io
croit GmbH
Freseniusstr. 31h
81247 München
www.croit.io
Tel
Also, search for this topic on the list. Ubuntu Disco with most recent
Kernel 5.0.0-32 seems to be instable
On Thu, Oct 24, 2019 at 10:45 AM Paul Emmerich
wrote:
> Could it be related to the broken backport as described in
> https://tracker.ceph.com/issues/40102 ?
>
> (It did affect 4.19, not
On Thu, Oct 24, 2019 at 5:45 PM Paul Emmerich wrote:
>
> Could it be related to the broken backport as described in
> https://tracker.ceph.com/issues/40102 ?
>
> (It did affect 4.19, not sure about 5.0)
It does, I have just updated the linked ticket to reflect that.
Thanks,
Ilya
Hi Neale,
On Fri, Oct 18, 2019 at 9:31 AM Pickett, Neale T wrote:
>
> Last week I asked about a rogue inode that was causing ceph-mds to segfault
> during replay. We didn't get any suggestions from this list, so we have been
> familiarizing ourselves with the ceph source code, and have added th
It's not clear what the problem is to me. Please try increasing the
debugging on your MDS and share a snippet (privately to me if you
wish). Other information would also be helpful like `ceph status` and
what kind of workloads these clients are running.
On Fri, Oct 18, 2019 at 7:22 PM Lei Liu wro
Hi Konstantin,
connections coming from qemu vm clients.
Best regards
Gesendet: Donnerstag, 24. Oktober 2019 um 09:47 Uhr
Von: "Konstantin Shalygin"
An: ceph-users@lists.ceph.com, "Jan Peters"
Betreff: Re: [ceph-users] ceph balancer do not start
Hi,
ceph features
{
"mon": {
"
Hi, list,
Currently my ceph nodes with 3 MON and 9 OSDs, everything is fine. Now
I plan to add onre more public network, the initial public network is
103.x/24, and the target network is 109.x/24. And 103 cannot reach 109, as
I don't config route table for them.
I add 109.x for 3 MON node
I follow https://docs.ceph.com/docs/mimic/rados/operations/add-or-rm-mons/
to add MON for 109.x.
On Fri, Oct 25, 2019 at 11:27 AM luckydog xf wrote:
> Hi, list,
>
> Currently my ceph nodes with 3 MON and 9 OSDs, everything is fine. Now
> I plan to add onre more public network, the initial
Hi,cephers
I try to two expand test in bluestore.
First test is expands db lv which osd have separate block and db and
wal, after runs ceph-bluestore-tool buefs-bdev-expand --path XX, it
works well. perf dump shows the correct db size.
Second test is expands block lv which osd do not have separ
connections coming from qemu vm clients.
It's generally easy to upgrade. Just switch your Ceph yum repo from
jewel to luminous.
Then update `librbd` on your hypervisors and migrate your VM's. It's
fast and without downtime of your VM's.
k
___
ce
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