Alex, thanks for sharing the solution - but this is more for a professional like us - for a regular customer - this is simply not the solution - he/she wants regular snapshot, 1 click - done.
There are always workarrounds for any kind of problems - but we are talking here about the need for right solution, not a workarround - at least from customer side. And we are using cloudstack here :) so I want to use the GUI for snapshoting as it already works for Xen - we just need implementation for KVM. Thanks anyway, Cheers On 1 November 2014 04:03, Alexey Zilber <alexeyzil...@gmail.com> wrote: > Andrija, > > What we used to do at a big provider with AWS, say a VM has multiple > attached volumes with mysql running across all of them (one for data, > another for binary logs, say another for relay logs), is if the filesystem > supports freezing, you can freeze the fs, then snapshot one by one. So for > XFS for example, this would be xfs_freeze. There's creative ways of doing > this, combining filesystem features and LVM. You can also do similar > things with ZFS. > > -Alex > > On Sat, Nov 1, 2014 at 12:50 AM, Andrija Panic <andrija.pa...@gmail.com> > wrote: > > > Andrei - I agree 100% with you - fancy stuff, new features, and basic > ones > > needs to be fixed - snapshoting, custom vxlan MTU and so on, GUI > > brokne/buggy, and so on. > > > > We have customer who wants to do 90 days snapshoting and possibility to > > revert back - with this approach coping from primary to secondary volume, > > simple 50GB volume X 90 days = 4.5 TB of data on secondary storage - for > > me, this is nonsese... snapshots needs to stay on primary storage (must > be > > shared storage I undestand etc..) > > > > Anyway, we agree, let see if the issues get fixed by chance :) > > Cheers > > > > On 31 October 2014 17:33, Andrei Mikhailovsky <and...@arhont.com> wrote: > > > > > Andrija, > > > > > > Also, I might add that the snapshotting should not take a long time, > like > > > what's currently happening with KVM. It takes absolutely ages for the > > > snapshot to complete while the image is being copied from primary to > > > secondary storage. If you have a bunch of volumes you want to snapshot, > > > they just take up all the queue and eventually timeout. Try taking a > > > snapshot of about 50+ volumes at the same time, which is not very > > uncommon > > > for a medium infrastructure, let alone a large cloud. Things will get > > > broken pretty quickly. > > > > > > Even if you are using ceph storage with the built in capabilities for > > > doing rbd snapshotting, this mechanism is still somewhat broken and > > buggy. > > > For instance, it would be nice to have a working ability to keep the > > > snapshots on the primary storage to remove this time consuming > > > primary-secondary storage coping, but this feature has been broken for > > > about a year already with no prospects of being fixed as far as I can > > tell. > > > > > > So, as it stands at the moment, looking from the customer perspective, > > the > > > snapshotting is broken with KVM and needs to be addressed asap. Not > > really > > > sure why this is not a priority for the dev team? It seems that the > team > > is > > > pushing those fancy features into the new releases without > concentrating > > on > > > the basics of what the clients want. Very frustrating for the clients > ((( > > > > > > Andrei > > > ----- Original Message ----- > > > > > > > From: "Andrija Panic" <andrija.pa...@gmail.com> > > > > To: users@cloudstack.apache.org > > > > Sent: Friday, 31 October, 2014 3:35:20 PM > > > > Subject: Re: XenServer > > > > > > > Nux, I agree that we need to push that - but since I'm not a > > > > develoepr, no > > > > reall use of me :) If I need to push somewhere, just let me know. > > > > Anyway, user want a single click SNAPSHOT - and an option for revert > > > > - > > > > talking about public cloud.... > > > > > > > Cheers > > > > > > > On 31 October 2014 16:18, Nux! <n...@li.nux.ro> wrote: > > > > > > > > Andrija, > > > > > > > > > > AFAIK you can't snapshot all the volumes in the exact same moment, > > > > > but I > > > > > am not sure if it really needed in your case. > > > > > VM snapshot it's what you would need, only supported for Xenserver > > > > > and > > > > > VMware; we need to push for VM snapshot for KVM as well, I know > > > > > it's > > > > > possible as I have done it manually with "virsh". > > > > > > > > > > There are different ways around a problem though, if you are > > > > > running mysql > > > > > with innodb for example you could just do a mysqldump (with > > > > > --single-transaction to avoid locking the tables). > > > > > > > > > > HTH > > > > > Lucian > > > > > > > > > > -- > > > > > Sent from the Delta quadrant using Borg technology! > > > > > > > > > > Nux! > > > > > www.nux.ro > > > > > > > > > > ----- Original Message ----- > > > > > > From: "Andrija Panic" <andrija.pa...@gmail.com> > > > > > > To: users@cloudstack.apache.org > > > > > > Sent: Friday, 31 October, 2014 15:10:26 > > > > > > Subject: Re: XenServer > > > > > > > > > > > Nux, > > > > > > > > > > > > I understand this - but a question for you - you have i.e. 3 > > > > > > volumes > > > > > > attached to a VM - how do you snapshot those and make sure they > > > > > > are > > > > > > snapshoted in the EXACT same moment, to preserve data integrity > > > > > > of the > > > > > data > > > > > > inside VM - you have i.e. database files on 1 volume, database > > > > > > logs on > > > > > > another. > > > > > > > > > > > > This is a reall question, not kidding ? What I know, you can > > > > > > turnoff VM, > > > > > > and then snapshot one by one - but this is not the goal of the > > > > > > snapshotting... > > > > > > ? > > > > > > > > > > > > Thanks > > > > > > > > > > > > > > > > > > > > > > > > On 31 October 2014 16:06, Nux! <n...@li.nux.ro> wrote: > > > > > > > > > > > >> Andrija, > > > > > >> > > > > > >> You can still do volume snapshotting with KVM, works fine. > > > > > >> > > > > > >> > > > > > > > > > > > http://www.nux.ro/archive/2014/01/Taking_KVM_volume_snapshots_with_Cloudstack_4_2_on_CentOS_6_5.html > > > > > >> > > > > > >> All we need is a way to quickly restore the volume, some guys at > > > > > leaseweb > > > > > >> were working on something like this, hope to see this feature in > > > > > >> future > > > > > >> versions. > > > > > >> > > > > > >> -- > > > > > >> Sent from the Delta quadrant using Borg technology! > > > > > >> > > > > > >> Nux! > > > > > >> www.nux.ro > > > > > >> > > > > > >> ----- Original Message ----- > > > > > >> > From: "Andrija Panic" <andrija.pa...@gmail.com> > > > > > >> > To: users@cloudstack.apache.org > > > > > >> > Sent: Friday, 31 October, 2014 09:37:49 > > > > > >> > Subject: Re: XenServer > > > > > >> > > > > > >> > My vote also for KVM snapshooting - having all the nice > > > > > >> > fetaures, but > > > > > >> > without basic virtualization stuff like snapshotting - it > > > > > >> > simply > > > > > drives > > > > > >> me > > > > > >> > and our client nuts... > > > > > >> > > > > > > >> > On 31 October 2014 10:03, Andrei Mikhailovsky > > > > > >> > <and...@arhont.com> > > > > > wrote: > > > > > >> > > > > > > >> >> Is there a feature request for this support or should we open > > > > > >> >> one? I > > > > > >> would > > > > > >> >> like to see this implemented for KVM. > > > > > >> >> > > > > > >> >> Andrei > > > > > >> >> ----- Original Message ----- > > > > > >> >> > > > > > >> >> > From: "Nux!" <n...@li.nux.ro> > > > > > >> >> > To: users@cloudstack.apache.org > > > > > >> >> > Sent: Thursday, 30 October, 2014 11:25:10 PM > > > > > >> >> > Subject: Re: XenServer > > > > > >> >> > > > > > >> >> > Andrei, I am hopeful the next incarnation of XenServer will > > > > > >> >> > be much > > > > > >> >> > better/modern, with support for CEPH, GlusterFS etc. > > > > > >> >> > > > > > >> >> > Re KVM snapshotting, KVM can do live snapshots of the > > > > > volumes+memory > > > > > >> >> > (you can do it with "virsh"), but ACS doesn't support it; > > > > > >> >> > forgot > > > > > >> >> > why. > > > > > >> >> > > > > > >> >> > Lucian > > > > > >> >> > > > > > >> >> > -- > > > > > >> >> > Sent from the Delta quadrant using Borg technology! > > > > > >> >> > > > > > >> >> > Nux! > > > > > >> >> > www.nux.ro > > > > > >> >> > > > > > >> >> > ----- Original Message ----- > > > > > >> >> > > From: "Andrei Mikhailovsky" <and...@arhont.com> > > > > > >> >> > > To: users@cloudstack.apache.org > > > > > >> >> > > Sent: Thursday, 30 October, 2014 21:24:06 > > > > > >> >> > > Subject: Re: XenServer > > > > > >> >> > > > > > >> >> > > I would happily switch to XenServer once they will have > > > > > >> >> > > ceph > > > > > >> >> > > support. I do > > > > > >> >> > > prefer XenServer and the feature list of ACS + XenServer > > > > > >> >> > > is a bit > > > > > >> >> > > better. > > > > > >> >> > > > > > > > >> >> > > It sucks not having proper snapshotting in KVM where one > > > > > >> >> > > can > > > > > create > > > > > >> >> > > the whole vm > > > > > >> >> > > snapshot (volumes + memory) very quickly without the need > > > > > >> >> > > to > > > > > bother > > > > > >> >> > > snapshotting every volume and wait for ages. > > > > > >> >> > > > > > > > >> >> > > Andrei > > > > > >> >> > > ----- Original Message ----- > > > > > >> >> > > > > > > > >> >> > >> From: "motty cruz" <motty.c...@gmail.com> > > > > > >> >> > >> To: users@cloudstack.apache.org > > > > > >> >> > >> Sent: Thursday, 30 October, 2014 8:43:32 PM > > > > > >> >> > >> Subject: Re: XenServer > > > > > >> >> > > > > > > > >> >> > >> I am no expert by any means but my personal opinion, I > > > > > >> >> > >> really > > > > > like > > > > > >> >> > >> XenServer a lot better. I have a cluster of about 5 > > > > > >> >> > >> machines > > > > > >> >> > >> running > > > > > >> >> > >> KVM, > > > > > >> >> > >> ACS 4.3. I unable to do snapshot, migrating VMs from one > > > > > >> >> > >> host to > > > > > >> >> > >> another > > > > > >> >> > >> takes a long time. I had a very bad experience with > > > > > >> >> > >> "Balloon > > > > > >> >> > >> driver", > > > > > >> >> > >> I am > > > > > >> >> > >> traumatize using KVM. > > > > > >> >> > > > > > > > >> >> > >> XenServer don't need to install cloudstack agent is > > > > > >> >> > >> already > > > > > >> >> > >> integrated. I > > > > > >> >> > >> am very happy with XenServer. I still need to work out a > > > > > >> >> > >> few > > > > > >> >> > >> lingering > > > > > >> >> > >> issues but thus far am a happy person. > > > > > >> >> > > > > > > > >> >> > >> Thanks, > > > > > >> >> > >> -Motty > > > > > >> >> > > > > > > > >> >> > >> On Thu, Oct 30, 2014 at 1:15 PM, Andrei Mikhailovsky > > > > > >> >> > >> <and...@arhont.com> > > > > > >> >> > >> wrote: > > > > > >> >> > > > > > > > >> >> > >> > I wold love to see the ability to do proper > > > > > >> >> > >> > snapshotting on > > > > > KVM. > > > > > >> >> > >> > XenServer > > > > > >> >> > >> > does it so much better! > > > > > >> >> > >> > > > > > > >> >> > >> > ----- Original Message ----- > > > > > >> >> > >> > > > > > > >> >> > >> > > From: "Vladimir Melnik" <v.mel...@uplink.ua> > > > > > >> >> > >> > > To: users@cloudstack.apache.org > > > > > >> >> > >> > > Sent: Thursday, 30 October, 2014 8:09:17 PM > > > > > >> >> > >> > > Subject: RE: XenServer > > > > > >> >> > >> > > > > > > >> >> > >> > > Oh, thank you so much, folks, for your replies on > > > > > >> >> > >> > > this > > > > > topic! > > > > > >> >> > >> > > Now > > > > > >> >> > >> > > I > > > > > >> >> > >> > > understand that I shouldn't migrate to XenServer, as > > > > > >> >> > >> > > I > > > > > already > > > > > >> >> > >> > > have > > > > > >> >> > >> > > a bunch of hosts running KVM and it really won't be > > > > > >> >> > >> > > a good > > > > > >> >> > >> > > idea > > > > > >> >> > >> > > to > > > > > >> >> > >> > > bread such a zoo. > > > > > >> >> > >> > > > > > > >> >> > >> > > The only thing that makes me feel envy is an ability > > > > > >> >> > >> > > to > > > > > change > > > > > >> >> > >> > > configuration of a virtual machine without > > > > > >> >> > >> > > restarting it. > > > > > As I > > > > > >> >> > >> > > know, > > > > > >> >> > >> > > KVM doesn't support it yet, am I right? Other > > > > > >> >> > >> > > XenServer > > > > > >> >> > >> > > features > > > > > >> >> > >> > > don't seem to be so exciting to me :) > > > > > >> >> > >> > > > > > > >> >> > >> > > One more time - thanks to all who have helped me to > > > > > >> >> > >> > > decide > > > > > not > > > > > >> >> > >> > > to > > > > > >> >> > >> > > do > > > > > >> >> > >> > > something that I would regret. > > > > > >> >> > >> > > > > > > >> >> > >> > > Best regards, > > > > > >> >> > >> > > V. > > > > > >> >> > >> > > > > > > >> >> > > > > > > > >> >> > >> -- > > > > > >> >> > >> Thanks for your support, > > > > > >> >> > > > Motty > > > > > >> >> > > > > > >> > > > > > > >> > > > > > > >> > > > > > > >> > -- > > > > > >> > > > > > > >> > Andrija Panić > > > > > >> > -------------------------------------- > > > > > >> > http://admintweets.com > > > > > >> > -------------------------------------- > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > > > > > Andrija Panić > > > > > > -------------------------------------- > > > > > > http://admintweets.com > > > > > > -------------------------------------- > > > > > > > > > > > > -- > > > > > > > Andrija Panić > > > > -------------------------------------- > > > > http://admintweets.com > > > > -------------------------------------- > > > > > > > > > > > -- > > > > Andrija Panić > > -------------------------------------- > > http://admintweets.com > > -------------------------------------- > > > -- Andrija Panić -------------------------------------- http://admintweets.com --------------------------------------
