[Xen-API] [XCP-BUG] High amount of NFSv3 "getattr" from Pool Master

2012-10-23 Thread R J
Hello List, I have multiple Pools of XCP1.1 and XCP1.5beta. I'm sorry but I dont have production XCP1.6b to check it. There is a strange issue on Pool master where NFS v3 "getattr" % is very high. Slave nodes are damn low on "getattr" % #nfsstat on Master node gives me getattr % as 76% leaving lo

Re: [Xen-API] [Squeezd] Disabling some balancing features

2012-10-23 Thread Mike McClurg
On 23/10/12 15:47, Dave Scott wrote: > This is probably worth fixing, I'll make a pull request a bit later (unless > you beat me to it :-) > > Thanks, > Dave Ha, no, I'll let you fix it :P Kakadu, this fix probably won't make it into XCP or XenServer for a while, so if you want to recompile xap

Re: [Xen-API] [Squeezd] Disabling some balancing features

2012-10-23 Thread Dave Scott
> On 23/10/12 14:15, Dave Scott wrote: > > In case it's useful: the most recent versions of xapi (found in > XenServer 6.1 and should be in XCP 1.6) can run without squeezed. So > you can > > > > service squeezed stop > > > > and then when you try to start a VM, there won't be any squeezing at >

[Xen-API] Code in xen-api-libs/rpc-light

2012-10-23 Thread Dave Scott
Hi, FYI the code in http://github.com/xen-org/xen-api-libs/tree/master/rpc-light is now significantly different from the upstream http://github.com/samoht/ocaml-rpc It's now moderately difficult to move patches from one to the other. I think we should attempt to abandon our fork of this libr

Re: [Xen-API] [Squeezd] Disabling some balancing features

2012-10-23 Thread Kakadu
Mike, > ... seems to show xenopsd trying to rebalance memory, While migration general balance memory rpc is called before whole process (in pool_migrate_nolock funtion). Also while migration reserving memory involves the same algorithm described in squeeze.ml Squeezer module via calling Squeezed.

Re: [Xen-API] [Squeezd] Disabling some balancing features

2012-10-23 Thread Mike McClurg
On 23/10/12 14:15, Dave Scott wrote: > In case it's useful: the most recent versions of xapi (found in XenServer 6.1 > and should be in XCP 1.6) can run without squeezed. So you can > > service squeezed stop > > and then when you try to start a VM, there won't be any squeezing at all. > Your ne

Re: [Xen-API] [Squeezd] Disabling some balancing features

2012-10-23 Thread Kakadu
Dave, While migration xapi reserves some memory doing calls to squeezed. Moreover migration process will fail with Failure("The ballooning daemon is not running") if squeezed is stopped. I think problem is more complex than you've desribed :) Cheers! On Tue, Oct 23, 2012 at 5:24 PM, Dave Scott

Re: [Xen-API] [Squeezd] Disabling some balancing features

2012-10-23 Thread Dave Scott
> > In case it's useful: the most recent versions of xapi (found in > XenServer 6.1 and should be in XCP 1.6) can run without squeezed. > > If squeezed is stopped such functions like migration (and maybe > others) can be broken, don't they? The operations will work as long as there is already eno

Re: [Xen-API] [Squeezd] Disabling some balancing features

2012-10-23 Thread Kakadu
> In case it's useful: the most recent versions of xapi (found in XenServer 6.1 > and should be in XCP 1.6) can run without squeezed. If squeezed is stopped such functions like migration (and maybe others) can be broken, don't they? Best wishes, Kakadu On Tue, Oct 23, 2012 at 5:15 PM, Dave Scot

Re: [Xen-API] [Squeezd] Disabling some balancing features

2012-10-23 Thread Dave Scott
Hi, Dave asked: > > When you try to migrate to a host which hasn't got much free memory, > do you intend to run the existing squeezing logic? Kakadu replied: > Nope, it should do nothing. In future another balooning daemon will be > running and case there is not enough ememory never gonna happen.

Re: [Xen-API] 1.6 for production use

2012-10-23 Thread Lars Kurth
OOps, I should have read my mail properly: see http://lists.xen.org/archives/html/xen-api/2012-10/msg00146.html On 23/10/2012 10:22, Lars Kurth wrote: Hi, a mail from Mike, the project lead detailing the way forward should be on its way today. From what I understand there are a few bugs that

Re: [Xen-API] 1.6 for production use

2012-10-23 Thread Lars Kurth
Hi, a mail from Mike, the project lead detailing the way forward should be on its way today. From what I understand there are a few bugs that need fixing. It is likely that there will be another beta shortly, with some time for testing to identify additional issues/verify that the discovered o