I understand this but in the case of MS SQL it will use all the memory that is available to Windows. As in my case a DDC with SQL was using 31.5gb of ram while looking in perfmon. But the system offering was limited to 8GB.
Basically Dynamic Scales works but is bad for SQL servers. I just turned it off. On Tuesday, September 15, 2015, Somesh Naidu <somesh.na...@citrix.com> wrote: > Well, that defect is considered a doc defect from CCP/CS perspective so > there are no code changes involved. After listing the limitation in the CCP > 4.5 release notes the defect is marked as fixed. > > > > The behavior is controlled/affected by how XS DMC works and how Windows > guests view available memory. Windows guests always see static-max whereas > the usable memory (allowed by Xen) for the guest can never exceed > dynamic-max. In case of dynamic scaling, CCP/CS sets static-max higher (4 > times dynamic-min) than dynamic-max. The memory represented by static-max – > dynamic-max is occupied by XS balloon driver (contained in the XS tools) > which inflates/deflates based on dynamic memory scaling requests. > > > > Essentially, what Windows guests reports as available memory is incorrect. > The functionality itself isn’t affected, that is, the actual memory > available to the Windows guest is correct. > > > > Somesh > > CloudPlatform Escalations > > Citrix Systems, Inc. > > > > *From:* Todd Pigram [mailto:t...@toddpigram.com > <javascript:_e(%7B%7D,'cvml','t...@toddpigram.com');>] > *Sent:* Tuesday, September 15, 2015 11:33 AM > *To:* Somesh Naidu > *Cc:* CloudStack Users > *Subject:* Re: Dynamic Scalable Template issue > > > > Is this fixed in 4.5.1 as the issue is not listed in the release notes > under CS-27425/CS-21217? > > > > As a FYI, on the one VM the new tools worked but not on any others. I had > to set ‘enable.dynamic.scale.vm’ to false, restart management service. Then > I have to shutdown the instance. then start, to get the right memory. A > reboot doesn’t fix it. > > > > > > > > Todd Pigram > http://about.me/ToddPigram > www.linkedin.com/in/toddpigram/ > > @pigram86 on twitter > https://plus.google.com/+ToddPigram86 > > Mobile - 216-224-5769 > > > > PGP Public Key > <http://pgp.mit.edu/pks/lookup?op=get&search=0x96B7B0F0C55933BB> > > > > On Sep 15, 2015, at 11:11 AM, Somesh Naidu <somesh.na...@citrix.com > <javascript:_e(%7B%7D,'cvml','somesh.na...@citrix.com');>> wrote: > > > > A similar issue is listed in CCP 4.5 release notes – look for > “CS-27425/CS-21217”. > > Somesh > CloudPlatform Escalations > Citrix Systems, Inc. > > From: Todd Pigram [mailto:t...@toddpigram.com > <javascript:_e(%7B%7D,'cvml','t...@toddpigram.com');>] > Sent: Wednesday, September 09, 2015 11:22 AM > To: CloudStack Users > Subject: Re: Dynamic Scalable Template issue > > Well its seems to be a XS Tools issue. I am waiting to here back from > support on the ‘Official’ word, but with the new tools installed and the > Dynamic Scalable option set, I am currently running like I was before the > upgrade to CCP 4.3.0.2. > > At this point it is closed. > > Thanks for the help. > > Todd Pigram > http://about.me/ToddPigram > www.linkedin.com/in/toddpigram/<http://www.linkedin.com/in/toddpigram/ > <http://www.linkedin.com/in/toddpigram/%3chttp:/www.linkedin.com/in/toddpigram/> > > > @pigram86 on twitter > https://plus.google.com/+ToddPigram86 > Mobile - 216-224-5769 > > PGP Public Key< > http://pgp.mit.edu/pks/lookup?op=get&search=0x96B7B0F0C55933BB> > > On Sep 9, 2015, at 10:53 AM, Vadim Kimlaychuk < > va...@kickcloud.net<mailto:va...@kickcloud.net > <javascript:_e(%7B%7D,'cvml','va...@kickcloud.net%5Cx3cmailto:va...@kickcloud.net');>>> > wrote: > > Todd, > > Is VM guest shows the correct amount of RAM? Is this issue resolved? > > Vadim. > > On 2015-09-09 15:34, Todd Pigram wrote: > > > Vadium, > Yes to both with the new tools from XS62ESP1028. Both Windows and CentOS > have 'Dynamic Scalable' Option selected and in XenCenter they show the > correct RAM. > Todd Pigram > http://about.me/ToddPigram [1] > www.linkedin.com/in/toddpigram/<http://www.linkedin.com/in/toddpigram/ > <http://www.linkedin.com/in/toddpigram/%3chttp:/www.linkedin.com/in/toddpigram/>> > [2] @pigram86 on twitter > https://plus.google.com/+ToddPigram86 [3] Mobile - 216-224-5769 > PGP Public Key [4] > On Sep 9, 2015, at 2:49 AM, Vadim Kimlaychuk < > va...@kickcloud.net<mailto:va...@kickcloud.net > <javascript:_e(%7B%7D,'cvml','va...@kickcloud.net%5Cx3cmailto:va...@kickcloud.net');>>> > wrote: > Todd, > Have you tried to do the following manual tests on the cluster where you > have problem: > 1. Dynamically scalable with CentOS ? > 2. Dynamically scalable with Windows ? > What do they show as available RAM? > Regards, > On 2015-09-08 19:44, Todd Pigram wrote: > Vadium, > After installing XS62ESP1028 via CLI (no reboot on hosts yet) and building > an Centos65 instance w/o 'Dynamic Scalable' option checked, it showed right > in XenCenter. I installed the new tools from (XS62ESP1028) and still good. > I created a template from this instance. Deployed said template, and the > memory is still good in XenCenter. > I tested on a Windows VM and it is the same with the new tools, however, > as this particular tenant bypasses the virtual router, I have to reboot > twice and reset networking as the new XenTools reset the networking stack. > Todd Pigram > http://about.me/ToddPigram [1] [1] > www.linkedin.com/in/toddpigram/<http://www.linkedin.com/in/toddpigram/ > <http://www.linkedin.com/in/toddpigram/%3chttp:/www.linkedin.com/in/toddpigram/>> > [2] [2] @pigram86 on twitter > https://plus.google.com/+ToddPigram86 [3] [3] Mobile - 216-224-5769 > PGP Public Key [4] > On Sep 6, 2015, at 4:57 AM, Vadim Kimlaychuk < > va...@kickcloud.net<mailto:va...@kickcloud.net > <javascript:_e(%7B%7D,'cvml','va...@kickcloud.net%5Cx3cmailto:va...@kickcloud.net');>>> > wrote: > Todd, > Can you try Linux template with same dynamic scale option on the same > pool? I wonder if there is a problem with Windows or any guest OS. > Regards, > Vadim. > On 2015-09-05 21:04, Todd Pigram wrote: > Vadium > That makes sense. I will see if I can replicate the issue in a lab. But > given the holiday weekend, might not be until next week > On Saturday, September 5, 2015, Vadim Kimlaychuk < > va...@kickcloud.net<mailto:va...@kickcloud.net > <javascript:_e(%7B%7D,'cvml','va...@kickcloud.net%5Cx3cmailto:va...@kickcloud.net');>>> > wrote: > Todd, > I have seeing similar problem with Xen 4.1 (not XenServer). Linux guests > were able to see (and use) entire host resources on any guest VM. That was > a bug of configuration. If you think about what could be different after CS > update - it could be VM registration procedure. Still guest VM should not > be able to see static max. Your XenCenter shows that effective dynamic VM > memory size is 8Gb while maximium is 32Gb. So CS configured VM guest > correctly. This is problem of hypervisor <-> guest VM communitcation. That > is why I asked you to try to register VM manually. I believe you will have > the same result. Than means your server pool of XS62ESP1027 is broken. 3 > other pools are not. I see no reason to update to 4.5.1, because I think > this is not the problem of CS, but particularly this XenServer pool + this > type of Windows guest (if other templates with dynamic offer are good). > Vadim. > On 2015-09-05 14:45, Todd Pigram wrote: > Vadim > I have 3 other pools (1 XS6.2sp1 and 2x xs65sp1) I have no issue with > these. > Based on the Design doc, what i was experiencing is by design. Ok I will > turn it off. > But now my question is, why on 4.3 I didn't have this issue but after > installing 4.3.0.2 it changed. > Was 4.3 broken or is 4.3.0.2? Will upgrading to CCP 4.5.1 will be better? > If this is truely by design, I will not be able to use dynamic scalable > for my windows instances > On Saturday, September 5, 2015, Vadim Kimlaychuk < > va...@kickcloud.net<mailto:va...@kickcloud.net > <javascript:_e(%7B%7D,'cvml','va...@kickcloud.net%5Cx3cmailto:va...@kickcloud.net');>>> > wrote: > Todd, > You may try to create VM at XenServer without CloudStack just using XE > tool (or XenCenter). If your manually created VM with static max <> dynamic > max will be OK, then there is a problem with Cloudstack. > Vadim. > On 2015-09-04 21:51, Todd Pigram wrote: > Latest as of XS62ESP1027. I know XS62ESP1028 comes with new XenTools. > On Friday, September 4, 2015, Vadim Kimlaychuk < > va...@kickcloud.net<mailto:va...@kickcloud.net > <javascript:_e(%7B%7D,'cvml','va...@kickcloud.net%5Cx3cmailto:va...@kickcloud.net');>>> > wrote: > I am afraid this issue has nothing to do with Cloudstack. If VM "sees" > maximum memory size available instead of effective -- this is problem of > hypervisor and/or guest utilities. Do you have guest utilities that come > with XenServer version or older in your template? > Vadim. > On 2015-09-04 19:34, Todd Pigram wrote: > Ok. After rebooting the instance still no change after disabling globally. > I modified all my templates to remove 'Dynamic Scalable', then I have to > shutdown every instance and unselect 'Dynamic Scalable', then restart for > it to be correct. > This may need to be looked at closer for a Windows/XenDesktop(XenApp) > environment as MS SQL will consume all the RAM windows sees. > My other question is why CCP 4.3 (which is certified for Citrix Ready for > IaaS for XD) didn't have this issue until I upgraded to 4.3.0.2 in July. > This feature was released in 4.2..... > Thanks for all the help. > Todd Pigram > http://about.me/ToddPigram [1] [1] [1] [1] [1] [1 [1]] > <http://about.me/ToddPigram > [1] [1] [1] [1 [1]] [5] > [5]<http://about.me/ToddPigram%20%5b1%5d%20%5b1%5d%20%5b1%5d%20%5b1%20%5b1%5d%5d%20%5b5%5d%20%5b5%5d > <http://about.me/ToddPigram%20%5b1%5d%20%5b1%5d%20%5b1%5d%20%5b1%20%5b1%5d%5d%20%5b5%5d%20%5b5%5d%3chttp:/about.me/ToddPigram%20%5b1%5d%20%5b1%5d%20%5b1%5d%20%5b1%20%5b1%5d%5d%20%5b5%5d%20%5b5%5d> > >> > www.linkedin.com/in/toddpigram/<http://www.linkedin.com/in/toddpigram/ > <http://www.linkedin.com/in/toddpigram/%3chttp:/www.linkedin.com/in/toddpigram/>> > [2] [2] [2] [2] [2] [2 [2]] < > http://www.linkedin.com/in/toddpigram/ [2] [2] [2] [2] [2] [2 [2]]> > @pigram86 on twitter > https://plus.google.com/+ToddPigram86 [3] [3] [3] [3] [3] [3 [3]] < > https://plus.google.com/+ToddPigram86 [3] [3] [3] [3] [3] [3 [3]]> > Mobile - 216-224-5769 > PGP Public Key < > http://pgp.mit.edu/pks/lookup?op=get&search=0x96B7B0F0C55933BB [4] [4] > [4] [4] [4] [4 [5]]> On > Sep 4, 2015, at 12:04 PM, Todd Pigram < > t...@toddpigram.com<mailto:t...@toddpigram.com > <javascript:_e(%7B%7D,'cvml','t...@toddpigram.com%5Cx3cmailto:t...@toddpigram.com');>>> > wrote: > Thanks. > Just funny that on CCP 4.3 it wasn't an issue and only after upgrading to > 4.3.0.2 and a host reboot did it change my instances. > This issue is that the instance below is a SQL server. As Windows see > 32GB, it shows the used RAM in windows as 31.6GB. The Server only has 8GB. > That is what really is the issue. Causing slowness for my users. > I have set 'enable.dynamic.scale.vm' to false and restarted > cloudstack-management. I will reboot an instance that is out of prod and > let you know the results. > Todd Pigram > http://about.me/ToddPigram [1] [1] [1] [1] [1] [1 [1]] > <http://about.me/ToddPigram > [1] [1] [1] [1 [1]] [5] > [5]<http://about.me/ToddPigram%20%5b1%5d%20%5b1%5d%20%5b1%5d%20%5b1%20%5b1%5d%5d%20%5b5%5d%20%5b5%5d > <http://about.me/ToddPigram%20%5b1%5d%20%5b1%5d%20%5b1%5d%20%5b1%20%5b1%5d%5d%20%5b5%5d%20%5b5%5d%3chttp:/about.me/ToddPigram%20%5b1%5d%20%5b1%5d%20%5b1%5d%20%5b1%20%5b1%5d%5d%20%5b5%5d%20%5b5%5d> > >> > www.linkedin.com/in/toddpigram/<http://www.linkedin.com/in/toddpigram/ > <http://www.linkedin.com/in/toddpigram/%3chttp:/www.linkedin.com/in/toddpigram/>> > [2] [2] [2] [2] [2] [2 [2]] < > http://www.linkedin.com/in/toddpigram/ [2] [2] [2] [2] [2] [2 [2]]> > @pigram86 on twitter > https://plus.google.com/+ToddPigram86 [3] [3] [3] [3] [3] [3 [3]] < > https://plus.google.com/+ToddPigram86 [3] [3] [3] [3] [3] [3 [3]]> > Mobile - 216-224-5769 > PGP Public Key < > http://pgp.mit.edu/pks/lookup?op=get&search=0x96B7B0F0C55933BB [4] [4] > [4] [4] [4] [4 [5]]> On > Sep 4, 2015, at 11:41 AM, Vadim Kimlaychuk < > va...@kickcloud.net<mailto:va...@kickcloud.net > <javascript:_e(%7B%7D,'cvml','va...@kickcloud.net%5Cx3cmailto:va...@kickcloud.net');>> > <mailto: > va...@kickcloud.net<mailto:va...@kickcloud.net > <javascript:_e(%7B%7D,'cvml','%5cx0bva...@kickcloud.net%5Cx3cmailto:va...@kickcloud.net');>>>> > wrote: > Hello Todd, > If I understood you correctly, you wonder why you have static max as 4x > of the offering, isn't it? This article should answer your question: > > https://cwiki.apache.org/confluence/display/CLOUDSTACK/Dynamic+scaling+of+CPU+and+RAM#DynamicscalingofCPUandRAM-Xenserver > [6] [6] [5] [5] [6] > [5] < > > https://cwiki.apache.org/confluence/display/CLOUDSTACK/Dynamic+scaling+of+CPU+and+RAM#DynamicscalingofCPUandRAM-Xenserver > [6] [6] [5] [5] [6] > [5]> > Look chapter for XenServer changes. As it is stated there: static max = > f_min (4 * service_offering) / memory_overprovisioning_of_cluster > Regards, > Vadim. > On 2015-09-04 17:41, Todd Pigram wrote: > Just wondering if anyone has seen similar. I already have a case open. > But seeing if the forum has an answer? > Issue, Upgraded to CCP 4.3.0.2 back in July. Afterwards everything was > great. Hosts rebooted two weeks ago. Any instance built with a template > with Dynamic Scalable set to yes, shows in XenCenter as min/max memory as > what system offering is but has a Static Max of 4x the RAM. > Screen shot of instance built from template with Dynamic Scalable = yes > > > > -- Todd Pigram http://about.me/ToddPigram www.linkedin.com/in/toddpigram/ @pigram86 on twitter https://plus.google.com/+ToddPigram86 Mobile - 216-224-5769 PGP Public Key <http://pgp.mit.edu/pks/lookup?op=get&search=0x96B7B0F0C55933BB>
