cloudstack-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Vadim Kimlaychuk <va...@kickcloud.net>
Subject Re: Dynamic Scalable Template issue
Date Wed, 09 Sep 2015 06:49:07 GMT
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]
> 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 6, 2015, at 4:57 AM, Vadim Kimlaychuk <vadim@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 <vadim@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 <vadim@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 <vadim@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]] 
> <http://about.me/ToddPigram [1] [1] [1] [1 [1]] [5]>
> www.linkedin.com/in/toddpigram/ [2] [2] [2] [2] [2 [2]] <
> http://www.linkedin.com/in/toddpigram/ [2] [2] [2] [2] [2 [2]]>
> @pigram86 on twitter
> https://plus.google.com/+ToddPigram86 [3] [3] [3] [3] [3 [3]] <
> https://plus.google.com/+ToddPigram86 [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 [5]]> On
> Sep 4, 2015, at 12:04 PM, Todd Pigram <todd@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]] 
> <http://about.me/ToddPigram [1] [1] [1] [1 [1]] [5]>
> www.linkedin.com/in/toddpigram/ [2] [2] [2] [2] [2 [2]] <
> http://www.linkedin.com/in/toddpigram/ [2] [2] [2] [2] [2 [2]]>
> @pigram86 on twitter
> https://plus.google.com/+ToddPigram86 [3] [3] [3] [3] [3 [3]] <
> https://plus.google.com/+ToddPigram86 [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 [5]]> On
> Sep 4, 2015, at 11:41 AM, Vadim Kimlaychuk <vadim@kickcloud.net 
> <mailto:
> vadim@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] [5] [5] [6]
> [5] <
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/Dynamic+scaling+of+CPU+and+RAM#DynamicscalingofCPUandRAM-Xenserver

> [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


Mime
View raw message