[Building Sakai] Sakai on VMware?
Adrian Fish
a.fish at lancaster.ac.uk
Tue Feb 15 08:22:55 PST 2011
Fair enough. Thanks for getting back. I'm currently looking into
virtualising a cluster here, so your mail on the list was timely!
Cheers,
Adrian.
On 15/02/2011 12:36, Coetzee, Nico wrote:
> This message (and attachments) is subject to restrictions and a
> disclaimer. Please refer to http://www.unisa.ac.za/disclaimer for full
> details.
> ------------------------------------------------------------------------
>
> Hi Adrian
>
> No, there is no particular reason.
>
> The reason why we have a 32bit server is, when we started with vmware
> (about 3 year's ago) the ESX server version did not support 64bit
> machines. We had this machine since then, and it works (We felt not
> to fix something that is not broken). We will in the near future
> upgrade the pound machine and the fileserver machine to 64bit.
>
> Cheers
>
>
> On 15 Feb 2011, at 12:25 PM, Adrian Fish wrote:
>
>> Hi Nico,
>>
>> Is there any particular reason you went for 32bit on the Pound server?
>>
>> Cheers,
>>
>> Adrian.
>>
>> On 03/02/2011 09:02, Coetzee, Nico wrote:
>>> This message (and attachments) is subject to restrictions and a
>>> disclaimer. Please refer to http://www.unisa.ac.za/disclaimer for
>>> full details.
>>> ------------------------------------------------------------------------
>>>
>>> Hi Bryan
>>>
>>> We at UNISA are also running SAKAI on VMWARE ESX SERVER except for
>>> the DATABASE (oracle).
>>>
>>> Our setup is as follows
>>>
>>> 1. One Load Balancer Machine and Log File Server (all or nodes
>>> tomcat & Apache logs are logged to to this machine) (Load balancing
>>> software POUND http://www.apsis.ch/pound/)
>>> OS: UBUNTU
>>> Mem : 4096MB
>>> CPU's : 2
>>> HDD: 40G
>>> (32bit)
>>>
>>> 2. One "File Server"
>>> OS: UBUNTU
>>> Mem: 4096MB
>>> CPU's: 2
>>> HDD: 100G
>>> (32bit)
>>>
>>> 3. 10x NODES
>>> OS: UBUNTU
>>> Mem : 8192MB
>>> CPU's: 2
>>> HDD: 10G
>>> (64bit)
>>>
>>>
>>> All of our nodes are running 2 tomcat's and are front ended with
>>> apache. We currently do not have any performance problems. For the
>>> last six months (since upgrading to sakai2.6), we only changed the
>>> nodes to 64Bit machine's to allocate more memory to the JVM's.
>>>
>>> Our student stats for last year (2010) was :
>>>
>>> Number of students joining : 112 599
>>> Number of Visits by students : 12 421 735
>>> Number of Active Students: 230 134
>>>
>>> For 2011 so far:
>>>
>>> Number of students joining : 19 489
>>> Number of Visits by students: 1 380 909
>>> Number of Active Students: 112 225
>>>
>>>
>>> Hope this will help you
>>>
>>>
>>> On 02 Feb 2011, at 6:41 PM, Bryan Bakotich wrote:
>>>
>>>> Thanks for all the information!
>>>>
>>>> I guess I should've been a little more clear. We already have our
>>>> installation split up into a couple servers.
>>>>
>>>> 1. Apache in front of a 6GB Tomcat on a Physical machine
>>>> 2. Our MySQL db is on a separate machine that was virtualized
>>>> about 6 months ago
>>>> 3. And LDAP has it's own physical machine
>>>>
>>>> Virtualizing MySQL gave us some performance issues for the first
>>>> month or so, but we've finally found the right mix of settings and
>>>> it's not an issue anymore.
>>>>
>>>> We only have the one application server though and that is what we
>>>> are trying to virtualize. It sounds like enough people are doing
>>>> this without too many problems so I think we'll go for it. I'm
>>>> hoping once we're virtualized I can get extra VMs so we can have a
>>>> couple smaller tomcats instead of one 6GB tomcat.
>>>>
>>>> -Bryan
>>>>
>>>> On Wed, Feb 2, 2011 at 7:30 AM, Martin B. Smith <smithmb at ufl.edu
>>>> <mailto:smithmb at ufl.edu>> wrote:
>>>>
>>>> On 02/01/2011 11:14 PM, Bryan Bakotich wrote:
>>>>
>>>> Hi all,
>>>>
>>>> I have been getting asked by our systems team to move our
>>>> Sakai app
>>>> server to a VM. Has anybody else has done this and is the
>>>> performance
>>>> good enough for production?
>>>>
>>>> We are currently running only one app server on real
>>>> hardware with a
>>>> heap size of 6GB. We are using VMware vSphere 4, and the OS
>>>> of the VM
>>>> would be CentOS 5.
>>>>
>>>> Any insight is much appreciated. The only info I found
>>>> about this
>>>> relating to Sakai was in this thread:
>>>> http://collab.sakaiproject.org/pipermail/production/2009-March/000021.html
>>>>
>>>> -Bryan
>>>>
>>>>
>>>> Hi Bryan,
>>>>
>>>> We use VMware for everything except NFS and Database (Oracle).
>>>> Our 10 application nodes (6gb heaps, RHEL x86_64) and 4 web
>>>> frontends work great under vSphere 4 with the latest tools.
>>>>
>>>> Have you looked at the production deployments JIRA tickets?
>>>> You'll probably find a lot more detail there:
>>>> http://jira.sakaiproject.org/browse/PROD
>>>>
>>>> Cheers,
>>>> --
>>>> Martin B. Smith
>>>> smithmb at ufl.edu <mailto:smithmb at ufl.edu> - (352) 273-1374
>>>> CNS/Open Systems Group
>>>> University of Florida
>>>>
>>>>
>>>> _______________________________________________
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>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Bryan Bakotich
>>>> Open Source Implementation Specialist
>>>> Digital Media Center, Information & Technology Services
>>>> Pacific Lutheran University
>>>> Tacoma, WA 98447-0013
>>>> Phone: 253-536-5021
>>>
>>>
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>>
>> --
>> ==================================
>> Adrian Fish
>> Software Engineer
>> Centre for e-Science
>> Bowland Tower South C Floor
>> Lancaster University
>> Lancaster
>> LA1 4YW
>> email:a.fish at lancaster.ac.uk
>>
>> http://confluence.sakaiproject.org/display/YAFT/Yaft
>> http://confluence.sakaiproject.org/display/CLOG/Home
>> http://confluence.sakaiproject.org/display/BBB/Home
--
==================================
Adrian Fish
Software Engineer
Centre for e-Science
Bowland Tower South C Floor
Lancaster University
Lancaster
LA1 4YW
email: a.fish at lancaster.ac.uk
http://confluence.sakaiproject.org/display/YAFT/Yaft
http://confluence.sakaiproject.org/display/CLOG/Home
http://confluence.sakaiproject.org/display/BBB/Home
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