Re: [Treebase-devel] load balancing treebase?

[Mattison W. <mat...@ne...>]

The web server would load balance by session such that a session would
always be handled by the same tomcat instance (unless the instance
failed).

On Wed, Jul 25, 2012 at 9:11 AM, Rutger Vos <rut...@gm...> wrote:
> I think there is a potential for problems with uploads/submissions
> (where physical files are being processed by mesquite). In the
> scenario that you're describing, how are sessions managed? I.e. would
> a session be handled from start to finish by the same tomcat instance?
>
> On Wed, Jul 25, 2012 at 2:52 PM, Mattison Ward
> <mat...@ne...> wrote:
>> Is treebase written in such a way that having multiple tomcat
>> application servers would work?
>>
>> Is all data written to and read from the database or does curation
>> involve files in a directory somewhere?
>>
>> If we maintained one web server and one database server, but multiple
>> tomcat servers then a problem with one of the tomcat servers would not
>> make the site stop responding for everyone.
>>
>> The site has been pretty stable for the last few weeks, but during
>> certain periods, certain file uploads and downloads cause tomcat to
>> stop responding until restarted.  I have automated the restarting as
>> much as possible, but load balancing is an option we might want to
>> consider for the future.
>>
>> Regards,
>>
>> Mattison Ward
>> NESCent at Duke University
>>
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>
>
>
> --
> Dr. Rutger A. Vos
> Bioinformaticist
> NCB Naturalis
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Mattison Ward
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