Re: [Treebase-devel] load balancing downloads

[William P. <wil...@ya...>]

Hi Mattison,

This sounds great, thanks. 

While load-balancing might be a problem for the Dryad push handshaking, it should not be a problem for downloads-only (e.g. the purls). 

bp

On Dec 4, 2012, at 9:14 AM, Mattison Ward wrote:

> Hi all.
> 
> During some recent testing by the Open Tree of Life folks, I was
> reminded that the Treebase site can stop responding if it gets many
> rapid requests to download files in nexml format and, to a lesser
> extent, in the other formats.  I realized that it would take a trivial
> amount of effort to load balance the Tomcat download processing to
> some idle servers we have available.  All other requests except
> downloads would still be served by the current web server.  This
> avoids having to worry about session persistance and file uploads.  Of
> course, this does not speed up downloads of files in any format, but
> it does give us a pipeline so the site can handle several concurrent
> downloads without locking up.
> 
> I have this set up now (and caching turned off for testing) on
> treebase-dev.nescent.org.   Hilmar has approved using the idle systems
> for load balancing.  Unless someone objects, I would like to enable
> this load balancing of file downloads on the production site at
> treebase.org on Thursday morning.
> 
> Regards,
> 
> Mattison