[plt-scheme] Web Server : page expires on form submission.

From: Jay McCarthy (jay.mccarthy at gmail.com)
Date: Fri Apr 17 08:25:49 EDT 2009

Can you say how long of a delay you had before these problems showed up?


On Fri, Apr 17, 2009 at 3:37 AM, Veer <diggerrrrr at gmail.com> wrote:
> Thanks! , increasing memory threshold to 128MB seems to work.
> Veer
> On Fri, Apr 17, 2009 at 1:02 PM, Noel Welsh <noelwelsh at gmail.com> wrote:
>> Three options:
>> Switch to serve/servlet, and specify your own theshold-LRU-manager
>> with a higher memory threshold
>> Write your servlets in the "stateless" web language
>> Write your code to use less memory
>> The problem is thus: you're storing continuations in the server's
>> memory. This memory must be reclaimed eventually. The default
>> continuation manager reclaims memory at a slow rate when memory
>> consumption is less than 64MB, and a very fast rate when that
>> threshold is exceeded. If you see page expired after a short (< 4
>> hours) delay it means your using more than 64MB. You can either set a
>> higher threshold, serialize continuations to {the client|disk} or use
>> less memory.
>> N.
>> On Fri, Apr 17, 2009 at 8:19 AM, Veer <diggerrrrr at gmail.com> wrote:
>>>> Change the continuation manager. What continuation manager are you using?
>>> I really don't know  :) , i just followed the blog example from the manual .
>>> Only thing that is included is  #lang web-server/insta .
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Jay McCarthy <jay at cs.byu.edu>
Assistant Professor / Brigham Young University

"The glory of God is Intelligence" - D&C 93

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