How about starting where we said to start. Serving binary data from the DB is
a very specific and resource intensive 'need' - so specific in fact that in
9.5 years of web development I have NEVER had to do it.

Also, checking the information that AD told you to check out would be a good
idea.. and the previous hint to post code so someone might be able to point
out what might be a totally different issue somewhere else in your source...



gearb0x wrote:
> 
> 
> Ive never had this problem before on other apps where i have used
> similar techniques, and if i wait for the whole page to load before i
> make the second request everything takes less than a second. I really
> have no idea where to start :S
> 
> On Sep 11, 1:43 pm, abba bryant <[EMAIL PROTECTED]> wrote:
>> My guess would be that outputting binary blobs through a script ( meanign
>> an
>> http request, a db request, a second http request + output ) for each
>> image
>> is simply taking a long time.
>>
>> I wouldn't be surprised if outputting binary data like images was in some
>> fashion a synchronous event either by design or by virtue of there being
>> too
>> few spare cpu cycles to handle a great deal of them.
>>
>> I might also be totally wrong, I can't be sure without some sort of
>> example
>> site or code.
>>
>>
>>
>> gearb0x wrote:
>>
>> > Hey guys,
>>
>> > Ive had a similar problem to this on an unrelated cake project before
>> > (unrelated other than being programed by me as pointed out by someone
>> > on IRC last night :P)
>>
>> > Whats happening is if i don't let a page load 100% before i click a
>> > link on it cake will take 1min+ to answer the requests. I cant
>> > replicate this on my dev environment, i believe its just because the
>> > pages load too quick (compared to a slow connection over the internet)
>>
>> > A little background on my app:
>>
>> > Any configurable images are stored in the db (i don't need anyone
>> > telling me this is wrong) so as such, when loading a page with lots of
>> > images stored in the DB, there are lots of requests going to the
>> > server for cake stuff. there is a site search page which just sends a
>> > query string to the index action that filters the data, then you can
>> > view the sites details
>>
>> > The problem:
>> > If i click search, then click a site detail link BEFORE the page has
>> > 100% loaded (images etc). The server appears to hang. I thought it was
>> > the server crashing but after waiting long enough the site loads fine.
>> > Ive replicated the problem on my server and used live http headers to
>> > capture them, you can see the times of the requests from the replys:
>>
>> > http://***.***.***.***/.dev/gpts/city-of-monash/sites/index?q=&x=6&y=6
>>
>> > GET /.dev/gpts/city-of-monash/sites/index?q=&x=6&y=6 HTTP/1.1
>> > Host: ***.***.***.***
>> > User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
>> > 1.8.1.6) Gecko/20070725 Firefox/2.0.0.6
>> > Accept: text/xml,application/xml,application/xhtml+xml,text/
>> > html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
>> > Accept-Language: en-us,en;q=0.7,zh;q=0.3
>> > Accept-Encoding: gzip,deflate
>> > Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
>> > Keep-Alive: 300
>> > Connection: keep-alive
>> > Referer: http://***.***.***.***/.dev/gpts/city-of-monash/sites/search
>> > Cookie: CAKEPHP=be8ffe7fcc1167c98d43f0d139f09456
>>
>> > HTTP/1.x 200 OK
>> > Date: Tue, 11 Sep 2007 02:23:59 GMT
>> > Server: Apache/2.0.52 (Red Hat)
>> > X-Powered-By: PHP/4.3.9
>> > P3P: CP="NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"
>> > Content-Type: text/html; charset=UTF-8
>> > X-Cache: MISS from proxy.cbr.infinite.net.au
>> > Via: 1.0 proxy.cbr.infinite.net.au:3128 (squid/2.6.STABLE14)
>> > Connection: close
>> > ----------------------------------------------------------
>> > http://***.***.***.***/.dev/gpts/photos/view/19
>>
>> > GET /.dev/gpts/photos/view/19 HTTP/1.1
>> > Host: ***.***.***.***
>> > User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
>> > 1.8.1.6) Gecko/20070725 Firefox/2.0.0.6
>> > Accept: image/png,*/*;q=0.5
>> > Accept-Language: en-us,en;q=0.7,zh;q=0.3
>> > Accept-Encoding: gzip,deflate
>> > Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
>> > Keep-Alive: 300
>> > Connection: keep-alive
>> > Referer:
>> > http://***.***.***.***/.dev/gpts/city-of-monash/sites/index?q=&x=6&y=6
>> > Cookie: CAKEPHP=be8ffe7fcc1167c98d43f0d139f09456
>>
>> > HTTP/1.x 200 OK
>> > Date: Tue, 11 Sep 2007 02:24:00 GMT
>> > Server: Apache/2.0.52 (Red Hat)
>> > X-Powered-By: PHP/4.3.9
>> > P3P: CP="NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"
>> > Content-Length: 31359
>> > content-disposition: inline; filename="headerTEST2.jpg"
>> > Content-Description: PHP Generated Data
>> > Content-Type: image/jpeg
>> > X-Cache: MISS from proxy.cbr.infinite.net.au
>> > Via: 1.0 proxy.cbr.infinite.net.au:3128 (squid/2.6.STABLE14)
>> > Connection: keep-alive
>> > ----------------------------------------------------------
>> > http://***.***.***.***/.dev/gpts/city-of-monash/photos/view/1
>>
>> > GET /.dev/gpts/city-of-monash/photos/view/1 HTTP/1.1
>> > Host: ***.***.***.***
>> > User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
>> > 1.8.1.6) Gecko/20070725 Firefox/2.0.0.6
>> > Accept: image/png,*/*;q=0.5
>> > Accept-Language: en-us,en;q=0.7,zh;q=0.3
>> > Accept-Encoding: gzip,deflate
>> > Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
>> > Keep-Alive: 300
>> > Connection: keep-alive
>> > Referer:
>> > http://***.***.***.***/.dev/gpts/city-of-monash/sites/index?q=&x=6&y=6
>> > Cookie: CAKEPHP=be8ffe7fcc1167c98d43f0d139f09456
>>
>> > HTTP/1.x 200 OK
>> > Date: Tue, 11 Sep 2007 02:24:00 GMT
>> > Server: Apache/2.0.52 (Red Hat)
>> > X-Powered-By: PHP/4.3.9
>> > P3P: CP="NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"
>> > Content-Length: 23408
>> > content-disposition: inline; filename="Monash_logo.jpg"
>> > Content-Description: PHP Generated Data
>> > Content-Type: image/jpeg
>> > X-Cache: MISS from proxy.cbr.infinite.net.au
>> > Via: 1.0 proxy.cbr.infinite.net.au:3128 (squid/2.6.STABLE14)
>> > Connection: keep-alive
>> > ----------------------------------------------------------
>> > http://***.***.***.***/.dev/gpts/city-of-monash/sites/view/2
>>
>> > GET /.dev/gpts/city-of-monash/sites/view/2 HTTP/1.1
>> > Host: ***.***.***.***
>> > User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
>> > 1.8.1.6) Gecko/20070725 Firefox/2.0.0.6
>> > Accept: text/xml,application/xml,application/xhtml+xml,text/
>> > html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
>> > Accept-Language: en-us,en;q=0.7,zh;q=0.3
>> > Accept-Encoding: gzip,deflate
>> > Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
>> > Keep-Alive: 300
>> > Connection: keep-alive
>> > Referer:
>> > http://***.***.***.***/.dev/gpts/city-of-monash/sites/index?q=&x=6&y=6
>> > Cookie: CAKEPHP=be8ffe7fcc1167c98d43f0d139f09456
>>
>> > HTTP/1.x 200 OK
>> > Date: Tue, 11 Sep 2007 02:24:01 GMT
>> > Server: Apache/2.0.52 (Red Hat)
>> > X-Powered-By: PHP/4.3.9
>> > P3P: CP="NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"
>> > Content-Type: text/html; charset=UTF-8
>> > X-Cache: MISS from proxy.cbr.infinite.net.au
>> > Via: 1.0 proxy.cbr.infinite.net.au:3128 (squid/2.6.STABLE14)
>> > Connection: close
>> > ----------------------------------------------------------
>> > http://***.***.***.***/.dev/gpts/photos/view/19
>>
>> > GET /.dev/gpts/photos/view/19 HTTP/1.1
>> > Host: ***.***.***.***
>> > User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
>> > 1.8.1.6) Gecko/20070725 Firefox/2.0.0.6
>> > Accept: image/png,*/*;q=0.5
>> > Accept-Language: en-us,en;q=0.7,zh;q=0.3
>> > Accept-Encoding: gzip,deflate
>> > Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
>> > Keep-Alive: 300
>> > Connection: keep-alive
>> > Referer: http://***.***.***.***/.dev/gpts/city-of-monash/sites/view/2
>> > Cookie: CAKEPHP=be8ffe7fcc1167c98d43f0d139f09456
>>
>> > HTTP/1.x 200 OK
>> > Date: Tue, 11 Sep 2007 02:26:02 GMT
>> > Server: Apache/2.0.52 (Red Hat)
>> > X-Powered-By: PHP/4.3.9
>> > P3P: CP="NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"
>> > Content-Length: 31359
>> > content-disposition: inline; filename="headerTEST2.jpg"
>> > Content-Description: PHP Generated Data
>> > Content-Type: image/jpeg
>> > X-Cache: MISS from proxy.cbr.infinite.net.au
>> > Via: 1.0 proxy.cbr.infinite.net.au:3128 (squid/2.6.STABLE14)
>> > Connection: keep-alive
>> > ----------------------------------------------------------
>> > http://***.***.***.***/.dev/gpts/city-of-monash/photos/view/1
>>
>> > GET /.dev/gpts/city-of-monash/photos/view/1 HTTP/1.1
>> > Host: ***.***.***.***
>> > User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
>> > 1.8.1.6) Gecko/20070725 Firefox/2.0.0.6
>> > Accept: image/png,*/*;q=0.5
>> > Accept-Language: en-us,en;q=0.7,zh;q=0.3
>> > Accept-Encoding: gzip,deflate
>> > Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
>> > Keep-Alive: 300
>> > Connection: keep-alive
>> > Referer: http://***.***.***.***/.dev/gpts/city-of-monash/sites/view/2
>> > Cookie: CAKEPHP=be8ffe7fcc1167c98d43f0d139f09456
>>
>> > HTTP/1.x 200 OK
>> > Date: Tue, 11 Sep 2007 02:26:02 GMT
>> > Server: Apache/2.0.52 (Red Hat)
>> > X-Powered-By: PHP/4.3.9
>> > P3P: CP="NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"
>> > Content-Length: 23408
>> > content-disposition: inline; filename="Monash_logo.jpg"
>> > Content-Description: PHP Generated Data
>> > Content-Type: image/jpeg
>> > X-Cache: MISS from proxy.cbr.infinite.net.au
>> > Via: 1.0 proxy.cbr.infinite.net.au:3128 (squid/2.6.STABLE14)
>> > Connection: keep-alive
>> > ----------------------------------------------------------
>>
>> > Hopefully you can see the times in the headers in all that crap. As
>> > you can see the call to /sites/index & the pictures linked from that
>> > page are loaded instantly according to the headers. But in my browser
>> > i click the /sites/view/2 link before the page fully loads, the
>> > headers say it happens instantly. But if you look at the times for the
>> > images linked from /sites/view/2, the first image doesnt get processed
>> > till exactly 1 minute after the first hit for /sites/view/2, but then
>> > the second image is processed instantly.
>>
>> > If anyone has any ideas what might be causing this it would be greatly
>> > appreciated, its making my application impossible to use as it
>> > randomly appears to crash (but eventually loads)
>>
>> > Phill
>>
>> --
>> View this message in
>> context:http://www.nabble.com/CakePHP-taking-1-minute%2B-to-answer-requests-t...
>> Sent from the CakePHP mailing list archive at Nabble.com.
> 
> 
> > 
> 
> 

-- 
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