# An upstream response is buffered to a temporary file **URL:** \ **Category:** NGINX\ **Created:** [October 21, 2011, 9:36pm UTC](https://www.ruby-forum.com/t/an-upstream-response-is-buffered-to-a-temporary-file/213061 "2011-10-21T21:36:57Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\ **Post date:** [October 21, 2011, 9:36pm UTC](https://www.ruby-forum.com/t/an-upstream-response-is-buffered-to-a-temporary-file/213061/1 "2011-10-21T21:36:57Z")
What settings / parameters can be tweaked to increase the amount of buffers available as to not go to a temporary file? We are seeing many of these: 2011/10/21 14:01:24 [warn] 24547#0: \*2408454 an upstream response is buffered to a temporary file /var/lib/nginx/fastcgi/5/69/0000017695 while reading upstream, client: 1.1.1.1, server: [www.someserver.com](http://www.someserver.com), request: “GET /edit.html?id=6816841 HTTP/1.1”, upstream: “fastcgi://192.168.1.5:9000”, host: “[www.someserver.com](http://www.someserver.com)”, referrer: “[http://www.someserver.com/c.html](http://www.someserver.com/c.html)” I tried messing around with proxy\_buffer settings, but not sure if I’m on the right track. Thanks Posted at Nginx Forum: > **[An upstream response is buffered to a temporary file](https://forum.nginx.org/read.php?2,217034,217034#msg-217034)** > > What settings / parameters can be tweaked to increase the amount of buffers available as to not go to a temporary file? We are seeing many of these: 2011/10/21 14:01:24 \[warn\] 24547#0: \*2408454 an upstream response is buffered to a temporary file... ---
**Author:** ![iberkner](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/c67d28/32.png) [@iberkner](https://www.ruby-forum.com/u/iberkner)\ **Post date:** [October 21, 2011, 9:44pm UTC](https://www.ruby-forum.com/t/an-upstream-response-is-buffered-to-a-temporary-file/213061/2 "2011-10-21T21:44:22Z")
Hello! On Fri, Oct 21, 2011 at 03:36:23PM -0400, iberkner wrote: > “[http://www.someserver.com/c.html](http://www.someserver.com/c.html)” > > I tried messing around with proxy\_buffer settings, but not sure if I’m > on the right track. This is a warning message which is here to let you know that response was buffered to disk. Depending on your use case you may want either to tune fastcgi\_buffers/fastcgi\_buffer\_size, or disable disk buffering with “fastcgi\_max\_temp\_file 0”, or just ignore this warning. Maxim D. ---
**Author:** ![iberkner](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/c67d28/32.png) [@iberkner](https://www.ruby-forum.com/u/iberkner)\ **Post date:** [October 21, 2011, 10:02pm UTC](https://www.ruby-forum.com/t/an-upstream-response-is-buffered-to-a-temporary-file/213061/3 "2011-10-21T22:02:55Z")
Thanks, I increased the fastcgi\_buffers as follows: fastcgi\_buffers 256 4k; and that took care of this problem. Another problem I’m trying to deal with is: netstat -an|awk ‘/tcp/ {print $6}’|sort|uniq -c 12 CLOSING 1176 ESTABLISHED 58 FIN\_WAIT1 218 FIN\_WAIT2 23 LAST\_ACK 43 LISTEN 91 SYN\_RECV 3606 TIME\_WAIT I’m trying to understand why there are so many connections in TIME\_WAIT status. Any ideas on how to research this issue? On Fri, Oct 21, 2011 at 3:44 PM, Maxim D. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > buffered to a temporary file /var/lib/nginx/fastcgi/5/69/0000017695 > > want either to tune fastcgi\_buffers/fastcgi\_buffer\_size, or disable > > disk buffering with “fastcgi\_max\_temp\_file 0”, or just ignore this > > warning. > > Maxim D. > > * * * > > nginx mailing list > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > [mailman.nginx.org archive](http://mailman.nginx.org/mailman/listinfo/nginx) – Ilan B. Chief Technology Officer > **[Online Homeschool Curriculum from Time4Learning](https://www.time4learning.com/)** > > PreK-12 homeschooling is EASY with Time4Learning at your fingertips with award-winning online lessons, and parent-friendly planning and reporting tools. 6300 NE 1st Ave., Suite 203 Ft. Lauderdale, FL 33334 (954) 771-0914 [http://www.twitter.com/time4learning](http://www.twitter.com/time4learning) [http://www.facebook.com/Time4Learning](http://www.facebook.com/Time4Learning) [Time4Learning.com](http://Time4Learning.com) - Online interactive curriculum for home use, PreK-8th Grade. [Time4Writing.com](http://Time4Writing.com) - Online writing tutorials for high, middle, and elementary school students. [Time4Learning.net](http://Time4Learning.net) - A forum to chat with parents online about kids, education, parenting and more. [spellingcity.com](http://spellingcity.com) - Online vocabulary and spelling activities for teachers, parents and students. ---
**Author:** ![iberkner](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/c67d28/32.png) [@iberkner](https://www.ruby-forum.com/u/iberkner)\ **Post date:** [October 21, 2011, 10:10pm UTC](https://www.ruby-forum.com/t/an-upstream-response-is-buffered-to-a-temporary-file/213061/4 "2011-10-21T22:10:59Z")
I read online that making these changes: echo 1 \> /proc/sys/net/ipv4/tcp\_tw\_recycle echo 1 \> /proc/sys/net/ipv4/tcp\_tw\_reuse can potentially have a good impact on performance but can also increase connection drops. Any thoughts? On Fri, Oct 21, 2011 at 4:02 PM, Ilan B. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)wrote: > netstat -an|awk ‘/tcp/ {print $6}’|sort|uniq -c > status. Any ideas on how to research this issue? > > > > We are seeing many of these: > > > > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > > elementary school students. > [Time4Learning.net](http://Time4Learning.net) - A forum to chat with parents online about kids, > education, parenting and more. > [spellingcity.com](http://spellingcity.com) - Online vocabulary and spelling activities for teachers, > parents and students. – Ilan B. Chief Technology Officer > **[Online Homeschool Curriculum from Time4Learning](https://www.time4learning.com/)** > > PreK-12 homeschooling is EASY with Time4Learning at your fingertips with award-winning online lessons, and parent-friendly planning and reporting tools. 6300 NE 1st Ave., Suite 203 Ft. Lauderdale, FL 33334 (954) 771-0914 [http://www.twitter.com/time4learning](http://www.twitter.com/time4learning) [http://www.facebook.com/Time4Learning](http://www.facebook.com/Time4Learning) [Time4Learning.com](http://Time4Learning.com) - Online interactive curriculum for home use, PreK-8th Grade. [Time4Writing.com](http://Time4Writing.com) - Online writing tutorials for high, middle, and elementary school students. [Time4Learning.net](http://Time4Learning.net) - A forum to chat with parents online about kids, education, parenting and more. [spellingcity.com](http://spellingcity.com) - Online vocabulary and spelling activities for teachers, parents and students. ---
**Author:** ![iberkner](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/c67d28/32.png) [@iberkner](https://www.ruby-forum.com/u/iberkner)\ **Post date:** [October 26, 2011, 7:48am UTC](https://www.ruby-forum.com/t/an-upstream-response-is-buffered-to-a-temporary-file/213061/5 "2011-10-26T07:48:19Z")
For time\_wait issue., pls try keepalive enable if it act as proxy. 2011/10/22, Ilan B. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): > netstat -an|awk ‘/tcp/ {print $6}’|sort|uniq -c > status. Any ideas on how to research this issue? > > > > We are seeing many of these: > > > > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > > [Time4Writing.com](http://Time4Writing.com) - Online writing tutorials for high, middle, and elementary > school students. > [Time4Learning.net](http://Time4Learning.net) - A forum to chat with parents online about kids, > education, parenting and more. > [spellingcity.com](http://spellingcity.com) - Online vocabulary and spelling activities for teachers, > parents and students. – ҵƶ豸