strange 499 response code ??
nginx-forum at nginx.us
Wed Oct 31 05:17:13 UTC 2012
my server use nginx+php-fpm ,nginx as reverse proxy server,, but our nginx
access log got a lot of 499 response code,,,,the document say that 499
means "client abort the connection ",,,,,i think the the reason cause "
client abort connection" comes from two: the first is client is in weak
network environment, client request can't be delivered successfully, and
client has canceled the request. the second is php-fpm is too busy,,,such as
for a long time nginx can't get the response from upstream server(php-fpm)
,,,and the client canceled the request.
my question is the first reason can be accepted . but the second can't.
since i checked the nginx access log,, when there is 499 response code in
nginx access log file ,,,there is always no "upstream_response_time" field
value in it, seems the php-fpm is not busy and can server it successfully
. here is some sample 499 nginx access log and some explanation:
18.104.22.168 - 31/Oct/2012:13:09:34 +0800 POST
HTTP/1.1 499 0($body_bytes_sent) - Dalvik/1.4.0 (Linux;
U; Android 2.3.4; LT18i Build/4.0.2.A.0.62) 21($content_length)
2.448($request_time) -($upstream_response_time) - - -
22.214.171.124 - 31/Oct/2012:13:09:34 +0800 POST
HTTP/1.1 499 0 - Dalvik/1.2.0 (Linux; U; Android
2.2.1; GT-S5670 Build/FROYO) 44 10.034 -
Posted at Nginx Forum: http://forum.nginx.org/read.php?2,232418,232418#msg-232418
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