Upstream prematurely closed connection while reading response header from upstream

Server NGINX
1

nginx0.6.36+php5.2.9+php-fpm
ab -n 2000 -c 2000 http://www.test.com/
i has many error
2009/05/23 16:00:30 24601#0: *81788 upstream prematurely closed
connection while reading response header from upstream, client:
192.168.1.11, server: www.test.com, request: “GET / HTTP/1.0”, upstream:
“fastcgi://127.0.0.1:9000”, host: “www.test.com”

can you help me?
thanks

Posted at Nginx Forum:

2

jdzcn wrote:

nginx0.6.36+php5.2.9+php-fpm
ab -n 2000 -c 2000 http://www.test.com/
i has many error
2009/05/23 16:00:30 24601#0: *81788 upstream prematurely closed connection while reading response header from upstream, client: 192.168.1.11, server: www.test.com, request: “GET / HTTP/1.0”, upstream: “fastcgi://127.0.0.1:9000”, host: “www.test.com”

can you help me?
thanks

One of possible reason for this errors - SEGV in php process.