i get this error on nginx log periodically:<br><br><br>2009/11/20 16:37:15 [error] 65325#0: *100877 upstream prematurely closed connection while reading response header from upstream, client: 69.63.178.251, server: XX.com, request: "POST /ping HTTP/1.1", upstream: "fastcgi://A.B.C.D8495", host: "X.Y.Z"<br>
<br><br>nginx version: nginx/0.8.27<br>
built by gcc 4.4.1 20090725 (Red Hat 4.4.1-2) (GCC) <br>
configure arguments: --prefix=/opt/local --with-http_stub_status_module --with-http_geoip_module --with-http_realip_module<br>
<br><br>how to fix this problem?<br>thank you!<br>