我设置mod_proxy_fcgi做与Apache和php-fpm 。 如果我正确读取FCGI规范，则服务器之间通信的典型stream程是在Web服务器和FastCGI服务器处于活动状态时保持打开状态。 但是我观察到不同的行为。 Apache似乎在每次请求后closures连接。
这里是httpd.conf的相关部分：
LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_fcgi_module modules/mod_proxy_fcgi.so ... ProxyPass / fcgi://127.0.0.1:9000/usr/local/apache2/htdocs/ ttl=120 ProxyErrorOverride on
我将LogLevel设置为debug 。 当我在循环中运行一些请求时（在请求之间很less有时间，所以我真的不希望任何超时），我得到以下日志：
[Mon Oct 07 12:43:49.338770 2013] [authz_core:debug] [pid 29880:tid 140162482755328] mod_authz_core.c(828): [client 127.0.0.1:36279] AH01628: authorization result: granted (no directives) [Mon Oct 07 12:43:49.338793 2013] [proxy_fcgi:debug] [pid 29880:tid 140162482755328] mod_proxy_fcgi.c(120): [client 127.0.0.1:36279] AH01060: set r->filename to proxy:fcgi://127.0.0.1:9000/usr/local/apache2/htdocs/info.php [Mon Oct 07 12:43:49.338802 2013] [proxy:debug] [pid 29880:tid 140162482755328] mod_proxy.c(1083): [client 127.0.0.1:36279] AH01143: Running scheme fcgi handler (attempt 0) [Mon Oct 07 12:43:49.338807 2013] [proxy_http:debug] [pid 29880:tid 140162482755328] mod_proxy_http.c(2174): [client 127.0.0.1:36279] AH01113: HTTP: declining URL fcgi://127.0.0.1:9000/usr/local/apache2/htdocs/info.php [Mon Oct 07 12:43:49.338812 2013] [proxy_fcgi:debug] [pid 29880:tid 140162482755328] mod_proxy_fcgi.c(944): [client 127.0.0.1:36279] AH01076: url: fcgi://127.0.0.1:9000/usr/local/apache2/htdocs/info.php proxyname: (null) proxyport: 0 [Mon Oct 07 12:43:49.338816 2013] [proxy_fcgi:debug] [pid 29880:tid 140162482755328] mod_proxy_fcgi.c(954): [client 127.0.0.1:36279] AH01078: serving URL //127.0.0.1:9000/usr/local/apache2/htdocs/info.php [Mon Oct 07 12:43:49.338821 2013] [proxy:debug] [pid 29880:tid 140162482755328] proxy_util.c(2013): AH00942: FCGI: has acquired connection for (127.0.0.1) [Mon Oct 07 12:43:49.338826 2013] [proxy:debug] [pid 29880:tid 140162482755328] proxy_util.c(2065): [client 127.0.0.1:36279] AH00944: connecting //127.0.0.1:9000/usr/local/apache2/htdocs/info.php to 127.0.0.1:9000 [Mon Oct 07 12:43:49.338887 2013] [proxy:debug] [pid 29880:tid 140162482755328] proxy_util.c(2187): [client 127.0.0.1:36279] AH00947: connected /usr/local/apache2/htdocs/info.php to 127.0.0.1:9000 [Mon Oct 07 12:43:49.339232 2013] [proxy:debug] [pid 29880:tid 140162482755328] proxy_util.c(2028): AH00943: FCGI: has released connection for (127.0.0.1) [Mon Oct 07 12:43:49.343980 2013] [authz_core:debug] [pid 28752:tid 140162457577216] mod_authz_core.c(828): [client 127.0.0.1:36282] AH01628: authorization result: granted (no directives) [Mon Oct 07 12:43:49.344001 2013] [proxy_fcgi:debug] [pid 28752:tid 140162457577216] mod_proxy_fcgi.c(120): [client 127.0.0.1:36282] AH01060: set r->filename to proxy:fcgi://127.0.0.1:9000/usr/local/apache2/htdocs/info.php [Mon Oct 07 12:43:49.344018 2013] [proxy:debug] [pid 28752:tid 140162457577216] mod_proxy.c(1083): [client 127.0.0.1:36282] AH01143: Running scheme fcgi handler (attempt 0) [Mon Oct 07 12:43:49.344024 2013] [proxy_http:debug] [pid 28752:tid 140162457577216] mod_proxy_http.c(2174): [client 127.0.0.1:36282] AH01113: HTTP: declining URL fcgi://127.0.0.1:9000/usr/local/apache2/htdocs/info.php [Mon Oct 07 12:43:49.344028 2013] [proxy_fcgi:debug] [pid 28752:tid 140162457577216] mod_proxy_fcgi.c(944): [client 127.0.0.1:36282] AH01076: url: fcgi://127.0.0.1:9000/usr/local/apache2/htdocs/info.php proxyname: (null) proxyport: 0 [Mon Oct 07 12:43:49.344033 2013] [proxy_fcgi:debug] [pid 28752:tid 140162457577216] mod_proxy_fcgi.c(954): [client 127.0.0.1:36282] AH01078: serving URL //127.0.0.1:9000/usr/local/apache2/htdocs/info.php [Mon Oct 07 12:43:49.344038 2013] [proxy:debug] [pid 28752:tid 140162457577216] proxy_util.c(2013): AH00942: FCGI: has acquired connection for (127.0.0.1) [Mon Oct 07 12:43:49.344043 2013] [proxy:debug] [pid 28752:tid 140162457577216] proxy_util.c(2065): [client 127.0.0.1:36282] AH00944: connecting //127.0.0.1:9000/usr/local/apache2/htdocs/info.php to 127.0.0.1:9000 [Mon Oct 07 12:43:49.344082 2013] [proxy:debug] [pid 28752:tid 140162457577216] proxy_util.c(2187): [client 127.0.0.1:36282] AH00947: connected /usr/local/apache2/htdocs/info.php to 127.0.0.1:9000 [Mon Oct 07 12:43:49.344397 2013] [proxy:debug] [pid 28752:tid 140162457577216] proxy_util.c(2028): AH00943: FCGI: has released connection for (127.0.0.1)
我看到这行FCGI: has released connection for (127.0.0.1)重复一遍又一遍。 我查看了Apache2的实现。 这里是相关的位：
PROXY_DECLARE(int) ap_proxy_release_connection(const char *proxy_function, proxy_conn_rec *conn, server_rec *s) { ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO(00943) "%s: has released connection for (%s)", proxy_function, conn->worker->s->hostname); connection_cleanup(conn); return OK; } ... PROXY_DECLARE(int) ap_proxy_connection_reusable(proxy_conn_rec *conn) { proxy_worker *worker = conn->worker; return ! (conn->close || !worker->s->is_address_reusable || worker->s->disablereuse); } ... static apr_status_t connection_cleanup(void *theconn) { ... /* determine if the connection need to be closed */ if (!ap_proxy_connection_reusable(conn)) { apr_pool_t *p = conn->pool; apr_pool_clear(p); conn = apr_pcalloc(p, sizeof(proxy_conn_rec)); conn->pool = p; conn->worker = worker; apr_pool_create(&(conn->scpool), p); apr_pool_tag(conn->scpool, "proxy_conn_scpool"); } ... }
我把一些额外的日志和重新编译的Apache，我得到conn->close是真实的，而worker->s->is_address_reusable是假的。 任何线索什么是错误configuration？
非常感谢！