nginx 0.6.34 *) Change: now the EAGAIN error returned by connect() is not considered as temporary error. *) Change: now the "gzip_vary" directive turned on issues a "Vary: Accept-Encoding" header line for uncompressed responses too. *) Feature: the "expires" directive supports daily time. *) Feature: the "Expect" request header line support. *) Feature: now the "rewrite" directive does a redirect automatically if the "https://" protocol is used. *) Bugfix: the "listen" directive parameters such as "backlog", "rcvbuf", etc. were not set, if a default server was not the first one. *) Bugfix: the "log_not_found" directive did not work for index files tests. *) Bugfix: now if FastCGI server sends a "Location" header line without status line, then nginx uses 302 status code. Thanks to Maxim Dounin. *) Bugfix: the ngx_http_flv_module did not support several values in a query string. *) Bugfix: when a request to a directory was redirected with the slash added, nginx dropped a query string from the original request.

--- a/src/event/ngx_event_connect.c
+++ b/src/event/ngx_event_connect.c
@@ -139,11 +139,22 @@ ngx_event_connect_peer(ngx_peer_connecti
     if (rc == -1) {
         err = ngx_socket_errno;
 
-        /* Winsock returns WSAEWOULDBLOCK (NGX_EAGAIN) */
 
-        if (err != NGX_EINPROGRESS && err != NGX_EAGAIN) {
-
+        if (err != NGX_EINPROGRESS
+#if (NGX_WIN32)
+            /* Winsock returns WSAEWOULDBLOCK (NGX_EAGAIN) */
+            && err != NGX_EAGAIN
+#endif
+            )
+        {
             if (err == NGX_ECONNREFUSED
+#if (NGX_LINUX)
+                /*
+                 * Linux returns EAGAIN instead of ECONNREFUSED
+                 * for unix sockets if listen queue is full
+                 */
+                || err == NGX_EAGAIN
+#endif
                 || err == NGX_ENETDOWN
                 || err == NGX_ENETUNREACH
                 || err == NGX_EHOSTDOWN