diff --git a/src/http/modules/ngx_http_log_module.c b/src/http/modules/ngx_http_log_module.c
index 775279c..80bf221 100644
--- a/src/http/modules/ngx_http_log_module.c
+++ b/src/http/modules/ngx_http_log_module.c
@@ -28,6 +28,7 @@
 
 typedef struct {
     ngx_str_t                   name;
+    ngx_array_t                *flushes;
     ngx_array_t                *ops;        /* array of ngx_http_log_op_t */
 } ngx_http_log_fmt_t;
 
@@ -49,7 +50,7 @@
     ngx_http_log_script_t      *script;
     time_t                      disk_full_time;
     time_t                      error_log_time;
-    ngx_array_t                *ops;        /* array of ngx_http_log_op_t */
+    ngx_http_log_fmt_t         *format;
 } ngx_http_log_t;
 
 
@@ -113,7 +114,7 @@
 static char *ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd,
     void *conf);
 static char *ngx_http_log_compile_format(ngx_conf_t *cf,
-    ngx_array_t *ops, ngx_array_t *args, ngx_uint_t s);
+    ngx_array_t *flushes, ngx_array_t *ops, ngx_array_t *args, ngx_uint_t s);
 static char *ngx_http_log_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd,
     void *conf);
 static ngx_int_t ngx_http_log_init(ngx_conf_t *cf);
@@ -242,9 +243,11 @@
             continue;
         }
 
+        ngx_http_script_flush_no_cacheable_variables(r, log[l].format->flushes);
+
         len = 0;
-        op = log[l].ops->elts;
-        for (i = 0; i < log[l].ops->nelts; i++) {
+        op = log[l].format->ops->elts;
+        for (i = 0; i < log[l].format->ops->nelts; i++) {
             if (op[i].len == 0) {
                 len += op[i].getlen(r, op[i].data);
 
@@ -271,7 +274,7 @@
 
                 p = file->pos;
 
-                for (i = 0; i < log[l].ops->nelts; i++) {
+                for (i = 0; i < log[l].format->ops->nelts; i++) {
                     p = op[i].run(r, p, &op[i]);
                 }
 
@@ -290,7 +293,7 @@
 
         p = line;
 
-        for (i = 0; i < log[l].ops->nelts; i++) {
+        for (i = 0; i < log[l].format->ops->nelts; i++) {
             p = op[i].run(r, p, &op[i]);
         }
 
@@ -726,6 +729,8 @@
     fmt->name.len = sizeof("combined") - 1;
     fmt->name.data = (u_char *) "combined";
 
+    fmt->flushes = NULL;
+
     fmt->ops = ngx_array_create(cf->pool, 16, sizeof(ngx_http_log_op_t));
     if (fmt->ops == NULL) {
         return NGX_CONF_ERROR;
@@ -806,7 +811,7 @@
     fmt = lmcf->formats.elts;
 
     /* the default "combined" format */
-    log->ops = fmt[0].ops;
+    log->format = &fmt[0];
     lmcf->combined_used = 1;
 
     return NGX_CONF_OK;
@@ -900,7 +905,7 @@
         if (fmt[i].name.len == name.len
             && ngx_strcasecmp(fmt[i].name.data, name.data) == 0)
         {
-            log->ops = fmt[i].ops;
+            log->format = &fmt[i];
             goto buffer;
         }
     }
@@ -985,22 +990,28 @@
 
     fmt->name = value[1];
 
+    fmt->flushes = ngx_array_create(cf->pool, 4, sizeof(ngx_int_t));
+    if (fmt->flushes == NULL) {
+        return NGX_CONF_ERROR;
+    }
+
     fmt->ops = ngx_array_create(cf->pool, 16, sizeof(ngx_http_log_op_t));
     if (fmt->ops == NULL) {
         return NGX_CONF_ERROR;
     }
 
-    return ngx_http_log_compile_format(cf, fmt->ops, cf->args, 2);
+    return ngx_http_log_compile_format(cf, fmt->flushes, fmt->ops, cf->args, 2);
 }
 
 
 static char *
-ngx_http_log_compile_format(ngx_conf_t *cf, ngx_array_t *ops,
-    ngx_array_t *args, ngx_uint_t s)
+ngx_http_log_compile_format(ngx_conf_t *cf, ngx_array_t *flushes,
+    ngx_array_t *ops, ngx_array_t *args, ngx_uint_t s)
 {
     u_char              *data, *p, ch;
     size_t               i, len;
     ngx_str_t           *value, var;
+    ngx_int_t           *flush;
     ngx_uint_t           bracket;
     ngx_http_log_op_t   *op;
     ngx_http_log_var_t  *v;
@@ -1114,6 +1125,16 @@
                     return NGX_CONF_ERROR;
                 }
 
+                if (flushes) {
+
+                    flush = ngx_array_push(flushes);
+                    if (flush == NULL) {
+                        return NGX_CONF_ERROR;
+                    }
+
+                    *flush = op->data; /* variable index */
+                }
+
             found:
 
                 continue;
@@ -1299,7 +1320,7 @@
         *value = ngx_http_combined_fmt;
         fmt = lmcf->formats.elts;
 
-        if (ngx_http_log_compile_format(cf, fmt->ops, &a, 0)
+        if (ngx_http_log_compile_format(cf, NULL, fmt->ops, &a, 0)
             != NGX_CONF_OK)
         {
             return NGX_ERROR;