--- libapache-mod-jk-1.2.26~/native/common/jk_lb_worker.c	2008-03-10 20:25:34.000000000 +0800
+++ libapache-mod-jk-1.2.26~/native/common/jk_lb_worker.c	2008-03-10 20:25:34.000000000 +0800
@@ -40,8 +40,8 @@ 
  * The load balancing code in this
  */
 
-#define JK_WORKER_USABLE(w)   ((w)->state != JK_LB_STATE_ERROR && (w)->state != JK_LB_STATE_PROBE && (w)->state != JK_LB_STATE_BUSY && (w)->activation != JK_LB_ACTIVATION_STOPPED && (w)->activation != JK_LB_ACTIVATION_DISABLED)
-#define JK_WORKER_USABLE_STICKY(w)   ((w)->state != JK_LB_STATE_ERROR && (w)->state != JK_LB_STATE_PROBE && (w)->activation != JK_LB_ACTIVATION_STOPPED)
+#define JK_WORKER_USABLE(w)   ((w)->state != JK_LB_STATE_ERROR && (w)->state != JK_LB_STATE_PROBE && (w)->state != JK_LB_STATE_BUSY && (w)->activation != JK_LB_ACTIVATION_STOPPED && (w)->activation != JK_LB_ACTIVATION_DISABLED && ((w)->busylimit == 0 || (w)->busy < (w)->busylimit))
+#define JK_WORKER_USABLE_STICKY(w)   ((w)->state != JK_LB_STATE_ERROR && (w)->state != JK_LB_STATE_PROBE && (w)->activation != JK_LB_ACTIVATION_STOPPED && ((w)->busylimit == 0 || (w)->busy < (w)->busylimit))
 
 static const char *lb_locking_type[] = {
     JK_LB_LOCK_TEXT_OPTIMISTIC,
@@ -1319,6 +1319,8 @@ 
                         JK_SHM_STR_SIZ);
                 p->lb_workers[i].s->lb_factor =
                     jk_get_lb_factor(props, worker_names[i]);
+                p->lb_workers[i].s->busylimit =
+				    jk_get_lb_worker_busylimit(props, worker_names[i]);
                 if (p->lb_workers[i].s->lb_factor < 1) {
                     p->lb_workers[i].s->lb_factor = 1;
                 }
--- libapache-mod-jk-1.2.26~/native/common/jk_shm.h	2007-06-25 02:33:33.000000000 +0800
+++ libapache-mod-jk-1.2.26~/native/common/jk_shm.h	2008-03-10 20:25:34.000000000 +0800
@@ -85,6 +85,7 @@ 
     volatile int state;
     /* Current lb factor */
     volatile int lb_factor;
+    volatile int busylimit;
     /* Current lb reciprocal factor */
     volatile jk_uint64_t lb_mult;
     /* Current lb value  */
--- libapache-mod-jk-1.2.26~/native/common/jk_status.c	2007-12-17 16:12:54.000000000 +0800
+++ libapache-mod-jk-1.2.26~/native/common/jk_status.c	2008-03-10 20:26:43.000000000 +0800
@@ -210,7 +210,8 @@ 
                                            "<th>&nbsp;</th><th>Name</th><th>Type</th>" \
                                            "<th>Host</th><th>Addr</th>" \
                                            "<th>Act</th><th>State</th>" \
-                                           "<th>D</th><th>F</th><th>M</th>" \
+                                           "<th>D</th><th>F</th>" \
+                                           "<th>BusyLimit</th><th>M</th>" \
                                            "<th>V</th><th>Acc</th>" \
                                            "<th>Err</th><th>CE</th><th>RE</th>" \
                                            "<th>Wr</th><th>Rd</th><th>Busy</th><th>Max</th>" \
@@ -225,6 +226,7 @@ 
                                            "<td>%s</td>" \
                                            "<td>%d</td>" \
                                            "<td>%d</td>" \
+                                           "<td>%d</td>" \
                                            "<td>%" JK_UINT64_T_FMT "</td>" \
                                            "<td>%" JK_UINT64_T_FMT "</td>" \
                                            "<td>%" JK_UINT64_T_FMT "</td>" \
@@ -1587,6 +1589,7 @@ 
                           jk_lb_get_state(wr, l),
                           wr->s->distance,
                           wr->s->lb_factor,
+                          wr->s->busylimit,
                           wr->s->lb_mult,
                           wr->s->lb_value,
                           wr->s->elected,
@@ -1619,6 +1622,7 @@ 
                 jk_print_xml_att_string(s, 8, "domain", wr->s->domain);
                 jk_print_xml_att_int(s, 8, "distance", wr->s->distance);
                 jk_print_xml_att_string(s, 8, "state", jk_lb_get_state(wr, l));
+                jk_print_xml_att_uint32(s, 8, "busylimit", wr->s->busylimit);
                 jk_print_xml_att_uint64(s, 8, "lbmult", wr->s->lb_mult);
                 jk_print_xml_att_uint64(s, 8, "lbvalue", wr->s->lb_value);
                 jk_print_xml_att_uint64(s, 8, "elected", wr->s->elected);
@@ -1650,6 +1654,7 @@ 
                 jk_printf(s, " domain=\"%s\"", wr->s->domain ? wr->s->domain : "");
                 jk_printf(s, " distance=%d", wr->s->distance);
                 jk_printf(s, " state=%s", jk_lb_get_state(wr, l));
+                jk_printf(s, " busylimit=%" JK_UINT32_T_FMT, wr->s->busylimit);
                 jk_printf(s, " lbmult=%" JK_UINT64_T_FMT, wr->s->lb_mult);
                 jk_printf(s, " lbvalue=%" JK_UINT64_T_FMT, wr->s->lb_value);
                 jk_printf(s, " elected=%" JK_UINT64_T_FMT, wr->s->elected);
@@ -1679,6 +1684,7 @@ 
                 jk_print_prop_att_string(s, w, wr->s->name, "domain", wr->s->domain);
                 jk_print_prop_att_int(s, w, wr->s->name, "distance", wr->s->distance);
                 jk_print_prop_att_string(s, w, wr->s->name, "state", jk_lb_get_state(wr, l));
+                jk_print_prop_att_uint32(s, w, wr->s->name, "busylimit", wr->s->busylimit);
                 jk_print_prop_att_uint64(s, w, wr->s->name, "lbmult", wr->s->lb_mult);
                 jk_print_prop_att_uint64(s, w, wr->s->name, "lbvalue", wr->s->lb_value);
                 jk_print_prop_att_uint64(s, w, wr->s->name, "elected", wr->s->elected);
--- libapache-mod-jk-1.2.26~/native/common/jk_util.c	2008-03-10 20:25:34.000000000 +0800
+++ libapache-mod-jk-1.2.26~/native/common/jk_util.c	2008-03-10 20:25:34.000000000 +0800
@@ -119,6 +119,9 @@ 
 
 #define SESSION_COOKIE              ("session_cookie")
 
+#define MAXBUSY                     ("busylimit")
+
+
 #define MAKE_WORKER_PARAM(P)     \
         strcpy(buf, "worker.");  \
         strcat(buf, wname);      \
@@ -204,6 +207,7 @@ 
     XML_DOCTYPE_OF_WORKER,
     PROP_PREFIX_OF_WORKER,
     USER_CASE_OF_WORKER,
+    MAXBUSY,
     NULL
 };
 
@@ -297,6 +301,7 @@ 
     STATUS_FAIL_OF_WORKER,
     LIST_PROPERTY_NAME,
     SESSION_COOKIE,
+    MAXBUSY,
     MAINTAIN_PROPERTY_NAME
 };
 
@@ -1437,6 +1442,19 @@ 
     return v;
 }
 
+int jk_get_lb_worker_busylimit(jk_map_t *m, const char *wname)
+{
+    char buf[1024];
+
+    if (!m || !wname) {
+        return -1;
+    }
+
+    MAKE_WORKER_PARAM(MAXBUSY);
+
+    return jk_map_get_int(m, buf, 0);
+}
+
 int jk_get_worker_mount_list(jk_map_t *m,
                              const char *wname,
                              char ***list, unsigned int *num_of_maps)
--- libapache-mod-jk-1.2.26~/native/common/jk_util.h	2008-03-10 20:25:34.000000000 +0800
+++ libapache-mod-jk-1.2.26~/native/common/jk_util.h	2008-03-10 20:25:34.000000000 +0800
@@ -127,6 +127,9 @@ 
 const char *jk_get_lb_session_cookie(jk_map_t *m,
 				     const char *wname);
 
+int jk_get_lb_worker_busylimit(jk_map_t *m, const char *wname);
+
+
 int jk_get_worker_mount_list(jk_map_t *m,
                              const char *wname,
                              char ***list, unsigned int *num_of_maps);