ofproto: Warn about excessive rule counts in OpenFlow tables.

[cascardo/ovs.git] / ofproto / ofproto.c

diff --git a/ofproto/ofproto.c b/ofproto/ofproto.c
index 4cb0520..7563cfd 100644 (file)
--- a/ofproto/ofproto.c
+++ b/ofproto/ofproto.c
@@ -1478,6 +1478,14 @@ ofproto_run(struct ofproto *p)
                 continue;
             }
 
+            if (classifier_count(&table->cls) > 100000) {
+                static struct vlog_rate_limit count_rl =
+                    VLOG_RATE_LIMIT_INIT(1, 1);
+                VLOG_WARN_RL(&count_rl, "Table %"PRIuSIZE" has an excessive"
+                             " number of rules: %d", i,
+                             classifier_count(&table->cls));
+            }
+
             ovs_mutex_lock(&ofproto_mutex);
             fat_rwlock_rdlock(&table->cls.rwlock);
             cls_cursor_init(&cursor, &table->cls, NULL);