Improving how last_sync is updated 2, a=chris

diff --git a/bin/mirror.php b/bin/mirror.php
index ba95a3b66..6fd7e9c67 100644
--- a/bin/mirror.php
+++ b/bin/mirror.php
@@ -233,18 +233,20 @@ class Mirror implements CrawlConstants
             } else if(isset($info[self::STATUS]) &&
                 $info[self::STATUS] == self::NO_DATA_STATE) {
                 $this->last_sync = $time;
+                $this->start_sync = $time;
             }
         } else {
-            $info[self::STATUS] = self::CONTINUE_STATE;
+            $info[self::STATUS] = ($this->last_sync == $this->start_sync) ?
+                self::NO_DATA_STATE : self::CONTINUE_STATE;
+            crawlLog("Current time $time, last notify time ".
+                $this->last_notify."...");
             if($time - $this->last_notify > MIRROR_NOTIFY_FREQUENCY) {
                 $request .= "&a=syncNotify";
-                crawlLog("Current time $time, last notify time ".
-                    $this->last_notify."...");
                 FetchUrl::getPage($request, NULL, true);
                 $this->last_notify = $time;
                 crawlLog("Notifying master that mirror is alive..");
             } else {
-                crawlLog("So not notifying scheduler");
+                crawlLog("So not notifying scheduler..");
             }
         }
         if(count($this->sync_schedule) == 0) {