Initialize disk_space_checked

Was reading an uninitialized value.

include/maxscale/monitor.hh

@@ -110,6 +110,13 @@ public:
      */
     virtual json_t* diagnostics_json() const;
 
+    /**
+     * Get current time from the monotonic clock.
+     *
+     * @return Current time
+     */
+    static int64_t get_time_ms();
+
 protected:
     MonitorInstance(MXS_MONITOR* pMonitor);
 
@@ -141,8 +148,6 @@ protected:
      */
     void update_disk_space_status(MXS_MONITORED_SERVER* pMonitored_server);
 
-    static int64_t get_time_ms();
-
     /**
      * @brief Configure the monitor.
      *

server/core/monitor.cc

@@ -367,6 +367,9 @@ bool monitor_add_server(MXS_MONITOR* mon, SERVER* server)
         db->next = NULL;
         db->mon_err_count = 0;
         db->log_version_err = true;
+         // Pretend disk space was just checked.
+        db->disk_space_checked = maxscale::MonitorInstance::get_time_ms();
+
 
         /** Server status is uninitialized */
         db->mon_prev_status = -1;