From 576aec60e014cbdec973eecff0ace36825f3d9f3 Mon Sep 17 00:00:00 2001
From: Sheng Yang <sheng.yang@cloud.com>
Date: Thu, 11 Aug 2011 13:21:52 -0700
Subject: [PATCH] Skip the null Host for CheckRouterTask

---
 .../network/router/VirtualNetworkApplianceManagerImpl.java      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java b/server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java
index 6e287acfbf4..81f30780e97 100755
--- a/server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java
+++ b/server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java
@@ -764,7 +764,7 @@ public class VirtualNetworkApplianceManagerImpl implements VirtualNetworkApplian
                     String privateIP = router.getPrivateIpAddress();
                     HostVO host = _hostDao.findById(router.getHostId());
                     /* Only cover hosts managed by this management server */
-                    if (host.getManagementServerId() != ManagementServerNode.getManagementServerId()) {
+                    if (host == null || host.getManagementServerId() != ManagementServerNode.getManagementServerId()) {
                         continue;
                     }
                     if (privateIP != null) {