From 6e11a2c8a77884806b341cf9e611581bea8519a0 Mon Sep 17 00:00:00 2001
From: fengmk2 <m@fengmk2.com>
Date: Tue, 5 Apr 2016 15:43:29 +0800
Subject: [PATCH] fix: use better diff time to check sync status

closes #858
---
 sync/index.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/sync/index.js b/sync/index.js
index a88996869..04474a12a 100644
--- a/sync/index.js
+++ b/sync/index.js
@@ -195,9 +195,11 @@ function* checkSyncStatus() {
   }
   var diff = Date.now() - lastSyncTime;
   var oneDay = 3600000 * 24;
-  if (diff > oneDay) {
-    var err = new Error('Last sync time is expired in ' + diff + ' ms, lastSyncTime: ' + new Date(lastSyncTime));
-    err.name = 'SyncExpriedError';
+  var maxTime = Math.max(oneDay, syncInterval * 2);
+  if (diff > maxTime) {
+    var err = new Error('Last sync time is expired in ' + diff + ' ms, lastSyncTime: ' +
+      new Date(lastSyncTime) + ', maxTime: ' + maxTime + ' ms');
+    err.name = 'SyncExpiredError';
     sendMailToAdmin(err, null, new Date());
   }
 }