From 34ed2c56431c63136fdf601e1c94acf4ff338379 Mon Sep 17 00:00:00 2001
From: Zihua Li <i@zihua.li>
Date: Thu, 26 Nov 2015 00:07:07 +0800
Subject: [PATCH] Emits "error" when all sentinels are unreachable. Close #200

---
 Changelog.md                |  2 ++
 lib/redis.js                |  1 +
 test/functional/sentinel.js | 16 ++++++++++++++--
 3 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/Changelog.md b/Changelog.md
index c63de074..95105d82 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -4,6 +4,8 @@ This file is a manually maintained list of changes for each release. Feel free t
 
 ## Master Branch (Unreleased)
 
+* [Sentinel] Emits "error" when all sentinels are unreachable ([#200](https://github.com/luin/ioredis/issues/200)).
+
 ## v1.11.0 - November 19, 2015
 
 * Emits "select" event when the database changed.
diff --git a/lib/redis.js b/lib/redis.js
index e173dcd5..eda5f0c6 100644
--- a/lib/redis.js
+++ b/lib/redis.js
@@ -259,6 +259,7 @@ Redis.prototype.connect = function (callback) {
     this.connector.connect(function (err, stream) {
       if (err) {
         _this.flushQueue(err);
+        _this.silentEmit('error', err);
         reject(err);
         return;
       }
diff --git a/test/functional/sentinel.js b/test/functional/sentinel.js
index 6393ae1d..8bf690ac 100644
--- a/test/functional/sentinel.js
+++ b/test/functional/sentinel.js
@@ -65,10 +65,22 @@ describe('sentinel', function () {
       });
 
       redis.get('foo', function (error) {
+        finish();
         expect(error.message).to.match(/are unreachable/);
-        redis.disconnect();
-        done();
       });
+
+      redis.on('error', function (error) {
+        expect(error.message).to.match(/are unreachable/);
+        finish();
+      });
+
+      var pending = 2;
+      function finish() {
+        if (!--pending) {
+          redis.disconnect();
+          done();
+        }
+      }
     });
 
     it('should close the connection to the sentinel when resolving successfully', function (done) {