From bab08433794c50bd96b2fb8558075a14a5a075b2 Mon Sep 17 00:00:00 2001
From: matt dannenberg <matt.dannenberg@10gen.com>
Date: Fri, 1 May 2015 11:21:34 -0400
Subject: SERVER-13542 Expose electionId on primary in isMaster

---
 src/mongo/db/repl/rs.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mongo/db/repl/rs.cpp b/src/mongo/db/repl/rs.cpp
index 4676860205f..c7f603be8c2 100644
--- a/src/mongo/db/repl/rs.cpp
+++ b/src/mongo/db/repl/rs.cpp
@@ -383,6 +383,9 @@ namespace {
             b.append("tags", a.done());
         }
         b.append("me", myConfig().h.toString());
+        if (isp) {
+            b.append("electionId", getElectionId());
+        }
     }
 
     /** @param cfgString <setname>/<seedhost1>,<seedhost2> */
-- 
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