From f728154eac6676c9dc438096cb7630544dd2055d Mon Sep 17 00:00:00 2001
From: Greg Meyer <greg.meyer@datadoghq.com>
Date: Fri, 12 Aug 2016 13:00:40 -0400
Subject: [PATCH] adds comment about the wait

---
 ci/mongo.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ci/mongo.rb b/ci/mongo.rb
index 38a6ae133d..e8d516fca8 100644
--- a/ci/mongo.rb
+++ b/ci/mongo.rb
@@ -67,6 +67,8 @@ def mongo_rootdir
            --eval "printjson(rs.initiate()); printjson(rs.conf());" '#{hostname}:37017' \
            >> $VOLATILE_DIR/mongo1.log)
 
+      # mongo 2 takes longer to spin up than mongo 3. Without this wait,
+      # it will all break because it takes too long to come up.
       sleep_for 30
       sh %(#{mongo_rootdir}/bin/mongo\
            --eval "cfg = rs.conf(); cfg.members[0].host = '#{hostname}:37017';\