From e772b4e4e1b790199dd000bd096a8917cb8def24 Mon Sep 17 00:00:00 2001
From: Grzegorz Dubicki <grzegorz.dubicki@gmail.com>
Date: Fri, 6 Feb 2015 15:43:58 -0800
Subject: [PATCH] SPARK-5403: Ignore UserKnownHostsFile in SSH calls

See https://issues.apache.org/jira/browse/SPARK-5403

Author: Grzegorz Dubicki <grzegorz.dubicki@gmail.com>

Closes #4196 from grzegorz-dubicki/SPARK-5403 and squashes the following commits:

a7d863f [Grzegorz Dubicki] Resolve start command hanging issue
---
 ec2/spark_ec2.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ec2/spark_ec2.py b/ec2/spark_ec2.py
index 7371558274..3f7242a53d 100755
--- a/ec2/spark_ec2.py
+++ b/ec2/spark_ec2.py
@@ -899,6 +899,7 @@ def stringify_command(parts):
 
 def ssh_args(opts):
     parts = ['-o', 'StrictHostKeyChecking=no']
+    parts += ['-o', 'UserKnownHostsFile=/dev/null']
     if opts.identity_file is not None:
         parts += ['-i', opts.identity_file]
     return parts
-- 
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