Description of problem:
Get node execution failure as following when embed mongo to app, and this issue does not exist with fedora origin.
# rhc-ctl-app -a jb1 -l szhou -p redhat -e add-mongodb-2.0 -d
Contacting https://broker.example.com
Problem reported from server. Response code was 500.

DEBUG:
fold: write error: Broken pipe
MongoDB shell version: 1.8.2
connecting to: 127.0.250.129/test
Tue Jun 26 06:46:06 Error: couldn't connect to server 127.0.250.129 shell/mongo.js:81
exception: connect failed
Cartridge return code: 255

Exit Code: 1
broker_c: ["namespace", "rhlogin", "ssh", "app_uuid", "debug", "alter", "cartridge", "cart_type", "action", "app_name", "api"]
api_c: ["placeholder"]
API version:    1.1.3

RESULT:
Node execution failure (invalid exit code from node).  If the problem persists please contact Red Hat support.


Version-Release number of selected component (if applicable):
cartridge-mongodb-2.0-0.21.2-1.git.0.68b33dc.el6.noarch
openshift-origin-broker-0.0.1-1.git.22.7fb00a2.el6.noarch

How reproducible:
100%

Steps to Reproduce:
1.set up multiple nodes on RHEL6
2.create domain and create app
3.embed mongodb to exist app
  
Actual results:
Get node execution failure

Expected results:
Embed finish and succefully

Additional info:

Please see attached development.log