Description of problem:
Meet StickShift::NodeException: Node execution failure (invalid exit code from node) while creating a scalable app using REST API or rhc client,
Error log in development.log:
DEBUG: server results: Failed to start /var/lib/stickshift/adf4836ae23c4cb7a6779118fafb30fe/phpscale2/phpscale2_ctl.sh
Node execution failure (invalid exit code from node).  If the problem persists please contact Red Hat support.
#<StickShift::NodeException: 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):
rhc-cartridge-haproxy-1.4-0.6.4-1.el6_2.noarch
rhc-broker-0.88.3-1.el6_2.noarch
rhc-node-0.88.4-1.el6_2.x86_64
stickshift-abstract-0.6.5-1.el6_2.noarch
rubygem-stickshift-node-0.6.6-1.el6_2.noarch
rubygem-stickshift-common-0.6.4-1.el6_2.noarch
rubygem-stickshift-controller-0.6.5-1.el6_2.noarch
 
 
 
How reproducible:
Always
 
Steps to Reproduce:
1.Create an scalable app using REST API
$ curl -k -H "Accept: application/xml" --user "jizhao+3:redhat"  https://ec2-107-22-54-22.compute-1.amazonaws.com/broker/rest/domains/jizhaotest/applications -X POST -d name=app3 -d cartridge=php-5.3 -d scale=true
 
 
Actual results:
 
The app is created, but not available.
<------------console output-------------->
  <title>Action Controller: Exception caught</title>
 
<h1>
  StickShift::NodeException
    in ApplicationsController#create
</h1>
<pre>Node execution failure (invalid exit code from node).  If the problem persists please contact Red Hat support.</pre>
<--------------------------------------->
 
Expected results:
The app should be created successfully.
 
Additional info: