Created attachment 1074801 [details]
jenkins.log

Description of problem:
Jenkins build doesn't start after commit if builder node is down. If builder node is up - all works fine. If I trigger build from Jenkins - the situation is the same, I need to click build button twice if builder is down

How reproducible:
git push from console. And make sure that builder node in jenkins is down(there is standard timeout 15 minutes you shoul wait)

Steps to Reproduce:
1. git push
2. get log described below in actual results
3. push succeeds, but build won't starts. Also note, that builder node will be raised after this operation

Actual results:
C:\dev\appname>git push
Counting objects: 5, done.
Delta compression using up to 6 threads.
Compressing objects: 100% (3/3), done.
Writing objects: 100% (3/3), 320 bytes | 0 bytes/s, done.
Total 3 (delta 1), reused 0 (delta 0)
remote: Executing Jenkins build.
remote:
remote: You can track your build at https://<jenkins-host>.com/job/<appname>-build
remote:
remote: Waiting for build to schedule......................
remote: **BUILD FAILED/CANCELLED**
remote: Please see the Jenkins log for more details via 'rhc tail'
remote: !!!!!!!!
remote: Deployment Halted!
remote: If the build failed before the deploy step, your previous
remote: build is still running.  Otherwise, your application may be
remote: partially deployed or inaccessible.
remote: Fix the build and try again.
remote: !!!!!!!!
remote: An error occurred executing 'gear postreceive' (exit code: 1)
remote: Error message: CLIENT_ERROR: Failed to execute: 'control post-receive' for /var/lib/openshift/55d66b0d46dcfd658c0000b2/jenkins-client
remote:
remote: For more details about the problem, try running the command again with the '--trace' option.
To ssh://55d66b0d46dcfd658c0000b2@<apphost>/~/git/<appname>.git
   d8661ef..9584520  master -> master


Expected results:
build succeeds


Additional info:
1) Those links describe the same sympthoms:
https://forums.openshift.com/failed-to-execute-control-post-receive
https://bugzilla.redhat.com/show_bug.cgi?id=1048674 (less usefull)
2) I have enough gears and all is ok with quota
3) Actually it fails here:
https://github.com/openshift/jenkins-cloud-plugin/blob/master/src/main/java/hudson/plugins/openshift/OpenShiftCloud.java#L476
When checking builderExists
4) Check jenkins.log in attachment