add a simple retry logic to das queries

[davidlange6]

as advised by das developer

[cmsbuild]

A new Pull Request was created by @davidlange6 (David Lange) for CMSSW_7_6_X.

add a simple retry logic to das queries

It involves the following packages:

Configuration/Applications
Configuration/PyReleaseValidation

@cmsbuild, @srimanob, @boudoul, @franzoni, @davidlange6 can you please review it and eventually sign? Thanks.
@ghellwig, @Martin-Grunewald this is something you requested to watch as well.
You can sign-off by replying to this message having '+1' in the first line of your reply.
You can reject by replying to this message having '-1' in the first line of your reply.
If you are a L2 or a release manager you can ask for tests by saying 'please test' in the first line of a comment.
@Degano you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

[davidlange6]

@cmsbuild, please test

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

-1
@davidlange6 This pull request cannot be automatically merged, could you please rebase it?
you can see the log for git cms-merge-topic here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-10606/7020/git-merge-result

[davidlange6]

@cmsbuild, please test

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

-1

Tested at: 61f4c3b
I found errors in the following unit tests:

---> test TestConfigDP had ERRORS

you can see the results of the tests here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-10606/193932/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-10606/193932/summary.html