Shotgun executes command one by one instead of doing it simultaneously

[Alexander Bozhenko]

Steps to reproduce:
1)Modify settings.yaml to have this config for shotgun:
    slave:
      hosts: []
      objects:
      - type: command
        command: sleep 5 && echo $(date)
        to_file: test.txt
2) create snapshot
3) Check the dump.log
cat /var/log/docker-logs/dump.log | grep -A1 'run: sleep 5 && echo $(date)'
[node-3.domain.tld] run: sleep 5 && echo $(date)
[node-3.domain.tld] out: Fri Apr 17 04:09:29 UTC 2015
--
[node-1.domain.tld] run: sleep 5 && echo $(date)
[node-1.domain.tld] out: Fri Apr 17 04:09:34 UTC 2015
--
[node-5.domain.tld] run: sleep 5 && echo $(date)
[node-5.domain.tld] out: Fri Apr 17 04:09:39 UTC 2015
--
[node-2.domain.tld] run: sleep 5 && echo $(date)
[node-2.domain.tld] out: Fri Apr 17 04:09:44 UTC 2015
--
[node-4.domain.tld] run: sleep 5 && echo $(date)
[node-4.domain.tld] out: Fri Apr 17 04:09:49 UTC 2015

Command are executed one-by-one, for all nodes.

Shotgun should start executing simultaneously on all nodes.
However, we should carefully test it on big(200+) number of nodes.

[Nikolay Markov (nmarkov)]

I would suggest using parallel-ssh project for this purpose. https://github.com/pkittenis/parallel-ssh Moving back to team for now.

[Vladimir Sharshov (vsharshov)]

This is feature. Moving to 8.0.

[Alexander Kislitsky (akislitsky)]

We passed SCF in 8.0. Moving the bug to 9.0.