Ansible WAS provision stuck

Hi, I’m running playbook on amazon hosts:

ansible-playbook --private-key=serega_test -u ubuntu -i hosts.aws playbook.yml

playbook stuck here:

GATHERING FACTS ***************************************************************
ok: [xxx]
ok: [yyy]
ok: [zzz]

TASK: [dse-install | installing datastax enterprise] **************************

Nothing happens for 30 minutes. It takes 1-2 minute on local env with Vagrant.
I logged to host to check apt history:

Start-Date: 2015-04-24 11:21:05
Commandline: /usr/bin/apt-get -y -o Dpkg::Options::=–force-confdef -o Dpkg::Options::=–force-confold install dse-full=4.6.5-1
Install: python-support:amd64 (1.0.15, automatic), dse-libhadoop:amd64 (4.6.5-1, automatic), jsvc:amd64 (1.0.15-5ubuntu2, automatic), dse-libhive:amd64 (4.6.5-1, automatic), dse-libmahout:amd64 (4.6.5-1, automatic), dse-libtomcat:amd64 (4.6.5-1, automatic), dse-libspark:amd64 (4.6.5-1, automatic), dse-demos:amd64 (4.6.5-1, automatic), libcommons-daemon-java:amd64 (1.0.15-5ubuntu2, automatic), dse-libsqoop:amd64 (4.6.5-1, automatic), dse-full:amd64 (4.6.5-1), dse-pig:amd64 (4.6.5-1, automatic), dse:amd64 (4.6.5-1, automatic), dse-libsolr:amd64 (4.6.5-1, automatic), dse-libpig:amd64 (4.6.5-1, automatic), dse-hive:amd64 (4.6.5-1, automatic), datastax-agent:amd64 (5.1.1, automatic), dse-libhadoop-native:amd64 (4.6.5-1, automatic), dse-liblog4j:amd64 (4.6.5-1, automatic), dse-libcassandra:amd64 (4.6.5-1, automatic)
End-Date: 2015-04-24 11:21:22

Start-Date: 2015-04-24 11:41:49
Commandline: apt-get install htop
Install: htop:amd64 (1.0.2-3)
End-Date: 2015-04-24 11:41:50

I see that ansible started dse installation and finished it.
Then my manual htop installation goes.

Why Ansible stuck?
What could be a reason?

this is probably a network issue and apt-get is stuck, since ansible
is waiting for apt-get, ansible is stuck. I would try running the
equivalent apt-get manually on the servers to debug.