Host unreachable sporadically on functional test suite

In http://uberjenkins.sc.couchbase.com/job/centos7-mobile-sync-gateway-functional-tests/123/consoleFull

GET http://s61401cnt72.sc.couchbase.com:8091/pools/nodes 200
All nodes are healthy
Running playbook: libraries/provision/ansible/playbooks/install-sync-gateway-package.yml

PLAY [sync_gateways:sg_accels] *************************************************

TASK [setup] *******************************************************************
fatal: [sg1]: UNREACHABLE! => {"changed": false, "msg": "Failed to connect to the host via ssh.", "unreachable": true}
    to retry, use: --limit @libraries/provision/ansible/playbooks/install-sync-gateway-package.retry

PLAY RECAP *********************************************************************
sg1                        : ok=0    changed=0    unreachable=1    failed=0   

 ERROR at setup of test_attachment_revpos_when_ancestor_unavailable_active_revision_doesnt_share_ancestor 

request = <SubRequest 'setup_1sg_1cbs_suite' for <Function 'test_attachment_revpos_when_ancestor_unavailable'>>

    @pytest.fixture(scope="module")
    def setup_1sg_1cbs_suite(request):
        log_info("Setting up 'setup_1sg_1cbs_suite' ...")

        server_version = request.config.getoption("--server-version")
        sync_gateway_version = request.config.getoption("--sync-gateway-version")

        # Set the CLUSTER_CONFIG environment variable to 1sg_1cbs
        cluster_helper = ClusterKeywords()
        cluster_helper.set_cluster_config("1sg_1cbs")

        cluster_helper.provision_cluster(
            cluster_config=os.environ["CLUSTER_CONFIG"],
            server_version=server_version,
            sync_gateway_version=sync_gateway_version,
>           sync_gateway_config="{}/sync_gateway_default_functional_tests_cc.json".format(SYNC_GATEWAY_CONFIGS)
        )

couchbaselabs / mobile-testkit

Host unreachable sporadically on functional test suite #786