When using vdsm client it is not possible to understand whether the connection is still open. During hosted engine configuration vdsm is restarted so it is important to understand when connection to vdsm is not active.
Please provide reproduction steps for this bug.
When using vdsm.client module we need to connect and call any verb (getCapabilities). When client code is still running restart vdsm and attempt to call a verb again. The client should raise Disconnected error.
from vdsm import client cli = client.connect(localhost, 54321, use_tls=True) cli.Host.getCapabilities() ... # systemctl restart vdsmd cli.Host.getCapabilities() Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib/python2.7/site-packages/vdsm/client.py", line 247, in _call responses = self._client.call(req, timeout=timeout) File "/usr/lib/python2.7/site-packages/yajsonrpc/__init__.py", line 362, in call call = self.call_async(*reqs) File "/usr/lib/python2.7/site-packages/yajsonrpc/__init__.py", line 368, in call_async self.call_cb(call.callback, *reqs) File "/usr/lib/python2.7/site-packages/yajsonrpc/__init__.py", line 384, in call_cb self._transport.send(ctx.encode()) File "/usr/lib/python2.7/site-packages/yajsonrpc/stompreactor.py", line 564, in send headers, File "/usr/lib/python2.7/site-packages/yajsonrpc/stompreactor.py", line 414, in send raise stomp.Disconnected() yajsonrpc.stomp.Disconnected Works for me on these components on host: ovirt-vmconsole-host-1.0.4-1.el7ev.noarch mom-0.5.9-1.el7ev.noarch ovirt-imageio-daemon-1.0.0-0.el7ev.noarch libvirt-client-2.0.0-10.el7_3.9.x86_64 ovirt-vmconsole-1.0.4-1.el7ev.noarch vdsm-4.19.17-1.el7ev.x86_64 ovirt-hosted-engine-ha-2.1.1-1.el7ev.noarch ovirt-host-deploy-1.6.5-1.el7ev.noarch ovirt-imageio-common-1.0.0-0.el7ev.noarch qemu-kvm-rhev-2.6.0-28.el7_3.10.x86_64 ovirt-hosted-engine-setup-2.1.2-2.el7ev.noarch sanlock-3.4.0-1.el7.x86_64 ovirt-setup-lib-1.1.1-1.el7ev.noarch ovirt-engine-sdk-python-3.6.9.1-1.el7ev.noarch Linux version 3.10.0-514.21.1.el7.x86_64 (mockbuild.eng.bos.redhat.com) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC) ) #1 SMP Sat Apr 22 02:41:35 EDT 2017 Linux 3.10.0-514.21.1.el7.x86_64 #1 SMP Sat Apr 22 02:41:35 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux Red Hat Enterprise Linux Server release 7.3 (Maipo) Engine: rhev-guest-tools-iso-4.1-5.el7ev.noarch rhevm-dependencies-4.1.1-1.el7ev.noarch rhevm-4.1.3.1-0.1.el7.noarch rhevm-setup-plugins-4.1.2-1.el7ev.noarch rhevm-branding-rhev-4.1.0-1.el7ev.noarch rhevm-doc-4.1.3-1.el7ev.noarch Linux version 3.10.0-514.16.1.el7.x86_64 (mockbuild.eng.bos.redhat.com) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC) ) #1 SMP Fri Mar 10 13:12:32 EST 2017 Linux 3.10.0-514.16.1.el7.x86_64 #1 SMP Fri Mar 10 13:12:32 EST 2017 x86_64 x86_64 x86_64 GNU/Linux Red Hat Enterprise Linux Server release 7.3 (Maipo)