nova-novncproxy creates zombie processes

Solution Verified - Updated -

Issue

There are zombie processes initial generated by openstack-nova-novncproxy service.

$ ps aux | grep 'Z' | grep -v grep
12823 ? Z 0:00 [nova-novncproxy] <defunct>
12824 ? Z 0:00 [nova-novncproxy] <defunct>
12825 ? Z 0:00 [nova-novncproxy] <defunct>
12826 ? Z 0:00 [nova-novncproxy] <defunct>
12827 ? Z 0:00 [nova-novncproxy] <defunct>
12828 ? Z 0:00 [nova-novncproxy] <defunct>
12829 ? Z 0:00 [nova-novncproxy] <defunct>

Environment

Red Hat Enterprise Linux OpenStack Platform 5
Package:
python-websockifypython-websockify-0.5.1-1.el6ost.noarch

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