More gracefully handle TimeoutException in test
More gracefully handle TimeoutException in test

Sometimes although the test_killed_worker_recover test passes, the
cleanup of a forked child takes too long and a TimeoutException
occurs. This patch better handles the TimeoutException and
ensures the child process is killed.

Fixes bug #1128574

Change-Id: I39ea2fbb6c9cb95ad10b68bfa216686467951a93

yosshy/nova,Stavitsky/nova,raildo/nova,JioCloud/nova_test_latest,CCI-MOC/nova,Yuriy-Leonov/nova,rahulunair/nova,akash1808/nova,LoHChina/nova,rajalokan/nova,zzicewind/nova,openstack/nova,bigswitch/nova,phenoxim/nova,berrange/nova,klmitch/nova,dstroppa/openstack-smartos-nova-grizzly,maelnor/nova,leilihh/nova,adelina-t/nova,leilihh/novaha,MountainWei/nova,raildo/nova,BeyondTheClouds/nova,vmturbo/nova,isyippee/nova,dstroppa/openstack-smartos-nova-grizzly,klmitch/nova,noironetworks/nova,sridevikoushik31/openstack,silenceli/nova,SUSE-Cloud/nova,DirectXMan12/nova-hacking,viggates/nova,petrutlucian94/nova_dev,luogangyi/bcec-nova,maheshp/novatest,hanlind/nova,double12gzh/nova,nikesh-mahalka/nova,varunarya10/nova_test_latest,Triv90/Nova,scripnichenko/nova,jeffrey4l/nova,cernops/nova,Francis-Liu/animated-broccoli,nikesh-mahalka/nova,petrutlucian94/nova_dev,ted-gould/nova,NeCTAR-RC/nova,sebrandon1/nova,blueboxgroup/nova,watonyweng/nova,joker946/nova,gspilio/nova,orbitfp7/nova,belmiromoreira/nova,CEG-FYP-OpenStack/scheduler,shail2810/nova,plumgrid/plumgrid-nova,luogangyi/bcec-nova,rickerc/nova_audit,ntt-sic/nova,Juniper/nova,petrutlucian94/nova,hanlind/nova,yatinkumbhare/openstack-nova,TieWei/nova,CiscoSystems/nova,yrobla/nova,qwefi/nova,openstack/nova,bclau/nova,vladikr/nova_drafts,DirectXMan12/nova-hacking,klmitch/nova,shootstar/novatest,saleemjaveds/https-github.com-openstack-nova,hanlind/nova,TwinkleChawla/nova,spring-week-topos/nova-week,ewindisch/nova,mikalstill/nova,shahar-stratoscale/nova,tangfeixiong/nova,yosshy/nova,klmitch/nova,yrobla/nova,virtualopensystems/nova,rrader/nova-docker-plugin,tanglei528/nova,Triv90/Nova,Tehsmash/nova,rickerc/nova_audit,viggates/nova,mmnelemane/nova,dawnpower/nova,silenceli/nova,alaski/nova,leilihh/novaha,Yuriy-Leonov/nova,kimjaejoong/nova,jianghuaw/nova,cernops/nova,cloudbau/nova,vladikr/nova_drafts,ruslanloman/nova,sridevikoushik31/nova,eonpatapon/nova,mahak/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,zhimin711/nova,phenoxim/nova,affo/nova,OpenAcademy-OpenStack/nova-scheduler,mmnelemane/nova,apporc/nova,sridevikoushik31/openstack,rajalokan/nova,LoHChina/nova,tealover/nova,imsplitbit/nova,fnordahl/nova,rahulunair/nova,maheshp/novatest,yrobla/nova,mahak/nova,openstack/nova,rajalokan/nova,eonpatapon/nova,CloudServer/nova,devoid/nova,orbitfp7/nova,tanglei528/nova,edulramirez/nova,Stavitsky/nova,devendermishrajio/nova_test_latest,jeffrey4l/nova,blueboxgroup/nova,TieWei/nova,plumgrid/plumgrid-nova,dstroppa/openstack-smartos-nova-grizzly,tudorvio/nova,Juniper/nova,maheshp/novatest,Tehsmash/nova,CCI-MOC/nova,tealover/nova,Yusuke1987/openstack_template,whitepages/nova,angdraug/nova,gspilio/nova,berrange/nova,ted-gould/nova,thomasem/nova,sacharya/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,petrutlucian94/nova,CEG-FYP-OpenStack/scheduler,zzicewind/nova,JianyuWang/nova,alvarolopez/nova,dims/nova,imsplitbit/nova,cyx1231st/nova,felixma/nova,varunarya10/nova_test_latest,citrix-openstack-build/nova,bigswitch/nova,spring-week-topos/nova-week,rrader/nova-docker-plugin,tangfeixiong/nova,shail2810/nova,gooddata/openstack-nova,vmturbo/nova,takeshineshiro/nova,sacharya/nova,sridevikoushik31/openstack,JioCloud/nova,shahar-stratoscale/nova,gooddata/openstack-nova,OpenAcademy-OpenStack/nova-scheduler,eharney/nova,akash1808/nova_test_latest,watonyweng/nova,angdraug/nova,bclau/nova,projectcalico/calico-nova,ewindisch/nova,Triv90/Nova,double12gzh/nova,dims/nova,j-carpentier/nova,Metaswitch/calico-nova,sebrandon1/nova,mandeepdhami/nova,JioCloud/nova,zhimin711/nova,jianghuaw/nova,sridevikoushik31/nova,devendermishrajio/nova,sridevikoushik31/nova,iuliat/nova,dawnpower/nova,eayunstack/nova,fnordahl/nova,zaina/nova,akash1808/nova,vmturbo/nova,j-carpentier/nova,bgxavier/nova,sebrandon1/nova,BeyondTheClouds/nova,SUSE-Cloud/nova,cloudbase/nova,eayunstack/nova,devendermishrajio/nova,affo/nova,CiscoSystems/nova,kimjaejoong/nova,Juniper/nova,cernops/nova,barnsnake351/nova,eharney/nova,BeyondTheClouds/nova,alaski/nova,adelina-t/nova,Yusuke1987/openstack_template,mahak/nova,whitepages/nova,felixma/nova,alexandrucoman/vbox-nova-driver,alvarolopez/nova,JioCloud/nova_test_latest,gooddata/openstack-nova,joker946/nova,CloudServer/nova,mikalstill/nova,projectcalico/calico-nova,saleemjaveds/https-github.com-openstack-nova,ntt-sic/nova,belmiromoreira/nova,redhat-openstack/nova,scripnichenko/nova,zaina/nova,akash1808/nova_test_latest,mgagne/nova,cloudbase/nova,tianweizhang/nova,qwefi/nova,rajalokan/nova,NeCTAR-RC/nova,Francis-Liu/animated-broccoli,iuliat/nova,badock/nova,gooddata/openstack-nova,alexandrucoman/vbox-nova-driver,shootstar/novatest,barnsnake351/nova,DirectXMan12/nova-hacking,rahulunair/nova,cloudbau/nova,citrix-openstack-build/nova,mgagne/nova,edulramirez/nova,isyippee/nova,ruslanloman/nova,mikalstill/nova,cloudbase/nova-virtualbox,JianyuWang/nova,virtualopensystems/nova,tianweizhang/nova,cloudbase/nova,Metaswitch/calico-nova,Juniper/nova,cloudbase/nova-virtualbox,badock/nova,sridevikoushik31/nova,leilihh/nova,apporc/nova,cyx1231st/nova,jianghuaw/nova,tudorvio/nova,maelnor/nova,jianghuaw/nova,redhat-openstack/nova,takeshineshiro/nova,bgxavier/nova,TwinkleChawla/nova,MountainWei/nova,mandeepdhami/nova,devendermishrajio/nova_test_latest,devoid/nova,thomasem/nova,yatinkumbhare/openstack-nova,vmturbo/nova,noironetworks/nova,gspilio/nova