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Make this work better and stop bad VMs

This commit is contained in:
Joshua Boniface 2018-06-02 15:26:37 -04:00
parent beef743dd6
commit 87954559a1
2 changed files with 17 additions and 8 deletions
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11
NodeInstance.py
View File

@ -95,7 +95,11 @@ class NodeInstance(threading.Thread):
print("CPUs: %s" % self.cpucount)
while True:
# Make sure that the VMs we think we're running actually are
# Toggle state management of all VMs
for domain, instance in self.s_domain.items():
instance.manage_vm_state()
# Remove non-running VMs from our list
for domain in self.domain_list:
try:
buuid = uuid.UUID(domain).bytes
@ -106,11 +110,6 @@ class NodeInstance(threading.Thread):
except:
self.domain_list.remove(domain)
# Toggle state management of all VMs to start any that are failed
for domain, instance in self.s_domain.items():
if instance.gethypervisor() == self.name and ( instance.getstate() == 'start' or instance.getstate() == 'migrate' ):
instance.manage_vm_state()
# Set our information in zookeeper
self.memfree = conn.getFreeMemory()
self.cpuload = os.getloadavg()[0]

14
VMInstance.py
View File

@ -114,24 +114,34 @@ class VMInstance:
except:
running = libvirt.VIR_DOMAIN_NOSTATE
# VM should be stopped
if running == libvirt.VIR_DOMAIN_RUNNING and self.state == "stop" and self.hypervisor == self.thishypervisor.name:
self.stop_vm()
if running == libvirt.VIR_DOMAIN_RUNNING and self.state == "shutdown" and self.hypervisor == self.thishypervisor.name:
# VM should not be running on this hypervisor
elif running == libvirt.VIR_DOMAIN_RUNNING and self.state == "start" and self.hypervisor != self.thishypervisor.name:
self.stop_vm()
# VM should be shut down
elif running == libvirt.VIR_DOMAIN_RUNNING and self.state == "shutdown" and self.hypervisor == self.thishypervisor.name:
self.shutdown_vm()
# VM should be migrated to this hypervisor
elif running != libvirt.VIR_DOMAIN_RUNNING and self.state == "migrate" and self.hypervisor == self.thishypervisor.name:
self.receive_migrate()
# VM should be migrated away from this hypervisor
elif running == libvirt.VIR_DOMAIN_RUNNING and self.state == "migrate" and self.hypervisor != self.thishypervisor.name:
self.migrate_vm()
# VM should be started
elif running != libvirt.VIR_DOMAIN_RUNNING and self.state == "start" and self.hypervisor == self.thishypervisor.name:
# Grab the domain information from Zookeeper
domxml, domxmlstat = self.zk.get(self.zkey + '/xml')
domxml = str(domxml.decode('ascii'))
self.dom = self.start_vm(conn, domxml)
# VM is already running and should be
elif running == libvirt.VIR_DOMAIN_RUNNING and self.state == "start" and self.hypervisor == self.thishypervisor.name:
if not self.domuuid in self.thishypervisor.domain_list:
self.thishypervisor.domain_list.append(self.domuuid)