@Override
public void execute()
throws ResourceUnavailableException, InsufficientCapacityException,
ResourceAllocationException {
try {
UserContext.current().setEventDetails("Vm Id: " + getId());
UserVm result;
result = _userVmService.startVirtualMachine(this);
if (result != null) {
UserVmResponse response =
_responseGenerator.createUserVmResponse("virtualmachine", result).get(0);
response.setResponseName(getCommandName());
this.setResponseObject(response);
} else {
throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to start a vm");
}
} catch (ConcurrentOperationException ex) {
s_logger.warn("Exception: ", ex);
throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, ex.getMessage());
} catch (StorageUnavailableException ex) {
s_logger.warn("Exception: ", ex);
throw new ServerApiException(ApiErrorCode.RESOURCE_UNAVAILABLE_ERROR, ex.getMessage());
} catch (ExecutionException ex) {
s_logger.warn("Exception: ", ex);
throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, ex.getMessage());
}
}
protected Long restart(final HaWorkVO work) {
final long vmId = work.getInstanceId();
final VirtualMachineGuru<VMInstanceVO> mgr = findManager(work.getType());
if (mgr == null) {
s_logger.warn(
"Unable to find a handler for " + work.getType().toString() + ", throwing out " + vmId);
return null;
}
VMInstanceVO vm = mgr.get(vmId);
if (vm == null) {
s_logger.info("Unable to find vm: " + vmId);
return null;
}
s_logger.info("HA on " + vm.toString());
if (vm.getState() != work.getPreviousState() || vm.getUpdated() != work.getUpdateTime()) {
s_logger.info(
"VM "
+ vm.toString()
+ " has been changed. Current State = "
+ vm.getState()
+ " Previous State = "
+ work.getPreviousState()
+ " last updated = "
+ vm.getUpdated()
+ " previous updated = "
+ work.getUpdateTime());
return null;
}
final HostVO host = _hostDao.findById(work.getHostId());
DataCenterVO dcVO = _dcDao.findById(host.getDataCenterId());
HostPodVO podVO = _podDao.findById(host.getPodId());
String hostDesc =
"name: "
+ host.getName()
+ "(id:"
+ host.getId()
+ "), availability zone: "
+ dcVO.getName()
+ ", pod: "
+ podVO.getName();
short alertType = AlertManager.ALERT_TYPE_USERVM;
if (VirtualMachine.Type.DomainRouter.equals(vm.getType())) {
alertType = AlertManager.ALERT_TYPE_DOMAIN_ROUTER;
} else if (VirtualMachine.Type.ConsoleProxy.equals(vm.getType())) {
alertType = AlertManager.ALERT_TYPE_CONSOLE_PROXY;
}
Boolean alive = null;
if (work.getStep() == Step.Investigating) {
if (vm.getHostId() == null || vm.getHostId() != work.getHostId()) {
s_logger.info("VM " + vm.toString() + " is now no longer on host " + work.getHostId());
if (vm.getState() == State.Starting && vm.getUpdated() == work.getUpdateTime()) {
_itMgr.stateTransitTo(vm, Event.AgentReportStopped, null);
}
return null;
}
Enumeration<Investigator> en = _investigators.enumeration();
Investigator investigator = null;
while (en.hasMoreElements()) {
investigator = en.nextElement();
alive = investigator.isVmAlive(vm, host);
if (alive != null) {
s_logger.debug(
investigator.getName() + " found VM " + vm.getName() + "to be alive? " + alive);
break;
}
}
if (alive != null && alive) {
s_logger.debug("VM " + vm.getName() + " is found to be alive by " + investigator.getName());
if (host.getStatus() == Status.Up) {
compareState(vm, new AgentVmInfo(vm.getInstanceName(), mgr, State.Running), false);
return null;
} else {
s_logger.debug("Rescheduling because the host is not up but the vm is alive");
return (System.currentTimeMillis() >> 10) + _investigateRetryInterval;
}
}
boolean fenced = false;
if (alive == null || !alive) {
fenced = true;
s_logger.debug("Fencing off VM that we don't know the state of");
Enumeration<FenceBuilder> enfb = _fenceBuilders.enumeration();
while (enfb.hasMoreElements()) {
final FenceBuilder fb = enfb.nextElement();
Boolean result = fb.fenceOff(vm, host);
if (result != null && !result) {
fenced = false;
}
}
}
if (alive == null && !fenced) {
s_logger.debug("We were unable to fence off the VM " + vm.toString());
_alertMgr.sendAlert(
alertType,
vm.getDataCenterId(),
vm.getPodId(),
"Unable to restart " + vm.getName() + " which was running on host " + hostDesc,
"Insufficient capacity to restart VM, name: "
+ vm.getName()
+ ", id: "
+ vmId
+ " which was running on host "
+ hostDesc);
return (System.currentTimeMillis() >> 10) + _restartRetryInterval;
}
mgr.completeStopCommand(vm);
work.setStep(Step.Scheduled);
_haDao.update(work.getId(), work);
}
// send an alert for VMs that stop unexpectedly
_alertMgr.sendAlert(
alertType,
vm.getDataCenterId(),
vm.getPodId(),
"VM (name: "
+ vm.getName()
+ ", id: "
+ vmId
+ ") stopped unexpectedly on host "
+ hostDesc,
"Virtual Machine "
+ vm.getName()
+ " (id: "
+ vm.getId()
+ ") running on host ["
+ hostDesc
+ "] stopped unexpectedly.");
vm = mgr.get(vm.getId());
if (!_forceHA && !vm.isHaEnabled()) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("VM is not HA enabled so we're done.");
}
return null; // VM doesn't require HA
}
if (!_storageMgr.canVmRestartOnAnotherServer(vm.getId())) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("VM can not restart on another server.");
}
return null;
}
if (work.getTimesTried() > _maxRetries) {
s_logger.warn("Retried to max times so deleting: " + vmId);
return null;
}
try {
VMInstanceVO started = mgr.start(vm.getId(), 0);
if (started != null) {
s_logger.info("VM is now restarted: " + vmId + " on " + started.getHostId());
return null;
}
if (s_logger.isDebugEnabled()) {
s_logger.debug(
"Rescheduling VM " + vm.toString() + " to try again in " + _restartRetryInterval);
}
vm = mgr.get(vm.getId());
work.setUpdateTime(vm.getUpdated());
work.setPreviousState(vm.getState());
return (System.currentTimeMillis() >> 10) + _restartRetryInterval;
} catch (final InsufficientCapacityException e) {
s_logger.warn("Unable to restart " + vm.toString() + " due to " + e.getMessage());
_alertMgr.sendAlert(
alertType,
vm.getDataCenterId(),
vm.getPodId(),
"Unable to restart " + vm.getName() + " which was running on host " + hostDesc,
"Insufficient capacity to restart VM, name: "
+ vm.getName()
+ ", id: "
+ vmId
+ " which was running on host "
+ hostDesc);
return null;
} catch (final StorageUnavailableException e) {
s_logger.warn("Unable to restart " + vm.toString() + " due to " + e.getMessage());
_alertMgr.sendAlert(
alertType,
vm.getDataCenterId(),
vm.getPodId(),
"Unable to restart " + vm.getName() + " which was running on host " + hostDesc,
"The Storage is unavailable for trying to restart VM, name: "
+ vm.getName()
+ ", id: "
+ vmId
+ " which was running on host "
+ hostDesc);
return null;
} catch (ConcurrentOperationException e) {
s_logger.warn("Unable to restart " + vm.toString() + " due to " + e.getMessage());
_alertMgr.sendAlert(
alertType,
vm.getDataCenterId(),
vm.getPodId(),
"Unable to restart " + vm.getName() + " which was running on host " + hostDesc,
"The Storage is unavailable for trying to restart VM, name: "
+ vm.getName()
+ ", id: "
+ vmId
+ " which was running on host "
+ hostDesc);
return null;
} catch (ExecutionException e) {
s_logger.warn("Unable to restart " + vm.toString() + " due to " + e.getMessage());
_alertMgr.sendAlert(
alertType,
vm.getDataCenterId(),
vm.getPodId(),
"Unable to restart " + vm.getName() + " which was running on host " + hostDesc,
"The Storage is unavailable for trying to restart VM, name: "
+ vm.getName()
+ ", id: "
+ vmId
+ " which was running on host "
+ hostDesc);
return null;
}
}