private DomainRouterVO findELBVmWithCapacity(Network guestNetwork, IPAddressVO ipAddr) {
List<DomainRouterVO> unusedElbVms = _elbVmMapDao.listUnusedElbVms();
if (unusedElbVms.size() > 0) {
List<DomainRouterVO> candidateVms = new ArrayList<DomainRouterVO>();
for (DomainRouterVO candidateVm : unusedElbVms) {
if (candidateVm.getPodIdToDeployIn() == getPodIdForDirectIp(ipAddr))
candidateVms.add(candidateVm);
}
return candidateVms.size() == 0
? null
: candidateVms.get(new Random().nextInt(candidateVms.size()));
}
return null;
}
void garbageCollectUnusedElbVms() {
List<DomainRouterVO> unusedElbVms = _elbVmMapDao.listUnusedElbVms();
if (unusedElbVms != null && unusedElbVms.size() > 0)
s_logger.info("Found " + unusedElbVms.size() + " unused ELB vms");
Set<Long> currentGcCandidates = new HashSet<Long>();
for (DomainRouterVO elbVm : unusedElbVms) {
currentGcCandidates.add(elbVm.getId());
}
_gcCandidateElbVmIds.retainAll(currentGcCandidates);
currentGcCandidates.removeAll(_gcCandidateElbVmIds);
User user = _accountService.getSystemUser();
for (Long elbVmId : _gcCandidateElbVmIds) {
DomainRouterVO elbVm = _routerDao.findById(elbVmId);
boolean gceed = false;
try {
s_logger.info("Attempting to stop ELB VM: " + elbVm);
stop(elbVm, true, user, _systemAcct);
gceed = true;
} catch (ConcurrentOperationException e) {
s_logger.warn("Unable to stop unused ELB vm " + elbVm + " due to ", e);
} catch (ResourceUnavailableException e) {
s_logger.warn("Unable to stop unused ELB vm " + elbVm + " due to ", e);
continue;
}
if (gceed) {
try {
s_logger.info("Attempting to destroy ELB VM: " + elbVm);
_itMgr.expunge(elbVm, user, _systemAcct);
} catch (ResourceUnavailableException e) {
s_logger.warn("Unable to destroy unused ELB vm " + elbVm + " due to ", e);
gceed = false;
}
}
if (!gceed) {
currentGcCandidates.add(elbVm.getId());
}
}
_gcCandidateElbVmIds = currentGcCandidates;
}