@Override
public DomainRouterVO startVirtualRouter(
final DomainRouterVO router,
final User user,
final Account caller,
final Map<Param, Object> params)
throws StorageUnavailableException, InsufficientCapacityException,
ConcurrentOperationException, ResourceUnavailableException {
if (router.getRole() != Role.VIRTUAL_ROUTER || !router.getIsRedundantRouter()) {
return start(router, user, caller, params, null);
}
if (router.getState() == State.Running) {
s_logger.debug("Redundant router " + router.getInstanceName() + " is already running!");
return router;
}
//
// If another thread has already requested a VR start, there is a
// transition period for VR to transit from
// Starting to Running, there exist a race conditioning window here
// We will wait until VR is up or fail
if (router.getState() == State.Starting) {
return waitRouter(router);
}
final DataCenterDeployment plan = new DataCenterDeployment(0, null, null, null, null, null);
DomainRouterVO result = null;
assert router.getIsRedundantRouter();
final List<Long> networkIds = _routerDao.getRouterNetworks(router.getId());
DomainRouterVO routerToBeAvoid = null;
if (networkIds.size() != 0) {
final List<DomainRouterVO> routerList = _routerDao.findByNetwork(networkIds.get(0));
for (final DomainRouterVO rrouter : routerList) {
if (rrouter.getHostId() != null
&& rrouter.getIsRedundantRouter()
&& rrouter.getState() == State.Running) {
if (routerToBeAvoid != null) {
throw new ResourceUnavailableException(
"Try to start router "
+ router.getInstanceName()
+ "("
+ router.getId()
+ ")"
+ ", but there are already two redundant routers with IP "
+ router.getPublicIpAddress()
+ ", they are "
+ rrouter.getInstanceName()
+ "("
+ rrouter.getId()
+ ") and "
+ routerToBeAvoid.getInstanceName()
+ "("
+ routerToBeAvoid.getId()
+ ")",
DataCenter.class,
rrouter.getDataCenterId());
}
routerToBeAvoid = rrouter;
}
}
}
if (routerToBeAvoid == null) {
return start(router, user, caller, params, null);
}
// We would try best to deploy the router to another place
final int retryIndex = 5;
final ExcludeList[] avoids = new ExcludeList[5];
avoids[0] = new ExcludeList();
avoids[0].addPod(routerToBeAvoid.getPodIdToDeployIn());
avoids[1] = new ExcludeList();
avoids[1].addCluster(_hostDao.findById(routerToBeAvoid.getHostId()).getClusterId());
avoids[2] = new ExcludeList();
final List<VolumeVO> volumes =
_volumeDao.findByInstanceAndType(routerToBeAvoid.getId(), Volume.Type.ROOT);
if (volumes != null && volumes.size() != 0) {
avoids[2].addPool(volumes.get(0).getPoolId());
}
avoids[2].addHost(routerToBeAvoid.getHostId());
avoids[3] = new ExcludeList();
avoids[3].addHost(routerToBeAvoid.getHostId());
avoids[4] = new ExcludeList();
for (int i = 0; i < retryIndex; i++) {
if (s_logger.isTraceEnabled()) {
s_logger.trace(
"Try to deploy redundant virtual router:"
+ router.getHostName()
+ ", for "
+ i
+ " time");
}
plan.setAvoids(avoids[i]);
try {
result = start(router, user, caller, params, plan);
} catch (final InsufficientServerCapacityException ex) {
result = null;
}
if (result != null) {
break;
}
}
return result;
}
