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// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package org.apache.cloudstack.affinity;
import java.util.List;
import java.util.Map;
import javax.ejb.Local;
import javax.inject.Inject;
import javax.naming.ConfigurationException;
import org.apache.log4j.Logger;
import org.apache.cloudstack.affinity.dao.AffinityGroupDao;
import org.apache.cloudstack.affinity.dao.AffinityGroupVMMapDao;
import org.apache.cloudstack.engine.cloud.entity.api.db.VMReservationVO;
import org.apache.cloudstack.engine.cloud.entity.api.db.dao.VMReservationDao;
import org.apache.cloudstack.framework.config.dao.ConfigurationDao;
import com.cloud.configuration.Config;
import com.cloud.deploy.DeployDestination;
import com.cloud.deploy.DeploymentPlan;
import com.cloud.deploy.DeploymentPlanner.ExcludeList;
import com.cloud.exception.AffinityConflictException;
import com.cloud.utils.DateUtil;
import com.cloud.utils.NumbersUtil;
import com.cloud.vm.VMInstanceVO;
import com.cloud.vm.VirtualMachine;
import com.cloud.vm.VirtualMachineProfile;
import com.cloud.vm.dao.UserVmDao;
import com.cloud.vm.dao.VMInstanceDao;
@Local(value = AffinityGroupProcessor.class)
public class HostAntiAffinityProcessor extends AffinityProcessorBase implements AffinityGroupProcessor {
private static final Logger s_logger = Logger.getLogger(HostAntiAffinityProcessor.class);
@Inject
protected UserVmDao _vmDao;
@Inject
protected VMInstanceDao _vmInstanceDao;
@Inject
protected AffinityGroupDao _affinityGroupDao;
@Inject
protected AffinityGroupVMMapDao _affinityGroupVMMapDao;
private int _vmCapacityReleaseInterval;
@Inject
protected ConfigurationDao _configDao;
@Inject
protected VMReservationDao _reservationDao;
@Override
public void process(VirtualMachineProfile vmProfile, DeploymentPlan plan, ExcludeList avoid) throws AffinityConflictException {
VirtualMachine vm = vmProfile.getVirtualMachine();
List<AffinityGroupVMMapVO> vmGroupMappings = _affinityGroupVMMapDao.findByVmIdType(vm.getId(), getType());
for (AffinityGroupVMMapVO vmGroupMapping : vmGroupMappings) {
if (vmGroupMapping != null) {
AffinityGroupVO group = _affinityGroupDao.findById(vmGroupMapping.getAffinityGroupId());
if (s_logger.isDebugEnabled()) {
s_logger.debug("Processing affinity group " + group.getName() + " for VM Id: " + vm.getId());
}
List<Long> groupVMIds = _affinityGroupVMMapDao.listVmIdsByAffinityGroup(group.getId());
groupVMIds.remove(vm.getId());
for (Long groupVMId : groupVMIds) {
VMInstanceVO groupVM = _vmInstanceDao.findById(groupVMId);
if (groupVM != null && !groupVM.isRemoved()) {
if (groupVM.getHostId() != null) {
avoid.addHost(groupVM.getHostId());
if (s_logger.isDebugEnabled()) {
s_logger.debug("Added host " + groupVM.getHostId() + " to avoid set, since VM " + groupVM.getId() + " is present on the host");
}
} else if (VirtualMachine.State.Stopped.equals(groupVM.getState()) && groupVM.getLastHostId() != null) {
long secondsSinceLastUpdate = (DateUtil.currentGMTTime().getTime() - groupVM.getUpdateTime().getTime()) / 1000;
if (secondsSinceLastUpdate < _vmCapacityReleaseInterval) {
avoid.addHost(groupVM.getLastHostId());
if (s_logger.isDebugEnabled()) {
s_logger.debug("Added host " + groupVM.getLastHostId() + " to avoid set, since VM " + groupVM.getId() +
" is present on the host, in Stopped state but has reserved capacity");
}
}
}
}
}
}
}
}
@Override
public boolean configure(final String name, final Map<String, Object> params) throws ConfigurationException {
super.configure(name, params);
_vmCapacityReleaseInterval = NumbersUtil.parseInt(_configDao.getValue(Config.CapacitySkipcountingHours.key()), 3600);
return true;
}
@Override
public boolean check(VirtualMachineProfile vmProfile, DeployDestination plannedDestination) throws AffinityConflictException {
if (plannedDestination.getHost() == null) {
return true;
}
long plannedHostId = plannedDestination.getHost().getId();
VirtualMachine vm = vmProfile.getVirtualMachine();
List<AffinityGroupVMMapVO> vmGroupMappings = _affinityGroupVMMapDao.findByVmIdType(vm.getId(), getType());
for (AffinityGroupVMMapVO vmGroupMapping : vmGroupMappings) {
// if more than 1 VM's are present in the group then check for
// conflict due to parallel deployment
List<Long> groupVMIds = _affinityGroupVMMapDao.listVmIdsByAffinityGroup(vmGroupMapping.getAffinityGroupId());
groupVMIds.remove(vm.getId());
for (Long groupVMId : groupVMIds) {
VMReservationVO vmReservation = _reservationDao.findByVmId(groupVMId);
if (vmReservation != null && vmReservation.getHostId() != null && vmReservation.getHostId().equals(plannedHostId)) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Planned destination for VM " + vm.getId() + " conflicts with an existing VM " + vmReservation.getVmId() +
" reserved on the same host " + plannedHostId);
}
return false;
}
}
}
return true;
}
}