mirror of https://github.com/apache/cloudstack.git
105 lines
2.6 KiB
Java
105 lines
2.6 KiB
Java
package com.cloud.ha;
|
|
|
|
import java.util.List;
|
|
|
|
import java.util.Map;
|
|
|
|
import javax.ejb.Local;
|
|
import javax.naming.ConfigurationException;
|
|
|
|
import org.apache.log4j.Logger;
|
|
|
|
import com.cloud.agent.AgentManager;
|
|
import com.cloud.agent.api.FenceAnswer;
|
|
import com.cloud.agent.api.FenceCommand;
|
|
import com.cloud.exception.AgentUnavailableException;
|
|
import com.cloud.exception.OperationTimedoutException;
|
|
import com.cloud.host.HostVO;
|
|
import com.cloud.host.Status;
|
|
import com.cloud.host.dao.HostDao;
|
|
import com.cloud.hypervisor.Hypervisor.HypervisorType;
|
|
import com.cloud.utils.component.Inject;
|
|
import com.cloud.vm.VMInstanceVO;
|
|
|
|
@Local(value=FenceBuilder.class)
|
|
public class KVMFencer implements FenceBuilder {
|
|
private static final Logger s_logger = Logger.getLogger(KVMFencer.class);
|
|
String _name;
|
|
|
|
@Inject HostDao _hostDao;
|
|
@Inject AgentManager _agentMgr;
|
|
@Override
|
|
public boolean configure(String name, Map<String, Object> params)
|
|
throws ConfigurationException {
|
|
// TODO Auto-generated method stub
|
|
_name = name;
|
|
return true;
|
|
}
|
|
|
|
@Override
|
|
public String getName() {
|
|
return _name;
|
|
}
|
|
|
|
@Override
|
|
public boolean start() {
|
|
// TODO Auto-generated method stub
|
|
return true;
|
|
}
|
|
|
|
@Override
|
|
public boolean stop() {
|
|
// TODO Auto-generated method stub
|
|
return true;
|
|
}
|
|
|
|
public KVMFencer() {
|
|
super();
|
|
}
|
|
|
|
@Override
|
|
public Boolean fenceOff(VMInstanceVO vm, HostVO host) {
|
|
if (host.getHypervisorType() != HypervisorType.KVM) {
|
|
s_logger.debug("Don't know how to fence non kvm hosts " + host.getHypervisorType());
|
|
return null;
|
|
}
|
|
|
|
List<HostVO> hosts = _hostDao.listByCluster(host.getClusterId());
|
|
FenceCommand fence = new FenceCommand(vm, host);
|
|
|
|
for (HostVO h : hosts) {
|
|
if (h.getHypervisorType() == HypervisorType.KVM) {
|
|
if( h.getStatus() != Status.Up ) {
|
|
continue;
|
|
}
|
|
if( h.getId() == host.getId() ) {
|
|
continue;
|
|
}
|
|
FenceAnswer answer;
|
|
try {
|
|
answer = (FenceAnswer)_agentMgr.send(h.getId(), fence);
|
|
} catch (AgentUnavailableException e) {
|
|
if (s_logger.isDebugEnabled()) {
|
|
s_logger.debug("Moving on to the next host because " + h.toString() + " is unavailable");
|
|
}
|
|
continue;
|
|
} catch (OperationTimedoutException e) {
|
|
if (s_logger.isDebugEnabled()) {
|
|
s_logger.debug("Moving on to the next host because " + h.toString() + " is unavailable");
|
|
}
|
|
continue;
|
|
}
|
|
if (answer != null && answer.getResult()) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (s_logger.isDebugEnabled()) {
|
|
s_logger.debug("Unable to fence off " + vm.toString() + " on " + host.toString());
|
|
}
|
|
|
|
return false;
|
|
}
|
|
}
|