Examples with AgentUnavailableException com.cloud.exception.AgentUnavailableException used on opensource projects

Example 1 with AgentUnavailableException

use of com.cloud.exception.AgentUnavailableException in project cloudstack by apache.

the class OvmFencer method fenceOff.

@Override
public Boolean fenceOff(VirtualMachine vm, Host host) {
    if (host.getHypervisorType() != HypervisorType.Ovm) {
        s_logger.debug("Don't know how to fence non Ovm hosts " + host.getHypervisorType());
        return null;
    }
    List<HostVO> hosts = _resourceMgr.listAllHostsInCluster(host.getClusterId());
    FenceCommand fence = new FenceCommand(vm, host);
    for (HostVO h : hosts) {
        if (h.getHypervisorType() != HypervisorType.Ovm) {
            continue;
        }
        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;
}

Example 2 with AgentUnavailableException

use of com.cloud.exception.AgentUnavailableException in project cloudstack by apache.

the class VmwareStorageMotionStrategy method migrateVmWithVolumesAcrossCluster.

private Answer migrateVmWithVolumesAcrossCluster(VMInstanceVO vm, VirtualMachineTO to, Host srcHost, Host destHost, Map<VolumeInfo, DataStore> volumeToPool) throws AgentUnavailableException {
    // Initiate migration of a virtual machine with it's volumes.
    try {
        List<Pair<VolumeTO, StorageFilerTO>> volumeToFilerto = new ArrayList<Pair<VolumeTO, StorageFilerTO>>();
        for (Map.Entry<VolumeInfo, DataStore> entry : volumeToPool.entrySet()) {
            VolumeInfo volume = entry.getKey();
            VolumeTO volumeTo = new VolumeTO(volume, storagePoolDao.findById(volume.getPoolId()));
            StorageFilerTO filerTo = new StorageFilerTO((StoragePool) entry.getValue());
            volumeToFilerto.add(new Pair<VolumeTO, StorageFilerTO>(volumeTo, filerTo));
        }
        // Migration across cluster needs to be done in three phases.
        // 1. Send a migrate command to source resource to initiate migration
        //      Run validations against target!!
        // 2. Complete the process. Update the volume details.
        MigrateWithStorageCommand migrateWithStorageCmd = new MigrateWithStorageCommand(to, volumeToFilerto, destHost.getGuid());
        MigrateWithStorageAnswer migrateWithStorageAnswer = (MigrateWithStorageAnswer) agentMgr.send(srcHost.getId(), migrateWithStorageCmd);
        if (migrateWithStorageAnswer == null) {
            s_logger.error("Migration with storage of vm " + vm + " to host " + destHost + " failed.");
            throw new CloudRuntimeException("Error while migrating the vm " + vm + " to host " + destHost);
        } else if (!migrateWithStorageAnswer.getResult()) {
            s_logger.error("Migration with storage of vm " + vm + " failed. Details: " + migrateWithStorageAnswer.getDetails());
            throw new CloudRuntimeException("Error while migrating the vm " + vm + " to host " + destHost + ". " + migrateWithStorageAnswer.getDetails());
        } else {
            // Update the volume details after migration.
            updateVolumesAfterMigration(volumeToPool, migrateWithStorageAnswer.getVolumeTos());
        }
        s_logger.debug("Storage migration of VM " + vm.getInstanceName() + " completed successfully. Migrated to host " + destHost.getName());
        return migrateWithStorageAnswer;
    } catch (OperationTimedoutException e) {
        s_logger.error("Error while migrating vm " + vm + " to host " + destHost, e);
        throw new AgentUnavailableException("Operation timed out on storage motion for " + vm, destHost.getId());
    }
}

Example 3 with AgentUnavailableException

use of com.cloud.exception.AgentUnavailableException in project cloudstack by apache.

the class ResourceManagerImpl method maintain.

@Override
public Host maintain(final PrepareForMaintenanceCmd cmd) {
    final Long hostId = cmd.getId();
    final HostVO host = _hostDao.findById(hostId);
    if (host == null) {
        s_logger.debug("Unable to find host " + hostId);
        throw new InvalidParameterValueException("Unable to find host with ID: " + hostId + ". Please specify a valid host ID.");
    }
    if (_hostDao.countBy(host.getClusterId(), ResourceState.PrepareForMaintenance, ResourceState.ErrorInMaintenance) > 0) {
        throw new InvalidParameterValueException("There are other servers in PrepareForMaintenance OR ErrorInMaintenance STATUS in cluster " + host.getClusterId());
    }
    if (_storageMgr.isLocalStorageActiveOnHost(host.getId())) {
        throw new InvalidParameterValueException("There are active VMs using the host's local storage pool. Please stop all VMs on this host that use local storage.");
    }
    try {
        processResourceEvent(ResourceListener.EVENT_PREPARE_MAINTENANCE_BEFORE, hostId);
        if (maintain(hostId)) {
            processResourceEvent(ResourceListener.EVENT_PREPARE_MAINTENANCE_AFTER, hostId);
            return _hostDao.findById(hostId);
        } else {
            throw new CloudRuntimeException("Unable to prepare for maintenance host " + hostId);
        }
    } catch (final AgentUnavailableException e) {
        throw new CloudRuntimeException("Unable to prepare for maintenance host " + hostId);
    }
}

Example 4 with AgentUnavailableException

use of com.cloud.exception.AgentUnavailableException in project cloudstack by apache.

the class ResourceManagerImpl method propagateResourceEvent.

public Boolean propagateResourceEvent(final long agentId, final ResourceState.Event event) throws AgentUnavailableException {
    final String msPeer = getPeerName(agentId);
    if (msPeer == null) {
        return null;
    }
    if (s_logger.isDebugEnabled()) {
        s_logger.debug("Propagating agent change request event:" + event.toString() + " to agent:" + agentId);
    }
    final Command[] cmds = new Command[1];
    cmds[0] = new PropagateResourceEventCommand(agentId, event);
    final String AnsStr = _clusterMgr.execute(msPeer, agentId, _gson.toJson(cmds), true);
    if (AnsStr == null) {
        throw new AgentUnavailableException(agentId);
    }
    final Answer[] answers = _gson.fromJson(AnsStr, Answer[].class);
    if (s_logger.isDebugEnabled()) {
        s_logger.debug("Result for agent change is " + answers[0].getResult());
    }
    return answers[0].getResult();
}

Example 5 with AgentUnavailableException

use of com.cloud.exception.AgentUnavailableException in project cloudstack by apache.

the class XenServerStorageMotionStrategy method migrateVmWithVolumesAcrossCluster.

private Answer migrateVmWithVolumesAcrossCluster(VMInstanceVO vm, VirtualMachineTO to, Host srcHost, Host destHost, Map<VolumeInfo, DataStore> volumeToPool) throws AgentUnavailableException {
    try {
        List<Pair<VolumeTO, String>> volumeToStorageUuid = new ArrayList<>();
        for (Map.Entry<VolumeInfo, DataStore> entry : volumeToPool.entrySet()) {
            VolumeInfo volumeInfo = entry.getKey();
            StoragePool storagePool = storagePoolDao.findById(volumeInfo.getPoolId());
            VolumeTO volumeTo = new VolumeTO(volumeInfo, storagePool);
            if (storagePool.isManaged()) {
                String iqn = handleManagedVolumePreMigration(volumeInfo, storagePool, destHost);
                volumeToStorageUuid.add(new Pair<>(volumeTo, iqn));
            } else {
                volumeToStorageUuid.add(new Pair<>(volumeTo, ((StoragePool) entry.getValue()).getPath()));
            }
        }
        // Migration across cluster needs to be done in three phases.
        // 1. Send a migrate receive command to the destination host so that it is ready to receive a vm.
        // 2. Send a migrate send command to the source host. This actually migrates the vm to the destination.
        // 3. Complete the process. Update the volume details.
        MigrateWithStorageReceiveCommand receiveCmd = new MigrateWithStorageReceiveCommand(to, volumeToStorageUuid);
        MigrateWithStorageReceiveAnswer receiveAnswer = (MigrateWithStorageReceiveAnswer) agentMgr.send(destHost.getId(), receiveCmd);
        if (receiveAnswer == null) {
            s_logger.error("Migration with storage of vm " + vm + " to host " + destHost + " failed.");
            throw new CloudRuntimeException("Error while migrating the vm " + vm + " to host " + destHost);
        } else if (!receiveAnswer.getResult()) {
            s_logger.error("Migration with storage of vm " + vm + " failed. Details: " + receiveAnswer.getDetails());
            throw new CloudRuntimeException("Error while migrating the vm " + vm + " to host " + destHost);
        }
        MigrateWithStorageSendCommand sendCmd = new MigrateWithStorageSendCommand(to, receiveAnswer.getVolumeToSr(), receiveAnswer.getNicToNetwork(), receiveAnswer.getToken());
        MigrateWithStorageSendAnswer sendAnswer = (MigrateWithStorageSendAnswer) agentMgr.send(srcHost.getId(), sendCmd);
        if (sendAnswer == null) {
            handleManagedVolumesAfterFailedMigration(volumeToPool, destHost);
            s_logger.error("Migration with storage of vm " + vm + " to host " + destHost + " failed.");
            throw new CloudRuntimeException("Error while migrating the vm " + vm + " to host " + destHost);
        } else if (!sendAnswer.getResult()) {
            handleManagedVolumesAfterFailedMigration(volumeToPool, destHost);
            s_logger.error("Migration with storage of vm " + vm + " failed. Details: " + sendAnswer.getDetails());
            throw new CloudRuntimeException("Error while migrating the vm " + vm + " to host " + destHost);
        }
        MigrateWithStorageCompleteCommand command = new MigrateWithStorageCompleteCommand(to);
        MigrateWithStorageCompleteAnswer answer = (MigrateWithStorageCompleteAnswer) agentMgr.send(destHost.getId(), command);
        if (answer == null) {
            s_logger.error("Migration with storage of vm " + vm + " failed.");
            throw new CloudRuntimeException("Error while migrating the vm " + vm + " to host " + destHost);
        } else if (!answer.getResult()) {
            s_logger.error("Migration with storage of vm " + vm + " failed. Details: " + answer.getDetails());
            throw new CloudRuntimeException("Error while migrating the vm " + vm + " to host " + destHost);
        } else {
            // Update the volume details after migration.
            updateVolumePathsAfterMigration(volumeToPool, answer.getVolumeTos(), srcHost);
        }
        return answer;
    } catch (OperationTimedoutException e) {
        s_logger.error("Error while migrating vm " + vm + " to host " + destHost, e);
        throw new AgentUnavailableException("Operation timed out on storage motion for " + vm, destHost.getId());
    }
}