Examples of org.libvirt.Domain

org.libvirt.Domain

        }


        List<InterfaceDef> ifaces = null;
        List<DiskDef> disks = null;


        Domain dm = null;
        Connect dconn = null;
        Domain destDomain = null;
        Connect conn = null;
        String xmlDesc = null;
        try {
            conn = LibvirtConnection.getConnectionByVmName(cmd.getVmName());
            ifaces = getInterfaces(conn, vmName);
            disks = getDisks(conn, vmName);
            dm = conn.domainLookupByName(vmName);
            /*
                We replace the private IP address with the address of the destination host.
                This is because the VNC listens on the private IP address of the hypervisor,
                but that address is ofcourse different on the target host.


                MigrateCommand.getDestinationIp() returns the private IP address of the target
                hypervisor. So it's safe to use.


                The Domain.migrate method from libvirt supports passing a different XML
                description for the instance to be used on the target host.


                This is supported by libvirt-java from version 0.50.0
            */
            xmlDesc = dm.getXMLDesc(0).replace(_privateIp, cmd.getDestinationIp());


            dconn = new Connect("qemu+tcp://" + cmd.getDestinationIp()
                    + "/system");
            /*
             * Hard code lm flags: VIR_MIGRATE_LIVE(1<<0) and
             * VIR_MIGRATE_PERSIST_DEST(1<<3)
             */
            destDomain = dm.migrate(dconn, (1 << 0) | (1 << 3), xmlDesc, vmName, "tcp:"
                    + cmd.getDestinationIp(), _migrateSpeed);


            for (DiskDef disk : disks) {
                cleanupDisk(disk);
            }
        } catch (LibvirtException e) {
            s_logger.debug("Can't migrate domain: " + e.getMessage());
            result = e.getMessage();
        } finally {
            try {
                if (dm != null) {
                    if (dm.isPersistent() == 1) {
                        dm.undefine();
                    }
                    dm.free();
                }
                if (dconn != null) {
                    dconn.close();
                }
                if (destDomain != null) {
                    destDomain.free();
                }
            } catch (final LibvirtException e) {
                s_logger.trace("Ignoring libvirt error.", e);
            }
        }

View Full Code Here


    protected synchronized String attachOrDetachDisk(Connect conn,
            boolean attach, String vmName, KVMPhysicalDisk attachingDisk,
            int devId, Long bytesReadRate, Long bytesWriteRate, Long iopsReadRate, Long iopsWriteRate) throws LibvirtException, InternalErrorException {
        List<DiskDef> disks = null;
        Domain dm = null;
        DiskDef diskdef = null;
        KVMStoragePool attachingPool = attachingDisk.getPool();
        try {
            if (!attach) {
                dm = conn.domainLookupByName(vmName);
                LibvirtDomainXMLParser parser = new LibvirtDomainXMLParser();
                String xml = dm.getXMLDesc(0);
                parser.parseDomainXML(xml);
                disks = parser.getDisks();


                for (DiskDef disk : disks) {
                    String file = disk.getDiskPath();
                    if (file != null
                            && file.equalsIgnoreCase(attachingDisk.getPath())) {
                        diskdef = disk;
                        break;
                    }
                }
                if (diskdef == null) {
                    throw new InternalErrorException("disk: "
                            + attachingDisk.getPath()
                            + " is not attached before");
                }
            } else {
                diskdef = new DiskDef();
                if (attachingPool.getType() == StoragePoolType.RBD) {
                    diskdef.defNetworkBasedDisk(attachingDisk.getPath(),
                            attachingPool.getSourceHost(), attachingPool.getSourcePort(),
                            attachingPool.getAuthUserName(), attachingPool.getUuid(), devId,
                            DiskDef.diskBus.VIRTIO, diskProtocol.RBD);
                } else if (attachingDisk.getFormat() == PhysicalDiskFormat.QCOW2) {
                    diskdef.defFileBasedDisk(attachingDisk.getPath(), devId,
                            DiskDef.diskBus.VIRTIO, DiskDef.diskFmtType.QCOW2);
                } else if (attachingDisk.getFormat() == PhysicalDiskFormat.RAW) {
                    diskdef.defBlockBasedDisk(attachingDisk.getPath(), devId,
                            DiskDef.diskBus.VIRTIO);
                }
                if ((bytesReadRate != null) && (bytesReadRate > 0))
                    diskdef.setBytesReadRate(bytesReadRate);
                if ((bytesWriteRate != null) && (bytesWriteRate > 0))
                    diskdef.setBytesWriteRate(bytesWriteRate);
                if ((iopsReadRate != null) && (iopsReadRate > 0))
                    diskdef.setIopsReadRate(iopsReadRate);
                if ((iopsWriteRate != null) && (iopsWriteRate > 0))
                    diskdef.setIopsWriteRate(iopsWriteRate);
            }


            String xml = diskdef.toString();
            return attachOrDetachDevice(conn, attach, vmName, xml);
        } finally {
            if (dm != null) {
                dm.free();
            }
        }
    }

View Full Code Here

    }


    protected synchronized String attachOrDetachDevice(Connect conn,
            boolean attach, String vmName, String xml) throws LibvirtException,
            InternalErrorException {
        Domain dm = null;
        try {
            dm = conn.domainLookupByName(vmName);
            if (attach) {
                s_logger.debug("Attaching device: " + xml);
                dm.attachDevice(xml);
            } else {
                s_logger.debug("Detaching device: " + xml);
                dm.detachDevice(xml);
            }
        } catch (LibvirtException e) {
            if (attach) {
                s_logger.warn("Failed to attach device to " + vmName + ": "
                        + e.getMessage());
            } else {
                s_logger.warn("Failed to detach device from " + vmName + ": "
                        + e.getMessage());
            }
            throw e;
        } finally {
            if (dm != null) {
                try {
                    dm.free();
                } catch (LibvirtException l) {
                    s_logger.trace("Ignoring libvirt error.", l);
                }
            }
        }

View Full Code Here

    }


    protected State getRealPowerState(String vm) {
        int i = 0;
        s_logger.trace("Checking on the HALTED State");
        Domain dm = null;
        for (; i < 5; i++) {
            try {
                Connect conn = LibvirtConnection.getConnectionByVmName(vm);
                dm = conn.domainLookupByName(vm);
                DomainInfo.DomainState vps = dm.getInfo().state;
                if (vps != null
                        && vps != DomainInfo.DomainState.VIR_DOMAIN_SHUTOFF
                        && vps != DomainInfo.DomainState.VIR_DOMAIN_NOSTATE) {
                    return convertToState(vps);
                }
            } catch (final LibvirtException e) {
                s_logger.trace("Ignoring libvirt error.", e);
            } finally {
                try {
                    if (dm != null) {
                        dm.free();
                    }
                } catch (final LibvirtException l) {
                    s_logger.trace("Ignoring libvirt error.", l);
                }
            }

View Full Code Here

        } catch (final LibvirtException e) {
            s_logger.warn("Failed to list domains", e);
            return la;
        }


        Domain dm = null;
        for (int i = 0; i < ids.length; i++) {
            try {
                dm = conn.domainLookupByID(ids[i]);
                la.add(dm.getName());
            } catch (final LibvirtException e) {
                s_logger.warn("Unable to get vms", e);
            } finally {
                try {
                    if (dm != null) {
                        dm.free();
                    }
                } catch (final LibvirtException e) {
                    s_logger.trace("Ignoring libvirt error.", e);
                }
            }

View Full Code Here

        } catch (final LibvirtException e) {
            s_logger.warn("Unable to listDomains", e);
            return null;
        }


        Domain dm = null;
        for (int i = 0; i < ids.length; i++) {
            try {
                dm = conn.domainLookupByID(ids[i]);


                DomainInfo.DomainState ps = dm.getInfo().state;


                final State state = convertToState(ps);


                s_logger.trace("VM " + dm.getName() + ": powerstate = " + ps
                        + "; vm state=" + state.toString());
                String vmName = dm.getName();
                vmStates.put(vmName, state);
            } catch (final LibvirtException e) {
                s_logger.warn("Unable to get vms", e);
            } finally {
                try {
                    if (dm != null) {
                        dm.free();
                    }
                } catch (LibvirtException e) {
                    s_logger.trace("Ignoring libvirt error.", e);
                }
            }
        }


        for (int i = 0; i < vms.length; i++) {
            try {


                dm = conn.domainLookupByName(vms[i]);


                DomainInfo.DomainState ps = dm.getInfo().state;
                final State state = convertToState(ps);
                String vmName = dm.getName();
                s_logger.trace("VM " + vmName + ": powerstate = " + ps
                        + "; vm state=" + state.toString());


                vmStates.put(vmName, state);
            } catch (final LibvirtException e) {
                s_logger.warn("Unable to get vms", e);
            } finally {
                try {
                    if (dm != null) {
                        dm.free();
                    }
                } catch (LibvirtException e) {
                    s_logger.trace("Ignoring libvirt error.", e);
                }
            }

View Full Code Here

        } catch (final LibvirtException e) {
            s_logger.warn("Unable to listDomains", e);
            return null;
        }


        Domain dm = null;
        for (int i = 0; i < ids.length; i++) {
            try {
                dm = conn.domainLookupByID(ids[i]);


                DomainInfo.DomainState ps = dm.getInfo().state;


                final PowerState state = convertToPowerState(ps);


                s_logger.trace("VM " + dm.getName() + ": powerstate = " + ps
                        + "; vm state=" + state.toString());
                String vmName = dm.getName();
                vmStates.put(vmName, new HostVmStateReportEntry(state, conn.getHostName(), null));
            } catch (final LibvirtException e) {
                s_logger.warn("Unable to get vms", e);
            } finally {
                try {
                    if (dm != null) {
                        dm.free();
                    }
                } catch (LibvirtException e) {
                    s_logger.trace("Ignoring libvirt error.", e);
                }
            }
        }


        for (int i = 0; i < vms.length; i++) {
            try {


                dm = conn.domainLookupByName(vms[i]);


                DomainInfo.DomainState ps = dm.getInfo().state;
                final PowerState state = convertToPowerState(ps);
                String vmName = dm.getName();
                s_logger.trace("VM " + vmName + ": powerstate = " + ps
                        + "; vm state=" + state.toString());


                vmStates.put(vmName, new HostVmStateReportEntry(state, conn.getHostName(), null));
            } catch (final LibvirtException e) {
                s_logger.warn("Unable to get vms", e);
            } finally {
                try {
                    if (dm != null) {
                        dm.free();
                    }
                } catch (LibvirtException e) {
                    s_logger.trace("Ignoring libvirt error.", e);
                }
            }

View Full Code Here


        return info;
    }


    protected String rebootVM(Connect conn, String vmName) {
        Domain dm = null;
        String msg = null;
        try {
            dm = conn.domainLookupByName(vmName);
            String vmDef = dm.getXMLDesc(0);
            LibvirtDomainXMLParser parser = new LibvirtDomainXMLParser();
            parser.parseDomainXML(vmDef);
            for (InterfaceDef nic :parser.getInterfaces()) {
                if ((nic.getNetType() == guestNetType.BRIDGE) && (nic.getBrName().startsWith("cloudVirBr"))) {
                    try {
                        int vnetId = Integer.parseInt(nic.getBrName().replaceFirst("cloudVirBr", ""));
                        String pifName = getPif(_guestBridgeName);
                        String newBrName = "br" + pifName + "-"+ vnetId;
                        vmDef = vmDef.replaceAll("'" + nic.getBrName() + "'", "'" + newBrName + "'");
                        s_logger.debug("VM bridge name is changed from " + nic.getBrName() + " to " + newBrName);
                    } catch (NumberFormatException e) {
                        continue;
                    }
                }
            }
            s_logger.debug(vmDef);
            msg = stopVM(conn, vmName);
            msg = startVM(conn, vmName, vmDef);
            return null;
        } catch (LibvirtException e) {
            s_logger.warn("Failed to create vm", e);
            msg = e.getMessage();
        } catch (InternalErrorException e) {
            s_logger.warn("Failed to create vm", e);
            msg = e.getMessage();
        } finally {
            try {
                if (dm != null) {
                    dm.free();
                }
            } catch (LibvirtException e) {
                s_logger.trace("Ignoring libvirt error.", e);
            }
        }

View Full Code Here

        return msg;
    }


    protected String stopVM(Connect conn, String vmName) {
        DomainInfo.DomainState state = null;
        Domain dm = null;


        s_logger.debug("Try to stop the vm at first");
        String ret = stopVM(conn, vmName, false);
        if (ret == Script.ERR_TIMEOUT) {
            ret = stopVM(conn, vmName, true);
        } else if (ret != null) {
            /*
             * There is a race condition between libvirt and qemu: libvirt
             * listens on qemu's monitor fd. If qemu is shutdown, while libvirt
             * is reading on the fd, then libvirt will report an error.
             */
            /* Retry 3 times, to make sure we can get the vm's status */
            for (int i = 0; i < 3; i++) {
                try {
                    dm = conn.domainLookupByName(vmName);
                    state = dm.getInfo().state;
                    break;
                } catch (LibvirtException e) {
                    s_logger.debug("Failed to get vm status:" + e.getMessage());
                } finally {
                    try {
                        if (dm != null) {
                            dm.free();
                        }
                    } catch (LibvirtException l) {
                        s_logger.trace("Ignoring libvirt error.", l);
                    }
                }

View Full Code Here


        return null;
    }


    protected String stopVM(Connect conn, String vmName, boolean force) {
        Domain dm = null;
        try {
            dm = conn.domainLookupByName(vmName);
            int persist = dm.isPersistent();
            if (force) {
                if (dm.isActive() == 1) {
                    dm.destroy();
                    if (persist == 1) {
                        dm.undefine();
                    }
                }
            } else {
                if (dm.isActive() == 0) {
                    return null;
                }
                dm.shutdown();
                int retry = _stopTimeout / 2000;
                /* Wait for the domain gets into shutoff state. When it does
                   the dm object will no longer work, so we need to catch it. */
                try {
                    while ( dm.isActive() == 1 && (retry >= 0)) {
                        Thread.sleep(2000);
                        retry--;
                    }
                } catch (LibvirtException e) {
                    String error = e.toString();
                    if (error.contains("Domain not found")) {
                        s_logger.debug("successfully shut down vm " + vmName);
                    } else {
                        s_logger.debug("Error in waiting for vm shutdown:" + error);
                    }
                }
                if (retry < 0) {
                    s_logger.warn("Timed out waiting for domain " + vmName
                            + " to shutdown gracefully");
                    return Script.ERR_TIMEOUT;
                } else {
                    if (persist == 1) {
                        dm.undefine();
                    }
                }
            }
        } catch (LibvirtException e) {
            if (e.getMessage().contains("Domain not found")) {
                s_logger.debug("VM " + vmName + " doesn't exist, no need to stop it");
                return null;
            }
            s_logger.debug("Failed to stop VM :" + vmName + " :", e);
            return e.getMessage();
        } catch (InterruptedException ie) {
            s_logger.debug("Interrupted sleep");
            return ie.getMessage();
        } finally {
            try {
                if (dm != null) {
                    dm.free();
                }
            } catch (LibvirtException e) {
                s_logger.trace("Ignoring libvirt error.", e);
            }
        }

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Related Classes of org.libvirt.Domain

com.cloud.hypervisor.kvm.resource.LibvirtComputingResource

com.cloud.hypervisor.kvm.resource.LibvirtComputingResourceTest

com.cloud.hypervisor.kvm.storage.KVMStorageProcessor

org.jclouds.libvirt.compute.strategy.LibvirtComputeServiceAdapter

org.rhq.plugins.virt.LibVirtConnection

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