Examples of com.cloud.utils.db.GlobalLock.lock()

com.cloud.utils.db.GlobalLock.lock()

    public class NetworkGarbageCollector extends ManagedContextRunnable {
        @Override
        protected void runInContext() {
            GlobalLock gcLock = GlobalLock.getInternLock("Network.GC.Lock");
            try {
                if (gcLock.lock(3)) {
                    try {
                        reallyRun();
                    } finally {
                        gcLock.unlock();
                    }

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            ManagedObjectReference morParent = hostMo.getParentMor();
            if (morParent != null && morParent.getType().equals("ClusterComputeResource")) {
                // to be conservative, lock cluster
                GlobalLock lock = GlobalLock.getInternLock("ClusterLock." + morParent.getValue());
                try {
                    if (lock.lock(DEFAULT_LOCK_TIMEOUT_SECONDS)) {
                        try {
                            List<ManagedObjectReference> hosts = hostMo.getContext().getVimClient().getDynamicProperty(morParent, "host");
                            if (hosts != null) {
                                for (ManagedObjectReference otherHost : hosts) {
                                    if (!otherHost.getValue().equals(hostMo.getMor().getValue())) {

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    protected void cancelWorkItems(long nodeId) {
        GlobalLock scanLock = GlobalLock.getInternLock("vmmgr.cancel.workitem");


        try {
            if (scanLock.lock(3)) {
                try {
                    List<ItWorkVO> works = _workDao.listWorkInProgressFor(nodeId);
                    for (ItWorkVO work : works) {
                        s_logger.info("Handling unfinished work item: " + work);
                        try {

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        // add lock to make template sync for a data store only be done once
        String lockString = "templatesync.storeId:" + storeId;
        GlobalLock syncLock = GlobalLock.getInternLock(lockString);
        try {
            if (syncLock.lock(3)) {
                try {
                    Long zoneId = store.getScope().getScopeId();


                    Map<String, TemplateProp> templateInfos = listTemplate(store);
                    if (templateInfos == null) {

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    private void prepareSecondaryStorageStore(String storageUrl) {
        String mountPoint = getMountPoint(storageUrl);


        GlobalLock lock = GlobalLock.getInternLock("prepare.systemvm");
        try {
            if (lock.lock(3600)) {
                try {
                    File patchFolder = new File(mountPoint + "/systemvm");
                    if (!patchFolder.exists()) {
                        if (!patchFolder.mkdirs()) {
                            String msg = "Unable to create systemvm folder on secondary storage. location: " + patchFolder.toString();

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        try {
            return Transaction.execute(new TransactionCallback<Boolean>() {
                @Override
                public Boolean doInTransaction(TransactionStatus status) {
            portableIpLock.lock(5);
            IPAddressVO ip = _ipAddressDao.findById(addrId);


            // unassign portable IP
            PortableIpVO portableIp = _portableIpDao.findByIpAddress(ip.getAddress().addr());
            _portableIpDao.unassignIpAddress(portableIp.getId());

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        GlobalLock portableIpLock = GlobalLock.getInternLock("PortablePublicIpRange");
        IPAddressVO ipaddr;


        try {
            portableIpLock.lock(5);


            ipaddr = Transaction.execute(new TransactionCallbackWithException<IPAddressVO, InsufficientAddressCapacityException>() {
                @Override
                public IPAddressVO doInTransaction(TransactionStatus status) throws InsufficientAddressCapacityException {
                    PortableIpVO allocatedPortableIp;

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    }


    private void prepareDefaultCertificate() {
        GlobalLock lock = GlobalLock.getInternLock("consoleproxy.cert.setup");
        try {
            if (lock.lock(ACQUIRE_GLOBAL_LOCK_TIMEOUT_FOR_SYNC)) {
                KeystoreVO ksVo = _ksDao.findByName(CERTIFICATE_NAME);
                if (ksVo == null) {
                    _ksDao.save(CERTIFICATE_NAME, ConsoleProxyVO.certContent, ConsoleProxyVO.keyContent, "realhostip.com");
                    KeystoreVO caRoot = new KeystoreVO();
                    caRoot.setCertificate(ConsoleProxyVO.rootCa);

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            @Override
            protected void runInContext() {
                GlobalLock scanLock = GlobalLock.getInternLock("AsyncJobManagerHeartbeat");
                try {
                    if (scanLock.lock(ACQUIRE_GLOBAL_LOCK_TIMEOUT_FOR_COOPERATION)) {
                        try {
                            reallyRun();
                        } finally {
                            scanLock.unlock();
                        }

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        return new ManagedContextRunnable() {
            @Override
            protected void runInContext() {
                GlobalLock scanLock = GlobalLock.getInternLock("AsyncJobManagerGC");
                try {
                    if (scanLock.lock(ACQUIRE_GLOBAL_LOCK_TIMEOUT_FOR_COOPERATION)) {
                        try {
                            reallyRun();
                        } finally {
                            scanLock.unlock();
                        }

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