Package com.cloud.utils.db

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

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    @Override
    public void check() {
        GlobalLock lock = GlobalLock.getInternLock("DatabaseUpgrade");
        try {
            s_logger.info("Grabbing lock to check for database upgrade.");
            if (!lock.lock(20 * 60)) {
                throw new CloudRuntimeException("Unable to acquire lock to check for database integrity.");
            }

            try {
                String dbVersion = _dao.getCurrentVersion();
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                    checkOverlapPublicIpRange(zone.getId(), startIP, endIP);
                }
            }
        }
        GlobalLock portableIpLock = GlobalLock.getInternLock("PortablePublicIpRange");
        portableIpLock.lock(5);
        Transaction txn = Transaction.currentTxn();
        txn.start();

        PortableIpRangeVO portableIpRange = new PortableIpRangeVO(regionId, vlanId, gateway, netmask, startIP, endIP);
        portableIpRange = _portableIpRangeDao.persist(portableIpRange);
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        if (obj.getType() == DataObjectType.TEMPLATE) {
            try{
                String templateIdPoolIdString = "templateId:" + obj.getId() + "poolId:" + this.getId();
                VMTemplateStoragePoolVO templateStoragePoolRef;
                GlobalLock lock = GlobalLock.getInternLock(templateIdPoolIdString);
                if (!lock.lock(5)) {
                    s_logger.debug("Couldn't lock the db on the string " + templateIdPoolIdString);
                    return null;
                }
                try {
                    templateStoragePoolRef = templatePoolDao.findByPoolTemplate(this.getId(),
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        while (retry) {
            GlobalLock deviceMapLock = GlobalLock.getInternLock("LoadBalancerAllocLock");
            Transaction txn = Transaction.currentTxn();
            try {
                if (deviceMapLock.lock(120)) {
                    try {
                        boolean dedicatedLB = offering.getDedicatedLB(); // does network offering supports a dedicated
// load balancer?
                        long lbDeviceId;
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    protected boolean freeLoadBalancerForNetwork(Network guestConfig) {
        Transaction txn = Transaction.currentTxn();
        GlobalLock deviceMapLock = GlobalLock.getInternLock("LoadBalancerAllocLock");

        try {
            if (deviceMapLock.lock(120)) {
                txn.start();
                // since network is shutdown remove the network mapping to the load balancer device
                NetworkExternalLoadBalancerVO networkLBDevice = _networkExternalLBDao.findByNetworkId(guestConfig.getId());
                long lbDeviceId = networkLBDevice.getExternalLBDeviceId();
                _networkExternalLBDao.remove(networkLBDevice.getId());
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                if (lock == null) {
                    s_logger.debug("Couldn't get the global lock");
                    return;
                }

                if (!lock.lock(30)) {
                    s_logger.debug("Couldn't lock the db");
                    return;
                }

                Transaction txn = null;
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        @Override
        public void run() {
            GlobalLock scanLock = GlobalLock.getInternLock("ExternalLoadBalancerUsageManagerImpl");
            try {
                if (scanLock.lock(20)) {
                    try {
                        runExternalLoadBalancerNetworkUsageTask();
                    } finally {
                        scanLock.unlock();
                    }
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                return false;
            }

            GlobalLock scanLock = GlobalLock.getInternLock("direct.network.usage.collect"+host.getDataCenterId());
            try {
                if (scanLock.lock(10)) {
                    try {
                        return collectDirectNetworkUsage(host);
                    } finally {
                        scanLock.unlock();
                    }
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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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    public 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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