this.asyncNotifyTasks = new ConcurrentHashMap<>();
        this.scheduler = Executors.newScheduledThreadPool(3); // Increased for async notifications
        this.rpcClient = rpcClient;

        // Schedule periodic tasks
        schedulePeriodicTasks();
    }

    /**
     * Schedules periodic tasks for heartbeat and registration monitoring.
     */

    /**
     * Shutdown the directory lease manager
     */
    public void shutdown() {
        scheduler.shutdown();
        try {
            if (!scheduler.awaitTermination(5, TimeUnit.SECONDS)) {
                scheduler.shutdownNow();
            }
        } catch (InterruptedException e) {
            scheduler.shutdownNow();
            Thread.currentThread().interrupt();
        }

            log.error("Failed to create handle state directory: " + stateDirectory, e);
        }

        // Load persisted handles on startup
        loadPersistedHandles();

        // Schedule periodic persistence and cleanup
        scheduler.scheduleAtFixedRate(this::periodicMaintenance, 30, 30, TimeUnit.SECONDS);
    }

    /**
     * Request a new durable handle
     * @param path the file path
     * @param type the handle type

            thresholdAdjustmentTask.cancel(false);
        }
        if (scheduler != null) {
            scheduler.shutdown();
        }
        log.info("[{}] Circuit breaker closed and resources cleaned up", name);
    }

    private void startDynamicThresholdAdjustment() {
        thresholdAdjustmentTask = scheduler.scheduleWithFixedDelay(this::performDynamicThresholdAdjustment, 30, 30, TimeUnit.SECONDS);

    private final AtomicInteger globalAttemptsInCurrentWindow = new AtomicInteger(0);
    private final AtomicLong currentWindowStart = new AtomicLong(System.currentTimeMillis());

    // Cleanup scheduler
    private final ScheduledExecutorService cleanupScheduler;
    private final AtomicBoolean closed = new AtomicBoolean(false);

    // Statistics
    private final AtomicLong totalAttemptsBlocked = new AtomicLong(0);

        this.channelCounter = new AtomicInteger(0);
        this.multiChannelEnabled = false;

        // Schedule periodic health checks
        scheduler.scheduleAtFixedRate(this::performHealthCheck, 10, 10, TimeUnit.SECONDS);

        // Schedule interface discovery
        scheduler.scheduleAtFixedRate(this::discoverInterfaces, 0, 30, TimeUnit.SECONDS);
    }

    /**
     * Initialize multi-channel support

/docker/k8s-artifacts-prod/southamerica-east1/images/kube-scheduler) | [amd64](https://console.cloud.google.com/artifacts/docker/k8s-artifacts-prod/southamerica-east1/images/kube-scheduler-amd64), [arm64](https://console.cloud.google.com/artifacts/docker/k8s-artifacts-prod/southamerica-east1/images/kube-scheduler-arm64), [ppc64le](https://console.cloud.google.com/artifacts/docker/k8s-artifacts-prod/southamerica-east1/images/kube-scheduler-ppc64le), [s390x](https://console.cloud.google.com/artifa...

        verifyPathPattern("AdminReqheader", "/admin/reqheader/");
        verifyPathPattern("AdminRole", "/admin/role/");
        verifyPathPattern("AdminScheduler", "/admin/scheduler/");
        verifyPathPattern("AdminUser", "/admin/user/");
        verifyPathPattern("AdminWebauth", "/admin/webauth/");
        verifyPathPattern("AdminWebconfig", "/admin/webconfig/");
    }

            // Cancel rotation task
            if (rotationTask != null) {
                rotationTask.cancel(false);
                rotationTask = null;
            }

            // Shutdown rotation scheduler
            rotationScheduler.shutdownNow();

            clearAllKeys();
        } finally {
            // Wipe KeyStore password
            if (keyStorePassword != null) {

		<dependency>
			<groupId>org.apache.commons</groupId>
			<artifactId>commons-fileupload2-jakarta-servlet6</artifactId>
			<version>${commons.fileupload.version}</version>
		</dependency>

		<!-- scheduler -->
		<dependency>
			<groupId>org.lastaflute.job</groupId>
			<artifactId>lasta-job</artifactId>
			<version>${lasta.job.version}</version>
		</dependency>

		<!-- mail -->
		<dependency>