globalBucketTargetSys.set(buckets[i], meta) // set remote replication targets
	}
}

func (sys *BucketMetadataSys) refreshBucketsMetadataLoop(ctx context.Context) {
	const bucketMetadataRefresh = 15 * time.Minute

	sleeper := newDynamicSleeper(2, 150*time.Millisecond, false)

	t := time.NewTimer(bucketMetadataRefresh)
	defer t.Stop()
	for {
		select {
		case <-ctx.Done():
			return
		case <-t.C:

        testBoundaryValue(1L);
        testBoundaryValue(-1L);

        // Test one second boundaries
        testBoundaryValue(1000L);
        testBoundaryValue(-1000L);

        // Test one minute boundaries
        testBoundaryValue(60000L);
        testBoundaryValue(-60000L);

        // Test one hour boundaries
        testBoundaryValue(3600000L);
        testBoundaryValue(-3600000L);

          "interval": "1m",
          "intervalFactor": 2,
          "legendFormat": "{{server}}",
          "refId": "A"
        }
      ],
      "title": "Last Minute Queued",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "fieldConfig": {
        "defaults": {

    private volatile boolean skipMaskingForDebugLevel = false;

    // Rate limiting
    private final Map<String, AtomicLong> rateLimitCounters = new ConcurrentHashMap<>();
    private volatile long rateLimitWindow = 60000; // 1 minute
    private volatile int maxEventsPerWindow = 10000; // Increased for tests

    /**
     * Security event types
     */
    public enum EventType {

          "interval": "1m",
          "intervalFactor": 2,
          "legendFormat": "{{endpoint}},{{server}}",
          "refId": "A"
        }
      ],
      "title": "Last Minute Failed Data",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "fieldConfig": {

        }
    }

    private void performHealthCheck() {
        for (ChannelInfo channel : channels.values()) {
            if (channel.getIdleTime() > 60000) { // 1 minute idle
                // Send keep-alive
                try {
                    sendKeepAlive(channel);
                } catch (Exception e) {

All replication failures are picked up by the scanner which runs at a one minute frequency, each time scanning up to a sixteenth of the namespace. Object versions marked `PENDING` or `FAILED` are re-queued for replication.

        failover.handleFailure(channel, error);
    }
    
    private void performHealthCheck() {
        for (ChannelInfo channel : channels.values()) {
            if (channel.getIdleTime() > 60000) {  // 1 minute idle
                // Send keep-alive
                try {
                    sendKeepAlive(channel);
                } catch (Exception e) {

	dnsTTL := ctx.Duration("dns-cache-ttl")
	// Check if we have configured a custom DNS cache TTL.
	if dnsTTL <= 0 {
		if orchestrated {
			dnsTTL = 30 * time.Second
		} else {
			dnsTTL = 10 * time.Minute
		}
	}

	// Call to refresh will refresh names in cache.
	go func() {
		// Baremetal setups set DNS refresh window up to dnsTTL duration.
		t := time.NewTicker(dnsTTL)
		defer t.Stop()
		for {

	saverQuitCh := make(chan struct{})
	go func() {
		saveTicker := time.NewTicker(10 * time.Second)
		defer saveTicker.Stop()
		quit := false
		after := time.Minute
		for !quit {
			select {
			case <-saveTicker.C:
			case <-ctx.Done():
				quit = true
			case <-saverQuitCh:
				quit = true
			}

			if quit {
				// save immediately if we are quitting