switch {
			case job.Replicate != nil:
				ri.RetryAttempts = batchReplJobDefaultRetries
				if job.Replicate.Flags.Retry.Attempts > 0 {
					ri.RetryAttempts = job.Replicate.Flags.Retry.Attempts
				}
			case job.KeyRotate != nil:
				ri.RetryAttempts = batchKeyRotateJobDefaultRetries
				if job.KeyRotate.Flags.Retry.Attempts > 0 {
					ri.RetryAttempts = job.KeyRotate.Flags.Retry.Attempts
				}

			}
		case "lu":
			z.LastUpdate, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "LastUpdate")
				return
			}
		case "ra":
			z.RetryAttempts, err = dc.ReadInt()
			if err != nil {
				err = msgp.WrapError(err, "RetryAttempts")
				return
			}
		case "cmp":
			z.Complete, err = dc.ReadBool()
			if err != nil {
				err = msgp.WrapError(err, "Complete")
				return
			}

	if err != nil {
		return err
	}

	wk, err := workers.New(workerSize)
	if err != nil {
		// invalid worker size.
		return err
	}

	retryAttempts := ri.RetryAttempts
	ctx, cancel := context.WithCancel(ctx)

	results := make(chan ObjectInfo, 100)
	if err := api.Walk(ctx, r.Bucket, r.Prefix, results, WalkOptions{
		Marker: lastObject,
		Filter: selectObj,

func batchObjsForDelete(ctx context.Context, r *BatchJobExpire, ri *batchJobInfo, job BatchJobRequest, api ObjectLayer, wk *workers.Workers, expireCh <-chan []expireObjInfo) {
	vc, _ := globalBucketVersioningSys.Get(r.Bucket)
	retryAttempts := r.Retry.Attempts
	delay := job.Expire.Retry.Delay
	if delay == 0 {
		delay = batchExpireJobDefaultRetryDelay
	}

	var i int
	for toExpire := range expireCh {
		select {
		case <-ctx.Done():