panic("minimum buffer length cannot be > capacity of the buffer")
	}
	return &BytePoolCap{
		c:    make(chan []byte, maxSize),
		w:    width,
		wcap: capwidth,
	}
}

// Populate - populates and pre-warms the byte pool, this function is non-blocking.
func (bp *BytePoolCap) Populate() {
	for _, buf := range reedsolomon.AllocAligned(cap(bp.c), bp.wcap) {
		bp.Put(buf[:bp.w])
	}
}

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"testing"
	"time"
)

func TestTierMetrics(t *testing.T) {
	tier := "WARM-1"
	globalTierMetrics.Observe(tier, 200*time.Millisecond)
	expSuccess := 10
	expFailure := 5
	for i := 0; i < expSuccess; i++ {
		globalTierMetrics.logSuccess(tier)
	}
	for i := 0; i < expFailure; i++ {

		Help:      "Distribution of time to last byte for objects downloaded from warm tier",
		Type:      gaugeMetric,
	}

	// {minio_node}_{tier}_{requests_success}
	tierRequestsSuccessMD = MetricDescription{
		Namespace: nodeMetricNamespace,
		Subsystem: tierSubsystem,
		Name:      tierRequestsSuccess,
		Help:      "Number of requests to download object from warm tier that were successful",
		Type:      counterMetric,
	}

#                                                                                   ======
# The mode of Lasta Di's smart-deploy, should be cool in production (e.g. hot, cool, warm)
lasta_di.smart.deploy.mode = cool

# Is development environment here? (used for various purpose, you should set false if unknown)
development.here = false

## Setup site replication
./mc admin replicate add sitea siteb --replicate-ilm-expiry

sleep 10s

## Add warm tier
./mc ilm tier add minio sitea WARM-TIER --endpoint http://localhost:9006 --access-key minio --secret-key minio123 --bucket bucket

## Add ILM rules
./mc ilm add sitea/bucket --transition-days 0 --transition-tier WARM-TIER --transition-days 0 --noncurrent-expire-days 2 --expire-days 3 --prefix "myprefix" --tags "tag1=val1&tag2=val2"

expected_checksum=$(./mc cat internal/dsync/drwmutex.go | md5sum)

user_count=$(./mc admin user list myminio/ | wc -l)
policy_count=$(./mc admin policy list myminio/ | wc -l)

## create a warm tier instance
(minio server /tmp/xltier/{1...4}/disk{0...1} --address :9002 2>&1 >/dev/null) &

export MC_HOST_mytier="http://minioadmin:minioadmin@localhost:9002/"

./mc ready myminio

./mc mb -l myminio/bucket2

		{
			inputConfig:     `<BucketLifecycleConfiguration><Rule><Expiration><Days>30</Days><ExpiredObjectAllVersions>true</ExpiredObjectAllVersions></Expiration><Transition><Days>10</Days><StorageClass>WARM-1</StorageClass></Transition><Filter></Filter><Status>Enabled</Status></Rule></BucketLifecycleConfiguration>`,
			objectName:      "foodir/fooobject",

        resource.setContentLength(size - 1);

        DefaultRepositorySystemSession session = new DefaultRepositorySystemSession(h -> false); // no close handle

        // warm up
        test(listener, session, resource, 0);

        for (int i = 1; i < size; i++) {
            final int bytes = i;

            service.execute(() -> {
                test(listener, session, resource, bytes);

	}
	fi.SetTierFreeVersionID(uuid.New().String())
	// Test if free version is created when SkipTier wasn't set on fi
	j := xlMetaV2Object{}
	j.MetaSys = make(map[string][]byte)
	j.MetaSys[metaTierName] = []byte("WARM-1")
	j.MetaSys[metaTierStatus] = []byte(lifecycle.TransitionComplete)
	j.MetaSys[metaTierObjName] = []byte("obj-1")
	if _, ok := j.InitFreeVersion(fi); !ok {
		t.Fatal("Expected a free version to be created")
	}

| `minio_node_tier_tier_ttlb_seconds_distribution`   | Distribution of time to last byte for objects downloaded from warm tier     |
| `minio_node_tier_requests_success`                 | Number of requests to download object from warm tier that were successful   | 
| `minio_node_tier_requests_failure`                 | Number of requests to download object from warm tier that were failure      | 

## System Metrics