diff --git a/vendor/github.com/opencord/voltha-lib-go/v6/pkg/db/kvstore/etcdpool.go b/vendor/github.com/opencord/voltha-lib-go/v6/pkg/db/kvstore/etcdpool.go
new file mode 100644
index 0000000..7ac2511
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v6/pkg/db/kvstore/etcdpool.go
@@ -0,0 +1,239 @@
+/*
+ * Copyright 2021-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package kvstore
+
+import (
+	"container/list"
+	"context"
+	"errors"
+	"github.com/opencord/voltha-lib-go/v6/pkg/log"
+	"go.etcd.io/etcd/clientv3"
+	"sync"
+	"time"
+)
+
+// EtcdClientAllocator represents a generic interface to allocate an Etcd Client
+type EtcdClientAllocator interface {
+	Get(context.Context) (*clientv3.Client, error)
+	Put(*clientv3.Client)
+	Close(ctx context.Context)
+}
+
+// NewRoundRobinEtcdClientAllocator creates a new ETCD Client Allocator using a Round Robin scheme
+func NewRoundRobinEtcdClientAllocator(endpoints []string, timeout time.Duration, capacity, maxUsage int, level log.LogLevel) (EtcdClientAllocator, error) {
+	return &roundRobin{
+		all:       make(map[*clientv3.Client]*rrEntry),
+		full:      make(map[*clientv3.Client]*rrEntry),
+		waitList:  list.New(),
+		max:       maxUsage,
+		capacity:  capacity,
+		timeout:   timeout,
+		endpoints: endpoints,
+		logLevel:  level,
+		closingCh: make(chan struct{}, capacity*maxUsage),
+		stopCh:    make(chan struct{}),
+	}, nil
+}
+
+type rrEntry struct {
+	client *clientv3.Client
+	count  int
+	age    time.Time
+}
+
+type roundRobin struct {
+	//block chan struct{}
+	sync.Mutex
+	available []*rrEntry
+	all       map[*clientv3.Client]*rrEntry
+	full      map[*clientv3.Client]*rrEntry
+	waitList  *list.List
+	max       int
+	capacity  int
+	timeout   time.Duration
+	//ageOut    time.Duration
+	endpoints []string
+	size      int
+	logLevel  log.LogLevel
+	closing   bool
+	closingCh chan struct{}
+	stopCh    chan struct{}
+}
+
+// Get returns an Etcd client. If not is available, it will create one
+// until the maximum allowed capacity.  If maximum capacity has been
+// reached then it will wait until s used one is freed.
+func (r *roundRobin) Get(ctx context.Context) (*clientv3.Client, error) {
+	r.Lock()
+
+	if r.closing {
+		r.Unlock()
+		return nil, errors.New("pool-is-closing")
+	}
+
+	// first determine if we need to block, which would mean the
+	// available queue is empty and we are at capacity
+	if len(r.available) == 0 && r.size >= r.capacity {
+
+		// create a channel on which to wait and
+		// add it to the list
+		ch := make(chan struct{})
+		element := r.waitList.PushBack(ch)
+		r.Unlock()
+
+		// block until it is our turn or context
+		// expires or is canceled
+		select {
+		case <-r.stopCh:
+			logger.Info(ctx, "stop-waiting-pool-is-closing")
+			r.waitList.Remove(element)
+			return nil, errors.New("stop-waiting-pool-is-closing")
+		case <-ch:
+			r.waitList.Remove(element)
+		case <-ctx.Done():
+			r.waitList.Remove(element)
+			return nil, ctx.Err()
+		}
+		r.Lock()
+	}
+
+	defer r.Unlock()
+	if len(r.available) > 0 {
+		// pull off back end as it is operationally quicker
+		last := len(r.available) - 1
+		entry := r.available[last]
+		entry.count++
+		if entry.count >= r.max {
+			r.available = r.available[:last]
+			r.full[entry.client] = entry
+		}
+		entry.age = time.Now()
+		return entry.client, nil
+	}
+
+	logConfig := log.ConstructZapConfig(log.JSON, r.logLevel, log.Fields{})
+	// increase capacity
+	client, err := clientv3.New(clientv3.Config{
+		Endpoints:   r.endpoints,
+		DialTimeout: r.timeout,
+		LogConfig:   &logConfig,
+	})
+	if err != nil {
+		return nil, err
+	}
+	entry := &rrEntry{
+		client: client,
+		count:  1,
+	}
+	r.all[entry.client] = entry
+
+	if r.max > 1 {
+		r.available = append(r.available, entry)
+	} else {
+		r.full[entry.client] = entry
+	}
+	r.size++
+	return client, nil
+}
+
+// Put returns the Etcd Client back to the pool
+func (r *roundRobin) Put(client *clientv3.Client) {
+	r.Lock()
+
+	entry := r.all[client]
+	entry.count--
+
+	if r.closing {
+		// Close client if count is 0
+		if entry.count == 0 {
+			if err := entry.client.Close(); err != nil {
+				logger.Warnw(context.Background(), "error-closing-client", log.Fields{"error": err})
+			}
+			delete(r.all, entry.client)
+		}
+		// Notify Close function that a client was returned to the pool
+		r.closingCh <- struct{}{}
+		r.Unlock()
+		return
+	}
+
+	// This entry is now available for use, so
+	// if in full map add it to available and
+	// remove from full
+	if _, ok := r.full[client]; ok {
+		r.available = append(r.available, entry)
+		delete(r.full, client)
+	}
+
+	front := r.waitList.Front()
+	if front != nil {
+		ch := r.waitList.Remove(front)
+		r.Unlock()
+		// need to unblock if someone is waiting
+		ch.(chan struct{}) <- struct{}{}
+		return
+	}
+	r.Unlock()
+}
+
+func (r *roundRobin) Close(ctx context.Context) {
+	r.Lock()
+	r.closing = true
+
+	// Notify anyone waiting for a client to stop waiting
+	close(r.stopCh)
+
+	// Clean-up unused clients
+	for i := 0; i < len(r.available); i++ {
+		// Count 0 means no one is using that client
+		if r.available[i].count == 0 {
+			if err := r.available[i].client.Close(); err != nil {
+				logger.Warnw(ctx, "failure-closing-client", log.Fields{"client": r.available[i].client, "error": err})
+			}
+			// Remove client for all list
+			delete(r.all, r.available[i].client)
+		}
+	}
+
+	// Figure out how many clients are in use
+	numberInUse := 0
+	for _, rrEntry := range r.all {
+		numberInUse += rrEntry.count
+	}
+	r.Unlock()
+
+	if numberInUse == 0 {
+		logger.Info(ctx, "no-connection-in-use")
+		return
+	}
+
+	logger.Infow(ctx, "waiting-for-clients-return", log.Fields{"count": numberInUse})
+
+	// Wait for notifications when a client is returned to the pool
+	for {
+		select {
+		case <-r.closingCh:
+			numberInUse--
+			if numberInUse == 0 {
+				logger.Info(ctx, "all-connections-closed")
+				return
+			}
+		case <-ctx.Done():
+			logger.Warnw(ctx, "context-done", log.Fields{"error": ctx.Err()})
+			return
+		}
+	}
+}