diff --git a/db/kvstore/client.go b/db/kvstore/client.go
index a7cbf2b..a8e6311 100644
--- a/db/kvstore/client.go
+++ b/db/kvstore/client.go
@@ -75,10 +75,10 @@
 
 // Client represents the set of APIs  a KV Client must implement
 type Client interface {
-	List(key string, timeout int) (map[string]*KVPair, error)
-	Get(key string, timeout int) (*KVPair, error)
-	Put(key string, value interface{}, timeout int) error
-	Delete(key string, timeout int) error
+	List(key string, timeout int, lock ...bool) (map[string]*KVPair, error)
+	Get(key string, timeout int, lock ...bool) (*KVPair, error)
+	Put(key string, value interface{}, timeout int, lock ...bool) error
+	Delete(key string, timeout int, lock ...bool) error
 	Reserve(key string, value interface{}, ttl int64) (interface{}, error)
 	ReleaseReservation(key string) error
 	ReleaseAllReservations() error
diff --git a/db/kvstore/consulclient.go b/db/kvstore/consulclient.go
index e4f6baf..a5c71ac 100644
--- a/db/kvstore/consulclient.go
+++ b/db/kvstore/consulclient.go
@@ -65,7 +65,7 @@
 
 // List returns an array of key-value pairs with key as a prefix.  Timeout defines how long the function will
 // wait for a response
-func (c *ConsulClient) List(key string, timeout int) (map[string]*KVPair, error) {
+func (c *ConsulClient) List(key string, timeout int, lock ...bool) (map[string]*KVPair, error) {
 	duration := GetDuration(timeout)
 
 	kv := c.consul.KV()
@@ -86,7 +86,7 @@
 
 // Get returns a key-value pair for a given key. Timeout defines how long the function will
 // wait for a response
-func (c *ConsulClient) Get(key string, timeout int) (*KVPair, error) {
+func (c *ConsulClient) Get(key string, timeout int, lock ...bool) (*KVPair, error) {
 
 	duration := GetDuration(timeout)
 
@@ -109,7 +109,7 @@
 // Put writes a key-value pair to the KV store.  Value can only be a string or []byte since the consul API
 // accepts only a []byte as a value for a put operation. Timeout defines how long the function will
 // wait for a response
-func (c *ConsulClient) Put(key string, value interface{}, timeout int) error {
+func (c *ConsulClient) Put(key string, value interface{}, timeout int, lock ...bool) error {
 
 	// Validate that we can create a byte array from the value as consul API expects a byte array
 	var val []byte
@@ -135,7 +135,7 @@
 
 // Delete removes a key from the KV store. Timeout defines how long the function will
 // wait for a response
-func (c *ConsulClient) Delete(key string, timeout int) error {
+func (c *ConsulClient) Delete(key string, timeout int, lock ...bool) error {
 	kv := c.consul.KV()
 	var writeOptions consulapi.WriteOptions
 	c.writeLock.Lock()
diff --git a/db/kvstore/etcdclient.go b/db/kvstore/etcdclient.go
index 490a477..9ecddca 100644
--- a/db/kvstore/etcdclient.go
+++ b/db/kvstore/etcdclient.go
@@ -16,14 +16,12 @@
 package kvstore
 
 import (
-	//log "../common"
 	"context"
 	"errors"
 	"fmt"
-	//v3Client "github.com/coreos/etcd/clientv3"
-	//v3rpcTypes "github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes"
-	log "github.com/opencord/voltha-go/common/log"
+	"github.com/opencord/voltha-go/common/log"
 	v3Client "go.etcd.io/etcd/clientv3"
+	v3Concurrency "go.etcd.io/etcd/clientv3/concurrency"
 	v3rpcTypes "go.etcd.io/etcd/etcdserver/api/v3rpc/rpctypes"
 	"sync"
 )
@@ -39,7 +37,6 @@
 
 // NewEtcdClient returns a new client for the Etcd KV store
 func NewEtcdClient(addr string, timeout int) (*EtcdClient, error) {
-
 	duration := GetDuration(timeout)
 
 	c, err := v3Client.New(v3Client.Config{
@@ -52,15 +49,26 @@
 	}
 	wc := make(map[string][]map[chan *Event]v3Client.Watcher)
 	reservations := make(map[string]*v3Client.LeaseID)
+
 	return &EtcdClient{ectdAPI: c, watchedChannels: wc, keyReservations: reservations}, nil
 }
 
 // List returns an array of key-value pairs with key as a prefix.  Timeout defines how long the function will
 // wait for a response
-func (c *EtcdClient) List(key string, timeout int) (map[string]*KVPair, error) {
+func (c *EtcdClient) List(key string, timeout int, lock ...bool) (map[string]*KVPair, error) {
 	duration := GetDuration(timeout)
 
 	ctx, cancel := context.WithTimeout(context.Background(), duration)
+
+	// DO NOT lock by default; otherwise lock per instructed value
+	if len(lock) > 0 && lock[0] {
+		session, _ := v3Concurrency.NewSession(c.ectdAPI, v3Concurrency.WithContext(ctx))
+		mu := v3Concurrency.NewMutex(session, "/lock" + key)
+		mu.Lock(context.Background())
+		defer mu.Unlock(context.Background())
+		defer session.Close()
+	}
+
 	resp, err := c.ectdAPI.Get(ctx, key, v3Client.WithPrefix())
 	cancel()
 	if err != nil {
@@ -76,10 +84,20 @@
 
 // Get returns a key-value pair for a given key. Timeout defines how long the function will
 // wait for a response
-func (c *EtcdClient) Get(key string, timeout int) (*KVPair, error) {
+func (c *EtcdClient) Get(key string, timeout int, lock ...bool) (*KVPair, error) {
 	duration := GetDuration(timeout)
 
 	ctx, cancel := context.WithTimeout(context.Background(), duration)
+
+	// Lock by default; otherwise lock per instructed value
+	if len(lock) == 0 || lock[0] {
+		session, _ := v3Concurrency.NewSession(c.ectdAPI, v3Concurrency.WithContext(ctx))
+		mu := v3Concurrency.NewMutex(session, "/lock" + key)
+		mu.Lock(context.Background())
+		defer mu.Unlock(context.Background())
+		defer session.Close()
+	}
+
 	resp, err := c.ectdAPI.Get(ctx, key)
 	cancel()
 	if err != nil {
@@ -96,7 +114,7 @@
 // Put writes a key-value pair to the KV store.  Value can only be a string or []byte since the etcd API
 // accepts only a string as a value for a put operation. Timeout defines how long the function will
 // wait for a response
-func (c *EtcdClient) Put(key string, value interface{}, timeout int) error {
+func (c *EtcdClient) Put(key string, value interface{}, timeout int, lock ...bool) error {
 
 	// Validate that we can convert value to a string as etcd API expects a string
 	var val string
@@ -108,6 +126,16 @@
 	duration := GetDuration(timeout)
 
 	ctx, cancel := context.WithTimeout(context.Background(), duration)
+
+	// Lock by default; otherwise lock per instructed value
+	if len(lock) == 0 || lock[0] {
+		session, _ := v3Concurrency.NewSession(c.ectdAPI, v3Concurrency.WithContext(ctx))
+		mu := v3Concurrency.NewMutex(session, "/lock" + key)
+		mu.Lock(context.Background())
+		defer mu.Unlock(context.Background())
+		defer session.Close()
+	}
+
 	c.writeLock.Lock()
 	defer c.writeLock.Unlock()
 	_, err := c.ectdAPI.Put(ctx, key, val)
@@ -130,11 +158,21 @@
 
 // Delete removes a key from the KV store. Timeout defines how long the function will
 // wait for a response
-func (c *EtcdClient) Delete(key string, timeout int) error {
+func (c *EtcdClient) Delete(key string, timeout int, lock ...bool) error {
 
 	duration := GetDuration(timeout)
 
 	ctx, cancel := context.WithTimeout(context.Background(), duration)
+
+	// Lock by default; otherwise lock per instructed value
+	if len(lock) == 0 || lock[0] {
+		session, _ := v3Concurrency.NewSession(c.ectdAPI, v3Concurrency.WithContext(ctx))
+		mu := v3Concurrency.NewMutex(session, "/lock" + key)
+		mu.Lock(context.Background())
+		defer mu.Unlock(context.Background())
+		defer session.Close()
+	}
+
 	defer cancel()
 
 	c.writeLock.Lock()
@@ -228,7 +266,7 @@
 		}
 	} else {
 		// Read the Key to ensure this is our Key
-		m, err := c.Get(key, defaultKVGetTimeout)
+		m, err := c.Get(key, defaultKVGetTimeout, false)
 		if err != nil {
 			return nil, err
 		}