diff --git a/tests/phpunit/includes/object-cache.php b/tests/phpunit/includes/object-cache.php
index ef03546892037..92c4d75f9e23d 100644
--- a/tests/phpunit/includes/object-cache.php
+++ b/tests/phpunit/includes/object-cache.php
@@ -987,6 +987,8 @@ public function __construct( $persistent_id = null ) {
 	 * @return bool True on success, false on failure.
 	 */
 	public function add( $key, $value, $group = 'default', $expiration = 0, $server_key = '', $by_key = false ) {
+		do_action( 'wp_memcached_add', $key, $value, $group, $expiration, $server_key, $by_key );
+
 		/*
 		 * Ensuring that wp_suspend_cache_addition is defined before calling, because sometimes an advanced-cache.php
 		 * file will load object-cache.php before wp-includes/functions.php is loaded. In those cases, if wp_cache_add
@@ -1016,8 +1018,10 @@ public function add( $key, $value, $group = 'default', $expiration = 0, $server_
 
 		// Save to Memcached.
 		if ( $by_key ) {
+			do_action( 'wp_memcached_external_add_by_key', $server_key, $derived_key, $value, $expiration );
 			$result = $this->m->addByKey( $server_key, $derived_key, $value, $expiration );
 		} else {
+			do_action( 'wp_memcached_external_add', $derived_key, $value, $expiration );
 			$result = $this->m->add( $derived_key, $value, $expiration );
 		}
 
@@ -1047,6 +1051,7 @@ public function add( $key, $value, $group = 'default', $expiration = 0, $server_
 	 * @return bool True on success, false on failure.
 	 */
 	public function addByKey( $server_key, $key, $value, $group = 'default', $expiration = 0 ) {
+		do_action( 'wp_memcached_add_by_key', $server_key, $key, $value, $group, $expiration );
 		return $this->add( $key, $value, $group, $expiration, $server_key, true );
 	}
 
@@ -1061,6 +1066,7 @@ public function addByKey( $server_key, $key, $value, $group = 'default', $expira
 	 *                true on success, or false if cache key and group already exist.
 	 */
 	public function addMultiple( array $items, $group = '', $expiration = 0 ) {
+		do_action( 'wp_memcached_add_multiple', $items, $group, $expiration );
 		$values = array();
 
 		foreach ( $items as $key => $value ) {
@@ -1082,10 +1088,12 @@ public function addMultiple( array $items, $group = '', $expiration = 0 ) {
 	 * @return bool True on success, false on failure.
 	 */
 	public function addServer( $host, $port, $weight = 0 ) {
+		do_action( 'wp_memcached_add_server', $host, $port, $weight );
 		$host   = is_string( $host ) ? $host : '127.0.0.1';
 		$port   = is_numeric( $port ) && $port > 0 ? $port : 11211;
 		$weight = is_numeric( $weight ) && $weight > 0 ? $weight : 1;
 
+		do_action( 'wp_memcached_external_add_server', $host, $port, $weight );
 		return $this->m->addServer( $host, $port, $weight );
 	}
 
@@ -1101,10 +1109,12 @@ public function addServer( $host, $port, $weight = 0 ) {
 	 * @return bool True on success, false on failure.
 	 */
 	public function addServers( $servers ) {
+		do_action( 'wp_memcached_add_servers', $servers );
 		if ( ! is_object( $this->m ) ) {
 			return false;
 		}
 
+		do_action( 'wp_memcached_external_add_servers', $servers );
 		return $this->m->addServers( $servers );
 	}
 
@@ -1128,6 +1138,7 @@ public function addServers( $servers ) {
 	 * @return bool True on success, false on failure.
 	 */
 	public function append( $key, $value, $group = 'default', $server_key = '', $by_key = false ) {
+		do_action( 'wp_memcached_append', $key, $value, $group, $server_key, $by_key );
 		if ( ! is_string( $value ) && ! is_int( $value ) && ! is_float( $value ) ) {
 			return false;
 		}
@@ -1147,8 +1158,10 @@ public function append( $key, $value, $group = 'default', $server_key = '', $by_
 
 		// Append to Memcached value.
 		if ( $by_key ) {
+			do_action( 'wp_memcached_external_append_by_key', $server_key, $derived_key, $value );
 			$result = $this->m->appendByKey( $server_key, $derived_key, $value );
 		} else {
+			do_action( 'wp_memcached_external_append', $derived_key, $value );
 			$result = $this->m->append( $derived_key, $value );
 		}
 
@@ -1180,6 +1193,7 @@ public function append( $key, $value, $group = 'default', $server_key = '', $by_
 	 * @return bool True on success, false on failure.
 	 */
 	public function appendByKey( $server_key, $key, $value, $group = 'default' ) {
+		do_action( 'wp_memcached_append_by_key', $server_key, $key, $value, $group );
 		return $this->append( $key, $value, $group, $server_key, true );
 	}
 
@@ -1201,6 +1215,7 @@ public function appendByKey( $server_key, $key, $value, $group = 'default' ) {
 	 * @return bool True on success, false on failure.
 	 */
 	public function cas( $cas_token, $key, $value, $group = 'default', $expiration = 0, $server_key = '', $by_key = false ) {
+		do_action( 'wp_memcached_cas', $cas_token, $key, $value, $group, $expiration, $server_key, $by_key );
 		$derived_key = $this->buildKey( $key, $group );
 
 		/**
@@ -1217,8 +1232,10 @@ public function cas( $cas_token, $key, $value, $group = 'default', $expiration =
 
 		// Save to Memcached.
 		if ( $by_key ) {
+			do_action( 'wp_memcached_external_cas_by_key', $cas_token, $server_key, $derived_key, $value, $expiration );
 			$result = $this->m->casByKey( $cas_token, $server_key, $derived_key, $value, $expiration );
 		} else {
+			do_action( 'wp_memcached_external_cas', $cas_token, $derived_key, $value, $expiration );
 			$result = $this->m->cas( $cas_token, $derived_key, $value, $expiration );
 		}
 
@@ -1247,6 +1264,7 @@ public function cas( $cas_token, $key, $value, $group = 'default', $expiration =
 	 * @return bool True on success, false on failure.
 	 */
 	public function casByKey( $cas_token, $server_key, $key, $value, $group = 'default', $expiration = 0 ) {
+		do_action( 'wp_memcached_cas_by_key', $cas_token, $server_key, $key, $value, $group, $expiration );
 		return $this->cas( $cas_token, $key, $value, $group, $expiration, $server_key, true );
 	}
 
@@ -1261,6 +1279,7 @@ public function casByKey( $cas_token, $server_key, $key, $value, $group = 'defau
 	 * @return int|bool Item's new value on success, false on failure.
 	 */
 	public function decrement( $key, $offset = 1, $group = 'default' ) {
+		do_action( 'wp_memcached_decrement', $key, $offset, $group );
 		$derived_key = $this->buildKey( $key, $group );
 
 		// Decrement values in no_mc_groups.
@@ -1287,6 +1306,7 @@ public function decrement( $key, $offset = 1, $group = 'default' ) {
 			}
 		}
 
+		do_action( 'wp_memcached_external_decrement', $derived_key, $offset );
 		$result = $this->m->decrement( $derived_key, $offset );
 
 		if ( Memcached::RES_SUCCESS === $this->getResultCode() ) {
@@ -1309,6 +1329,7 @@ public function decrement( $key, $offset = 1, $group = 'default' ) {
 	 * @return int|bool Item's new value on success, false on failure.
 	 */
 	public function decr( $key, $offset = 1, $group = 'default' ) {
+		do_action( 'wp_memcached_decr', $key, $offset, $group );
 		return $this->decrement( $key, $offset, $group );
 	}
 
@@ -1330,6 +1351,7 @@ public function decr( $key, $offset = 1, $group = 'default' ) {
 	 * @return bool True on success, false on failure.
 	 */
 	public function delete( $key, $group = 'default', $time = 0, $server_key = '', $by_key = false ) {
+		do_action( 'wp_memcached_delete', $key, $group, $time, $server_key, $by_key );
 		$derived_key = $this->buildKey( $key, $group );
 
 		// Remove from no_mc_groups array.
@@ -1342,8 +1364,10 @@ public function delete( $key, $group = 'default', $time = 0, $server_key = '', $
 		}
 
 		if ( $by_key ) {
+			do_action( 'wp_memcached_external_delete_by_key', $server_key, $derived_key, $time );
 			$result = $this->m->deleteByKey( $server_key, $derived_key, $time );
 		} else {
+			do_action( 'wp_memcached_external_delete', $derived_key, $time );
 			$result = $this->m->delete( $derived_key, $time );
 		}
 
@@ -1371,6 +1395,7 @@ public function delete( $key, $group = 'default', $time = 0, $server_key = '', $
 	 * @return bool True on success, false on failure.
 	 */
 	public function deleteByKey( $server_key, $key, $group = 'default', $time = 0 ) {
+		do_action( 'wp_memcached_delete_by_key', $server_key, $key, $group, $time );
 		return $this->delete( $key, $group, $time, $server_key, true );
 	}
 
@@ -1383,6 +1408,7 @@ public function deleteByKey( $server_key, $key, $group = 'default', $time = 0 )
 	 *                true on success, or false if the contents were not deleted.
 	 */
 	public function deleteMultiple( $keys, $group ) {
+		do_action( 'wp_memcached_delete_multiple', $keys, $group );
 		$values = array();
 
 		foreach ( $keys as $key ) {
@@ -1400,6 +1426,8 @@ public function deleteMultiple( $keys, $group ) {
 	 * @return array|false The next result on success, false on failure.
 	 */
 	public function fetch() {
+		do_action( 'wp_memcached_fetch' );
+		do_action( 'wp_memcached_external_fetch' );
 		return $this->m->fetch();
 	}
 
@@ -1411,6 +1439,8 @@ public function fetch() {
 	 * @return array|false The results on success, false on failure.
 	 */
 	public function fetchAll() {
+		do_action( 'wp_memcached_fetch_all' );
+		do_action( 'wp_memcached_external_fetch_all' );
 		return $this->m->fetchAll();
 	}
 
@@ -1423,6 +1453,8 @@ public function fetchAll() {
 	 * @return bool True on success, false on failure.
 	 */
 	public function flush( $delay = 0 ) {
+		do_action( 'wp_memcached_flush', $delay );
+		do_action( 'wp_memcached_external_flush', $delay );
 		$result = $this->m->flush( $delay );
 
 		// Only reset the runtime cache if memcached was properly flushed.
@@ -1439,6 +1471,7 @@ public function flush( $delay = 0 ) {
 	 * @return bool Always returns true.
 	 */
 	public function flush_runtime() {
+		do_action( 'wp_memcached_flush_runtime' );
 		$this->cache = array();
 
 		return true;
@@ -1470,6 +1503,7 @@ public function flush_runtime() {
 	 * @return bool|mixed Cached object value.
 	 */
 	public function get( $key, $group = 'default', $force = false, &$found = null, $server_key = '', $by_key = false, $cache_cb = null, &$cas_token = null ) {
+		do_action( 'wp_memcached_get', $key, $group, $force, $found, $server_key, $by_key, $cache_cb, $cas_token );
 		$derived_key = $this->buildKey( $key, $group );
 
 		// Assume object is not found.
@@ -1478,8 +1512,10 @@ public function get( $key, $group = 'default', $force = false, &$found = null, $
 		// If either $cache_db, or $cas_token is set, must hit Memcached and bypass runtime cache.
 		if ( func_num_args() > 6 && ! in_array( $group, $this->no_mc_groups, true ) ) {
 			if ( $by_key ) {
+				do_action( 'wp_memcached_external_get_by_key', $server_key, $derived_key, $cache_cb, $cas_token );
 				$value = $this->m->getByKey( $server_key, $derived_key, $cache_cb, $cas_token );
 			} else {
+				do_action( 'wp_memcached_external_get', $derived_key, $cache_cb, $cas_token );
 				$value = $this->m->get( $derived_key, $cache_cb, $cas_token );
 			}
 		} else {
@@ -1490,8 +1526,10 @@ public function get( $key, $group = 'default', $force = false, &$found = null, $
 				return false;
 			} else {
 				if ( $by_key ) {
+					do_action( 'wp_memcached_external_get_by_key', $server_key, $derived_key );
 					$value = $this->m->getByKey( $server_key, $derived_key );
 				} else {
+					do_action( 'wp_memcached_external_get', $derived_key );
 					$value = $this->m->get( $derived_key );
 				}
 			}
@@ -1530,6 +1568,7 @@ public function get( $key, $group = 'default', $force = false, &$found = null, $
 	 * @return bool|mixed Cached object value.
 	 */
 	public function getByKey( $server_key, $key, $group = 'default', $force = false, &$found = null, $cache_cb = null, &$cas_token = null ) {
+		do_action( 'wp_memcached_get_by_key', $server_key, $key, $group, $force, $found, $cache_cb, $cas_token );
 		/**
 		 * Need to be careful how "get" is called. If you send $cache_cb, and $cas_token, it will hit memcached.
 		 * Only send those args if they were sent to this function.
@@ -1554,7 +1593,9 @@ public function getByKey( $server_key, $key, $group = 'default', $force = false,
 	 * @return bool True on success, false on failure.
 	 */
 	public function getDelayed( $keys, $groups = 'default', $with_cas = false, $value_cb = null ) {
+		do_action( 'wp_memcached_get_delayed', $keys, $groups, $with_cas, $value_cb );
 		$derived_keys = $this->buildKeys( $keys, $groups );
+		do_action( 'wp_memcached_external_get_delayed', $derived_keys, $with_cas, $value_cb );
 		return $this->m->getDelayed( $derived_keys, $with_cas, $value_cb );
 	}
 
@@ -1572,7 +1613,9 @@ public function getDelayed( $keys, $groups = 'default', $with_cas = false, $valu
 	 * @return bool True on success, false on failure.
 	 */
 	public function getDelayedByKey( $server_key, $keys, $groups = 'default', $with_cas = false, $value_cb = null ) {
+		do_action( 'wp_memcached_get_delayed_by_key', $server_key, $keys, $groups, $with_cas, $value_cb );
 		$derived_keys = $this->buildKeys( $keys, $groups );
+		do_action( 'wp_memcached_external_get_delayed_by_key', $server_key, $derived_keys, $with_cas, $value_cb );
 		return $this->m->getDelayedByKey( $server_key, $derived_keys, $with_cas, $value_cb );
 	}
 
@@ -1592,6 +1635,7 @@ public function getDelayedByKey( $server_key, $keys, $groups = 'default', $with_
 	 * @return bool|array The array of found items on success, false on failure.
 	 */
 	public function getMulti( $keys, $groups = 'default', $server_key = '', &$cas_tokens = null, $flags = null ) {
+		do_action( 'wp_memcached_get_multi', $keys, $groups, $server_key, $cas_tokens, $flags );
 		$derived_keys = $this->buildKeys( $keys, $groups );
 
 		/**
@@ -1601,8 +1645,10 @@ public function getMulti( $keys, $groups = 'default', $server_key = '', &$cas_to
 		 */
 		if ( func_num_args() > 3 && ! $this->contains_no_mc_group( $groups ) ) {
 			if ( ! empty( $server_key ) ) {
+				do_action( 'wp_memcached_external_get_multi_by_key', $server_key, $derived_keys, $cas_tokens, $flags );
 				$values = $this->m->getMultiByKey( $server_key, $derived_keys, $cas_tokens, $flags );
 			} else {
+				do_action( 'wp_memcached_external_get_multi', $derived_keys, $cas_tokens, $flags );
 				$values = $this->m->getMulti( $derived_keys, $cas_tokens, $flags );
 			}
 		} else {
@@ -1621,8 +1667,10 @@ public function getMulti( $keys, $groups = 'default', $server_key = '', &$cas_to
 			// Get those keys not found in the runtime cache.
 			if ( ! empty( $need_to_get ) ) {
 				if ( ! empty( $server_key ) ) {
+					do_action( 'wp_memcached_external_get_multi_by_key', $server_key, array_keys( $need_to_get ) );
 					$result = $this->m->getMultiByKey( $server_key, array_keys( $need_to_get ) );
 				} else {
+					do_action( 'wp_memcached_external_get_multi', array_keys( $need_to_get ) );
 					$result = $this->m->getMulti( array_keys( $need_to_get ) );
 				}
 			}
@@ -1669,6 +1717,7 @@ public function getMulti( $keys, $groups = 'default', $server_key = '', &$cas_to
 	 * @return bool|array The array of found items on success, false on failure.
 	 */
 	public function getMultiByKey( $server_key, $keys, $groups = 'default', &$cas_tokens = null, $flags = null ) {
+		do_action( 'wp_memcached_get_multi_by_key', $server_key, $keys, $groups, $cas_tokens, $flags );
 		/**
 		 * Need to be careful how "getMulti" is called. If you send $cache_cb, and $cas_token, it will hit memcached.
 		 * Only send those args if they were sent to this function.
@@ -1691,6 +1740,7 @@ public function getMultiByKey( $server_key, $keys, $groups = 'default', &$cas_to
 	 *               the cache contents on success, or false on failure.
 	 */
 	public function getMultiple( $keys, $group = '', $force = false ) {
+		do_action( 'wp_memcached_get_multiple', $keys, $group, $force );
 		$values = array();
 
 		foreach ( $keys as $key ) {
@@ -1711,6 +1761,8 @@ public function getMultiple( $keys, $group = '', $force = false ) {
 	 * @return mixed The value of the requested option on success, false on failure.
 	 */
 	public function getOption( $option ) {
+		do_action( 'wp_memcached_get_option', $option );
+		do_action( 'wp_memcached_external_get_option', $option );
 		return $this->m->getOption( $option );
 	}
 
@@ -1722,6 +1774,8 @@ public function getOption( $option ) {
 	 * @return int Result code of the last Memcached operation.
 	 */
 	public function getResultCode() {
+		do_action( 'wp_memcached_get_result_code' );
+		do_action( 'wp_memcached_external_get_result_code' );
 		return $this->m->getResultCode();
 	}
 
@@ -1733,6 +1787,8 @@ public function getResultCode() {
 	 * @return string Message describing the result of the last Memcached operation.
 	 */
 	public function getResultMessage() {
+		do_action( 'wp_memcached_get_result_message' );
+		do_action( 'wp_memcached_external_get_result_message' );
 		return $this->m->getResultMessage();
 	}
 
@@ -1745,6 +1801,8 @@ public function getResultMessage() {
 	 * @return array Array with host, post, and weight on success, false on failure.
 	 */
 	public function getServerByKey( $server_key ) {
+		do_action( 'wp_memcached_get_server_by_key', $server_key );
+		do_action( 'wp_memcached_external_get_server_by_key', $server_key );
 		return $this->m->getServerByKey( $server_key );
 	}
 
@@ -1756,6 +1814,8 @@ public function getServerByKey( $server_key ) {
 	 * @return array The list of all servers in the server pool.
 	 */
 	public function getServerList() {
+		do_action( 'wp_memcached_get_server_list' );
+		do_action( 'wp_memcached_external_get_server_list' );
 		return $this->m->getServerList();
 	}
 
@@ -1767,6 +1827,8 @@ public function getServerList() {
 	 * @return array Array of server statistics, one entry per server.
 	 */
 	public function getStats() {
+		do_action( 'wp_memcached_get_stats' );
+		do_action( 'wp_memcached_external_get_stats' );
 		return $this->m->getStats();
 	}
 
@@ -1778,6 +1840,8 @@ public function getStats() {
 	 * @return array Array of server versions, one entry per server.
 	 */
 	public function getVersion() {
+		do_action( 'wp_memcached_get_version' );
+		do_action( 'wp_memcached_external_get_version' );
 		return $this->m->getVersion();
 	}
 
@@ -1792,6 +1856,7 @@ public function getVersion() {
 	 * @return int|bool Item's new value on success, false on failure.
 	 */
 	public function increment( $key, $offset = 1, $group = 'default' ) {
+		do_action( 'wp_memcached_increment', $key, $offset, $group );
 		$derived_key = $this->buildKey( $key, $group );
 
 		// Increment values in no_mc_groups.
@@ -1818,6 +1883,7 @@ public function increment( $key, $offset = 1, $group = 'default' ) {
 			}
 		}
 
+		do_action( 'wp_memcached_external_increment', $derived_key, $offset );
 		$result = $this->m->increment( $derived_key, $offset );
 
 		if ( Memcached::RES_SUCCESS === $this->getResultCode() ) {
@@ -1841,6 +1907,7 @@ public function increment( $key, $offset = 1, $group = 'default' ) {
 	 * @return int|bool Item's new value on success, false on failure.
 	 */
 	public function incr( $key, $offset = 1, $group = 'default' ) {
+		do_action( 'wp_memcached_incr', $key, $offset, $group );
 		return $this->increment( $key, $offset, $group );
 	}
 
@@ -1865,6 +1932,7 @@ public function incr( $key, $offset = 1, $group = 'default' ) {
 	 * @return bool True on success, false on failure.
 	 */
 	public function prepend( $key, $value, $group = 'default', $server_key = '', $by_key = false ) {
+		do_action( 'wp_memcached_prepend', $key, $value, $group, $server_key, $by_key );
 		if ( ! is_string( $value ) && ! is_int( $value ) && ! is_float( $value ) ) {
 			return false;
 		}
@@ -1884,8 +1952,10 @@ public function prepend( $key, $value, $group = 'default', $server_key = '', $by
 
 		// Append to Memcached value.
 		if ( $by_key ) {
+			do_action( 'wp_memcached_external_prepend_by_key', $server_key, $derived_key, $value );
 			$result = $this->m->prependByKey( $server_key, $derived_key, $value );
 		} else {
+			do_action( 'wp_memcached_external_prepend', $derived_key, $value );
 			$result = $this->m->prepend( $derived_key, $value );
 		}
 
@@ -1918,6 +1988,7 @@ public function prepend( $key, $value, $group = 'default', $server_key = '', $by
 	 * @return bool True on success, false on failure.
 	 */
 	public function prependByKey( $server_key, $key, $value, $group = 'default' ) {
+		do_action( 'wp_memcached_prepend_by_key', $server_key, $key, $value, $group );
 		return $this->prepend( $key, $value, $group, $server_key, true );
 	}
 
@@ -1938,6 +2009,7 @@ public function prependByKey( $server_key, $key, $value, $group = 'default' ) {
 	 * @return bool True on success, false on failure.
 	 */
 	public function replace( $key, $value, $group = 'default', $expiration = 0, $server_key = '', $by_key = false ) {
+		do_action( 'wp_memcached_replace', $key, $value, $group, $expiration, $server_key, $by_key );
 		$derived_key = $this->buildKey( $key, $group );
 
 		// If group is a non-Memcached group, save to runtime cache, not Memcached.
@@ -1956,8 +2028,10 @@ public function replace( $key, $value, $group = 'default', $expiration = 0, $ser
 
 		// Save to Memcached.
 		if ( $by_key ) {
+			do_action( 'wp_memcached_external_replace_by_key', $server_key, $derived_key, $value, $expiration );
 			$result = $this->m->replaceByKey( $server_key, $derived_key, $value, $expiration );
 		} else {
+			do_action( 'wp_memcached_external_replace', $derived_key, $value, $expiration );
 			$result = $this->m->replace( $derived_key, $value, $expiration );
 		}
 
@@ -1985,6 +2059,7 @@ public function replace( $key, $value, $group = 'default', $expiration = 0, $ser
 	 * @return bool True on success, false on failure.
 	 */
 	public function replaceByKey( $server_key, $key, $value, $group = 'default', $expiration = 0 ) {
+		do_action( 'wp_memcached_replace_by_key', $server_key, $key, $value, $group, $expiration );
 		return $this->replace( $key, $value, $group, $expiration, $server_key, true );
 	}
 
@@ -2004,6 +2079,7 @@ public function replaceByKey( $server_key, $key, $value, $group = 'default', $ex
 	 * @return bool True on success, false on failure.
 	 */
 	public function set( $key, $value, $group = 'default', $expiration = 0, $server_key = '', $by_key = false ) {
+		do_action( 'wp_memcached_set', $key, $value, $group, $expiration, $server_key, $by_key );
 		$derived_key = $this->buildKey( $key, $group );
 
 		// If group is a non-Memcached group, save to runtime cache, not Memcached.
@@ -2016,8 +2092,10 @@ public function set( $key, $value, $group = 'default', $expiration = 0, $server_
 
 		// Save to Memcached.
 		if ( $by_key ) {
+			do_action( 'wp_memcached_external_set_by_key', $server_key, $derived_key, $value, $expiration );
 			$result = $this->m->setByKey( $server_key, $derived_key, $value, $expiration );
 		} else {
+			do_action( 'wp_memcached_external_set', $derived_key, $value, $expiration );
 			$result = $this->m->set( $derived_key, $value, $expiration );
 		}
 
@@ -2044,6 +2122,7 @@ public function set( $key, $value, $group = 'default', $expiration = 0, $server_
 	 * @return bool True on success, false on failure.
 	 */
 	public function setByKey( $server_key, $key, $value, $group = 'default', $expiration = 0 ) {
+		do_action( 'wp_memcached_set_by_key', $server_key, $key, $value, $group, $expiration );
 		return $this->set( $key, $value, $group, $expiration, $server_key, true );
 	}
 
@@ -2066,6 +2145,7 @@ public function setByKey( $server_key, $key, $value, $group = 'default', $expira
 	 * @return bool True on success, false on failure.
 	 */
 	public function setMulti( $items, $groups = 'default', $expiration = 0, $server_key = '', $by_key = false ) {
+		do_action( 'wp_memcached_set_multi', $items, $groups, $expiration, $server_key, $by_key );
 		// Build final keys and replace $items keys with the new keys.
 		$derived_keys  = $this->buildKeys( array_keys( $items ), $groups );
 		$derived_items = array_combine( $derived_keys, $items );
@@ -2087,8 +2167,10 @@ public function setMulti( $items, $groups = 'default', $expiration = 0, $server_
 
 		// Save to memcached.
 		if ( $by_key ) {
+			do_action( 'wp_memcached_external_set_multi_by_key', $server_key, $derived_items, $expiration );
 			$result = $this->m->setMultiByKey( $server_key, $derived_items, $expiration );
 		} else {
+			do_action( 'wp_memcached_external_set_multi', $derived_items, $expiration );
 			$result = $this->m->setMulti( $derived_items, $expiration );
 		}
 
@@ -2118,6 +2200,7 @@ public function setMulti( $items, $groups = 'default', $expiration = 0, $server_
 	 * @return bool True on success, false on failure.
 	 */
 	public function setMultiByKey( $server_key, $items, $groups = 'default', $expiration = 0 ) {
+		do_action( 'wp_memcached_set_multi_by_key', $server_key, $items, $groups, $expiration );
 		return $this->setMulti( $items, $groups, $expiration, $server_key, true );
 	}
 
@@ -2132,6 +2215,7 @@ public function setMultiByKey( $server_key, $items, $groups = 'default', $expira
 	 *                true on success, or false on failure.
 	 */
 	public function setMultiple( array $items, $group = '', $expiration = 0 ) {
+		do_action( 'wp_memcached_set_multiple', $items, $group, $expiration );
 		$values = array();
 
 		foreach ( $items as $key => $value ) {
@@ -2151,6 +2235,8 @@ public function setMultiple( array $items, $group = '', $expiration = 0 ) {
 	 * @return bool True on success, false on failure.
 	 */
 	public function setOption( $option, $value ) {
+		do_action( 'wp_memcached_set_option', $option, $value );
+		do_action( 'wp_memcached_external_set_option', $option, $value );
 		return $this->m->setOption( $option, $value );
 	}
 
@@ -2167,6 +2253,7 @@ public function setOption( $option, $value ) {
 	 * @return string
 	 */
 	public function buildKey( $key, $group = 'default' ) {
+		do_action( 'wp_memcached_build_key', $key, $group );
 		if ( empty( $group ) ) {
 			$group = 'default';
 		}
@@ -2197,6 +2284,7 @@ public function buildKey( $key, $group = 'default' ) {
 	 * @return array Array that combines keys and groups into a single set of memcached keys.
 	 */
 	public function buildKeys( $keys, $groups = 'default' ) {
+		do_action( 'wp_memcached_build_keys', $keys, $groups );
 		$derived_keys = array();
 
 		// If strings sent, convert to arrays for proper handling.
@@ -2243,6 +2331,7 @@ public function buildKeys( $keys, $groups = 'default' ) {
 	 * @return string|int The sanitized expiration time.
 	 */
 	public function sanitize_expiration( $expiration ) {
+		do_action( 'wp_memcached_sanitize_expiration', $expiration );
 		if ( $expiration > $this->thirty_days && $expiration <= $this->now ) {
 			$expiration = $expiration + $this->now;
 		}
@@ -2263,6 +2352,7 @@ public function sanitize_expiration( $expiration ) {
 	 * @return mixed Combined value casted to the type of the first value.
 	 */
 	public function combine_values( $original, $pended, $direction ) {
+		do_action( 'wp_memcached_combine_values', $original, $pended, $direction );
 		$type = gettype( $original );
 
 		// Combine the values based on direction of the "pend".
@@ -2285,6 +2375,7 @@ public function combine_values( $original, $pended, $direction ) {
 	 * @param mixed  $value       Object value.
 	 */
 	public function add_to_internal_cache( $derived_key, $value ) {
+		do_action( 'wp_memcached_add_to_internal_cache', $derived_key, $value );
 		if ( is_object( $value ) ) {
 			$value = clone $value;
 		}
@@ -2299,6 +2390,7 @@ public function add_to_internal_cache( $derived_key, $value ) {
 	 * @return bool True if a no_mc_group is present; false if a no_mc_group is not present.
 	 */
 	public function contains_no_mc_group( $groups ) {
+		do_action( 'wp_memcached_contains_no_mc_group', $groups );
 		if ( is_scalar( $groups ) ) {
 			return in_array( $groups, $this->no_mc_groups, true );
 		}
@@ -2327,6 +2419,7 @@ public function contains_no_mc_group( $groups ) {
 	 * @param array $groups Array of groups.
 	 */
 	public function add_global_groups( $groups ) {
+		do_action( 'wp_memcached_add_global_groups', $groups );
 		if ( ! is_array( $groups ) ) {
 			$groups = (array) $groups;
 		}
@@ -2346,6 +2439,7 @@ public function add_global_groups( $groups ) {
 	 * @param array $groups Array of groups.
 	 */
 	public function add_non_persistent_groups( $groups ) {
+		do_action( 'wp_memcached_add_non_persistent_groups', $groups );
 		if ( ! is_array( $groups ) ) {
 			$groups = (array) $groups;
 		}
@@ -2362,6 +2456,7 @@ public function add_non_persistent_groups( $groups ) {
 	 * @return bool|mixed Value on success, false on failure.
 	 */
 	public function get_from_runtime_cache( $key, $group ) {
+		do_action( 'wp_memcached_get_from_runtime_cache', $key, $group );
 		$derived_key = $this->buildKey( $key, $group );
 
 		if ( isset( $this->cache[ $derived_key ] ) ) {
@@ -2377,6 +2472,7 @@ public function get_from_runtime_cache( $key, $group ) {
 	 * @param int $blog_id Blog to switch to.
 	 */
 	public function switch_to_blog( $blog_id ) {
+		do_action( 'wp_memcached_switch_to_blog', $blog_id );
 		global $table_prefix;
 		$blog_id           = (int) $blog_id;
 		$this->blog_prefix = ( is_multisite() ? $blog_id : $table_prefix ) . ':';
diff --git a/tests/phpunit/tests/option/option.php b/tests/phpunit/tests/option/option.php
index 36a40d9a2f495..4230899855354 100644
--- a/tests/phpunit/tests/option/option.php
+++ b/tests/phpunit/tests/option/option.php
@@ -548,4 +548,48 @@ public function test_add_option_clears_the_notoptions_cache() {
 		$updated_notoptions = wp_cache_get( 'notoptions', 'options' );
 		$this->assertArrayNotHasKey( $option_name, $updated_notoptions, 'The "foobar" option should not be in the notoptions cache after adding it.' );
 	}
+
+	/**
+	 * Test that get_option() does not hit the external cache multiple times for the same option.
+	 *
+	 * @ticket 62692
+	 *
+	 * @dataProvider data_get_option_does_not_hit_the_external_cache_multiple_times_for_the_same_option
+	 *
+	 * @param bool $option_exists
+	 * @param string $option_name
+	 */
+	public function test_get_option_does_not_hit_the_external_cache_multiple_times_for_the_same_option( $option_exists = true, $option_name = 'ticket-62692' ) {
+		if ( $option_exists ) {
+			add_option( $option_name, 'value' );
+		}
+
+		$number_external_cache_hits = 0;
+
+		add_action(
+			'wp_memcached_external_get',
+			function () use ( &$number_external_cache_hits ) {
+				$number_external_cache_hits++;
+			}
+		);
+
+		$call_getter = 10;
+		while ( $call_getter-- ) {
+			get_option( $option_name );
+		}
+
+		$this->assertSame( 0, $number_external_cache_hits );
+	}
+
+	/**
+	 * Data provider.
+	 *
+	 * @return array[]
+	 */
+	public function data_get_option_does_not_hit_the_external_cache_multiple_times_for_the_same_option() {
+		return array(
+			array( true ),
+			array( false ),
+		);
+	}
 }