Merge "objectcache: add metrics for WAN cache deletes and check key touches/resets"

[lhc/web/wiklou.git] / includes / libs / objectcache / WANObjectCache.php

diff --git a/includes/libs/objectcache/WANObjectCache.php b/includes/libs/objectcache/WANObjectCache.php
index 69c2a4d..41a3e4e 100644 (file)
--- a/includes/libs/objectcache/WANObjectCache.php
+++ b/includes/libs/objectcache/WANObjectCache.php
@@ -690,16 +690,17 @@ class WANObjectCache implements IExpiringStore, LoggerAwareInterface {
         * @return bool True if the item was purged or not found, false on failure
         */
        final public function delete( $key, $ttl = self::HOLDOFF_TTL ) {
-               $key = self::VALUE_KEY_PREFIX . $key;
-
                if ( $ttl <= 0 ) {
                        // Publish the purge to all datacenters
-                       $ok = $this->relayDelete( $key );
+                       $ok = $this->relayDelete( self::VALUE_KEY_PREFIX . $key );
                } else {
                        // Publish the purge to all datacenters
-                       $ok = $this->relayPurge( $key, $ttl, self::HOLDOFF_NONE );
+                       $ok = $this->relayPurge( self::VALUE_KEY_PREFIX . $key, $ttl, self::HOLDOFF_NONE );
                }
 
+               $kClass = $this->determineKeyClassForStats( $key );
+               $this->stats->increment( "wanobjectcache.$kClass.delete." . ( $ok ? 'ok' : 'error' ) );
+
                return $ok;
        }
 
@@ -854,7 +855,12 @@ class WANObjectCache implements IExpiringStore, LoggerAwareInterface {
         */
        final public function touchCheckKey( $key, $holdoff = self::HOLDOFF_TTL ) {
                // Publish the purge to all datacenters
-               return $this->relayPurge( self::TIME_KEY_PREFIX . $key, self::CHECK_KEY_TTL, $holdoff );
+               $ok = $this->relayPurge( self::TIME_KEY_PREFIX . $key, self::CHECK_KEY_TTL, $holdoff );
+
+               $kClass = $this->determineKeyClassForStats( $key );
+               $this->stats->increment( "wanobjectcache.$kClass.ck_touch." . ( $ok ? 'ok' : 'error' ) );
+
+               return $ok;
        }
 
        /**
@@ -886,7 +892,12 @@ class WANObjectCache implements IExpiringStore, LoggerAwareInterface {
         */
        final public function resetCheckKey( $key ) {
                // Publish the purge to all datacenters
-               return $this->relayDelete( self::TIME_KEY_PREFIX . $key );
+               $ok = $this->relayDelete( self::TIME_KEY_PREFIX . $key );
+
+               $kClass = $this->determineKeyClassForStats( $key );
+               $this->stats->increment( "wanobjectcache.$kClass.ck_reset." . ( $ok ? 'ok' : 'error' ) );
+
+               return $ok;
        }
 
        /**
@@ -1282,8 +1293,7 @@ class WANObjectCache implements IExpiringStore, LoggerAwareInterface {
                $touchedCb = $opts['touchedCallback'] ?? null;
                $initialTime = $this->getCurrentTime();
 
-               // Get a collection name to describe this class of key
-               $kClass = $this->determineKeyClass( $key );
+               $kClass = $this->determineKeyClassForStats( $key );
 
                // Get the current key value
                $curTTL = self::PASS_BY_REF;
@@ -2293,9 +2303,9 @@ class WANObjectCache implements IExpiringStore, LoggerAwareInterface {
 
        /**
         * @param string $key String of the format <scope>:<class>[:<class or variable>]...
-        * @return string
+        * @return string A collection name to describe this class of key
         */
-       protected function determineKeyClass( $key ) {
+       protected function determineKeyClassForStats( $key ) {
                $parts = explode( ':', $key );
 
                return $parts[1] ?? $parts[0]; // sanity