Patch-Cm_Cache_Backend_Redis-1.10.6-remove-by-chunks.patch

diff -Naur Cm/Cache/Backend/Redis.php Cm/Cache/Backend/Redis.php
--- Cm/Cache/Backend/Redis.php
+++ Cm/Cache/Backend/Redis.php
@@ -688,20 +688,23 @@
      */
     protected function _removeByMatchingTags($tags)
     {
+        $maxCount = 10000;
         $ids = $this->getIdsMatchingTags($tags);
         if($ids)
         {
-            $this->_redis->pipeline()->multi();
+            $ids = array_chunk($ids, $maxCount);
+            foreach ($ids as $batchedIds) {
+                $this->_redis->pipeline()->multi();
 
-            // Remove data
-            $this->_redis->del( $this->_preprocessIds($ids));
+                // Remove data
+                $this->_redis->del( $this->_preprocessIds($batchedIds));
 
-            // Remove ids from list of all ids
-            if($this->_notMatchingTags) {
-                $this->_redis->sRem( self::SET_IDS, $ids);
+                // Remove ids from list of all ids
+                if($this->_notMatchingTags) {
+                    $this->_redis->sRem( self::SET_IDS, $batchedIds);
+                }
+                $this->_redis->exec();
             }
-
-            $this->_redis->exec();
         }
     }