diff --git a/common/log/class.SingleFileAppender.php b/common/log/class.SingleFileAppender.php
index 8bad1d9ec..7c60bf617 100644
--- a/common/log/class.SingleFileAppender.php
+++ b/common/log/class.SingleFileAppender.php
@@ -136,11 +136,17 @@ protected function initFile()
     {
         if ($this->maxFileSize > 0 && file_exists($this->filename) && filesize($this->filename) >= $this->maxFileSize) {
             // need to reduce the file size
-            $file = file($this->filename);
-            $file = array_splice($file, ceil(count($file) * $this->reduceRatio));
+            $reduceLen= ($this->maxFileSize< (int)ini_get('memory_limit')*1024?$this->maxFileSize:(int)ini_get('memory_limit')*1024)*$this->reduceRatio;
+            $size = filesize($this->filename)-$reduceLen;
+            $log =file_get_contents($this->filename, false, null,  $size, $reduceLen );
+
+            $log= explode(PHP_EOL, $log);
+            //delete first element (can be broken)
+            array_shift($log);
+
             $this->filehandle = @fopen($this->filename, 'w');
-            foreach ($file as $line) {
-                @fwrite($this->filehandle, $line);
+            foreach ($log as $line) {
+                @fwrite($this->filehandle, $line.PHP_EOL);
             }
         } else {
             $this->filehandle = @fopen($this->filename, 'a');
diff --git a/manifest.php b/manifest.php
index 813974414..dcf44dcf8 100755
--- a/manifest.php
+++ b/manifest.php
@@ -31,7 +31,7 @@
     'label' => 'Generis Core',
     'description' => 'Core extension, provide the low level framework and an API to manage ontologies',
     'license' => 'GPL-2.0',
-    'version' => '8.2.1',
+    'version' => '8.2.2',
     'author' => 'Open Assessment Technologies, CRP Henri Tudor',
     'requires' => array(),
     'models' => array(
diff --git a/scripts/update/Updater.php b/scripts/update/Updater.php
index 76f68b8e9..23253a09e 100644
--- a/scripts/update/Updater.php
+++ b/scripts/update/Updater.php
@@ -361,6 +361,6 @@ public function update($initialVersion)
             $this->setVersion('8.0.0');
         }
 
-        $this->skip('8.0.0', '8.2.1');
+        $this->skip('8.0.0', '8.2.2');
     }
 }