initial commit; version 22.5.12042

includes/housekeeping/syslog.inc.php

@@ -0,0 +1,58 @@
+<?php
+
+/**
+ * Observium
+ *
+ *   This file is part of Observium.
+ *
+ * @package    observium
+ * @subpackage housekeeping
+ * @author     Adam Armstrong <adama@observium.org>
+ * @copyright  (C) 2006-2013 Adam Armstrong, (C) 2013-2019 Observium Limited
+ *
+ */
+
+// Minimum allowed age for delete syslog entries times is 24h
+$cutoff = age_to_unixtime($config['housekeeping']['syslog']['age'], age_to_seconds('24h'));
+
+if ($cutoff)
+{
+  $where = "`timestamp` < FROM_UNIXTIME($cutoff)";
+  $count = dbFetchCell("SELECT COUNT(*) FROM `syslog` WHERE $where");
+  if ($count)
+  {
+    if ($prompt)
+    {
+      $answer = print_prompt("$count syslog entries older than " . format_unixtime($cutoff) . " will be deleted");
+    }
+
+    if ($answer)
+    {
+      $rows = dbDelete('syslog', "$where");
+      if ($rows === FALSE)
+      {
+        // Use LIMIT with big tables
+        print_debug("Syslog table is too big, using LIMIT for delete entries");
+        $rows = 0;
+        $i    = 1000;
+        while ($i && $rows < $count)
+        {
+          $iter = dbDelete('syslog', $where.' LIMIT 1000000');
+          if ($iter === FALSE) { break; }
+          $rows += $iter;
+          $i--;
+        }
+      }
+      print_debug("Syslog housekeeping: deleted $rows entries");
+      logfile("housekeeping.log", "Syslog: deleted $rows entries older than " . format_unixtime($cutoff));
+    }
+  }
+  else if ($prompt)
+  {
+    print_message("No syslog entries found older than " . format_unixtime($cutoff));
+  }
+} else {
+  print_message("Syslog housekeeping disabled in configuration or incorrectly configured to less than 24h.");
+}
+
+// EOF