Don't optimize the tables when the maximum size is lower than zero

diff --git a/include/cron.php b/include/cron.php
index c60284b738a7d819f4c6f6e4601b7517a4032eb4..a2482ff300d56c4b9e07f16a504e621e221ad08b 100644 (file)
--- a/include/cron.php
+++ b/include/cron.php
@@ -335,35 +335,37 @@ function cron_clear_cache(&$a) {
        if ($max_tablesize == 0)
                $max_tablesize = 100 * 1000000; // Default are 100 MB
 
-       // Minimum fragmentation level in percent
-       $fragmentation_level = intval(get_config('system','optimize_fragmentation')) / 100;
-       if ($fragmentation_level == 0)
-               $fragmentation_level = 0.3; // Default value is 30%
+       if ($max_tablesize > 0) {
+               // Minimum fragmentation level in percent
+               $fragmentation_level = intval(get_config('system','optimize_fragmentation')) / 100;
+               if ($fragmentation_level == 0)
+                       $fragmentation_level = 0.3; // Default value is 30%
 
-       // Optimize some tables that need to be optimized
-       $r = q("SHOW TABLE STATUS");
-       foreach($r as $table) {
+               // Optimize some tables that need to be optimized
+               $r = q("SHOW TABLE STATUS");
+               foreach($r as $table) {
 
-               // Don't optimize tables that are too large
-               if ($table["Data_length"] > $max_tablesize)
-                       continue;
+                       // Don't optimize tables that are too large
+                       if ($table["Data_length"] > $max_tablesize)
+                               continue;
 
-               // Don't optimize empty tables
-               if ($table["Data_length"] == 0)
-                       continue;
+                       // Don't optimize empty tables
+                       if ($table["Data_length"] == 0)
+                               continue;
 
-               // Calculate fragmentation
-               $fragmentation = $table["Data_free"] / ($table["Data_length"] + $table["Index_length"]);
+                       // Calculate fragmentation
+                       $fragmentation = $table["Data_free"] / ($table["Data_length"] + $table["Index_length"]);
 
-               logger("Table ".$table["Name"]." - Fragmentation level: ".round($fragmentation * 100, 2), LOGGER_DEBUG);
+                       logger("Table ".$table["Name"]." - Fragmentation level: ".round($fragmentation * 100, 2), LOGGER_DEBUG);
 
-               // Don't optimize tables that needn't to be optimized
-               if ($fragmentation < $fragmentation_level)
-                       continue;
+                       // Don't optimize tables that needn't to be optimized
+                       if ($fragmentation < $fragmentation_level)
+                               continue;
 
-               // So optimize it
-               logger("Optimize Table ".$table["Name"], LOGGER_DEBUG);
-               q("OPTIMIZE TABLE `%s`", dbesc($table["Name"]));
+                       // So optimize it
+                       logger("Optimize Table ".$table["Name"], LOGGER_DEBUG);
+                       q("OPTIMIZE TABLE `%s`", dbesc($table["Name"]));
+               }
        }
 
        set_config('system','cache_last_cleared', time());