Remove code for sub-par recommendation related to "innodb_redo_log_capacity" setting

The calculation of the "innodb_log_size_pct" value was kept in.

Resolves #784

Author: ravage84

mysqltuner.pl

@@ -6437,71 +6437,6 @@ sub mysql_innodb {
             }
         }
     }
-    if (   $mycalc{'innodb_log_size_pct'} < 20
-        or $mycalc{'innodb_log_size_pct'} > 30 )
-    {
-        if ( defined $myvar{'innodb_redo_log_capacity'} ) {
-            badprint
-              "Ratio InnoDB redo log capacity / InnoDB Buffer pool size ("
-              . $mycalc{'innodb_log_size_pct'} . "%): "
-              . hr_bytes( $myvar{'innodb_redo_log_capacity'} ) . " / "
-              . hr_bytes( $myvar{'innodb_buffer_pool_size'} )
-              . " should be equal to 25%";
-            push( @adjvars,
-                    "innodb_redo_log_capacity should be (="
-                  . hr_bytes_rnd( $myvar{'innodb_buffer_pool_size'} / 4 )
-                  . ") if possible, so InnoDB Redo log Capacity equals 25% of buffer pool size."
-            );
-            push( @generalrec,
-"Be careful, increasing innodb_redo_log_capacity means higher crash recovery mean time"
-            );
-        }
-        else {
-            badprint "Ratio InnoDB log file size / InnoDB Buffer pool size ("
-              . $mycalc{'innodb_log_size_pct'} . "%): "
-              . hr_bytes( $myvar{'innodb_log_file_size'} ) . " * "
-              . $myvar{'innodb_log_files_in_group'} . " / "
-              . hr_bytes( $myvar{'innodb_buffer_pool_size'} )
-              . " should be equal to 25%";
-            push(
-                @adjvars,
-                "innodb_log_file_size should be (="
-                  . hr_bytes_rnd(
-                    $myvar{'innodb_buffer_pool_size'} /
-                      $myvar{'innodb_log_files_in_group'} / 4
-                  )
-                  . ") if possible, so InnoDB total log file size equals 25% of buffer pool size."
-            );
-            push( @generalrec,
-"Be careful, increasing innodb_log_file_size / innodb_log_files_in_group means higher crash recovery mean time"
-            );
-        }
-        if ( mysql_version_le( 5, 6, 2 ) ) {
-            push( @generalrec,
-"For MySQL 5.6.2 and lower, total innodb_log_file_size should have a ceiling of (4096MB / log files in group) - 1MB."
-            );
-        }
-
-    }
-    else {
-        if ( defined $myvar{'innodb_redo_log_capacity'} ) {
-            goodprint
-              "Ratio InnoDB Redo Log Capacity / InnoDB Buffer pool size: "
-              . hr_bytes( $myvar{'innodb_redo_log_capacity'} ) . "/"
-              . hr_bytes( $myvar{'innodb_buffer_pool_size'} )
-              . " should be equal to 25%";
-        }
-        else {
-            push( @generalrec,
-"Before changing innodb_log_file_size and/or innodb_log_files_in_group read this: https://bit.ly/2TcGgtU"
-            );
-            goodprint "Ratio InnoDB log file size / InnoDB Buffer pool size: "
-              . hr_bytes( $myvar{'innodb_log_file_size'} ) . " * "
-              . $myvar{'innodb_log_files_in_group'} . "/"
-              . hr_bytes( $myvar{'innodb_buffer_pool_size'} )
-              . " should be equal to 25%";
-        }
-    }
 
     # InnoDB Buffer Pool Instances (MySQL 5.6.6+)
     if ( not mysql_version_ge( 10, 4 )