Temporarily Disabled MySQL Update for Man Pages Post: 303040463

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The Lounge What is on Your Mind? Temporarily Disabled MySQL Update for Man Pages Post 303040463 by Neo on Wednesday 30th of October 2019 12:42:59 AM

10-30-2019

Administrator

Temporarily Disabled MySQL Update for Man Pages

I had some code in place to update the MySQL man page DB 'on the fly' but this database has grown so big over time (now over 7 GB, 7.1 GB to be exact) that the update query was causing the man page rendering to slow down to a crawl.

So, I just disabled updating the table 'on the fly' so the pages will load fast again.

It was not the number of rows causing the problem but something else:

Code:

mysql> select count(*) from `neo_man_page_entry`;
+----------+
| count(*) |
+----------+
|   347938 |
+----------+
1 row in set (0.00 sec)

Which I think is related to indexing in that table and the update query.

So, I'll revisit and fix this at a later time.

For now, I man pages are loading fast again.

Neo

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ndb_drop_table

NDB_DROP_TABLE(1)					       MySQL Database System						 NDB_DROP_TABLE(1)

NAME

       ndb_drop_table - drop an NDB table

SYNOPSIS

       ndb_drop_table options

DESCRIPTION

       ndb_drop_table drops the specified NDB table. (If you try to use this on a table created with a storage engine other than NDB, the attempt
       fails with the error 723: No such table exists.) This operation is extremely fast; in some cases, it can be an order of magnitude faster
       than using a MySQL DROP TABLE statement on an NDB table.
	       Usage

	   ndb_drop_table -c connect_string tbl_name -d db_name

       The following table includes options that are specific to ndb_drop_table. Additional descriptions follow the table. For options common to
       most MySQL Cluster programs (including ndb_drop_table), see Options Common to MySQL Cluster Programs(1).

       Table 17.19. ndb_drop_table Options and Variables: MySQL Cluster NDB 7.2
       +--------------------------+-----------------------------------+-------------------------------------+
       |Format			  | Description 		      | Added / Removed 		    |
       +--------------------------+-----------------------------------+-------------------------------------+
       |			  | Name of the database in which the | 				    |
       |       --database=dbname, | table is found		      |        All MySQL 5.5 based releases |
       |			  |				      | 				    |
       |       -d		  |				      | 				    |
       +--------------------------+-----------------------------------+-------------------------------------+

COPYRIGHT

       Copyright (C) 1997, 2014, Oracle and/or its affiliates. All rights reserved.

       This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as
       published by the Free Software Foundation; version 2 of the License.

       This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation,
       Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.

SEE ALSO

       For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online
       at http://dev.mysql.com/doc/.

AUTHOR

       Oracle Corporation (http://dev.mysql.com/).

MySQL 5.5							    01/30/2014							 NDB_DROP_TABLE(1)