Comments on: Tip : Backing up a large MySQL Database (errno: 24)

By: Jamie Le Souef

Jamie Le Souef — Tue, 04 May 2010 10:28:11 +0000

Awesome comment Phil! Thanks for that. I’ll be sure to give it a try

By: Phil

Phil — Tue, 20 Apr 2010 18:33:55 +0000

Hello,
I ran into this problem too and setting lock-tables to false is one way but it does not explain what is really causing the problem.

This particular error mostly occurs when it reaches the open file limit set by the system and by the mysql instance.

So if you want to fix this issue you must increase the system limit in /etc/security/limits.conf & in your mysql my.cnf with the variable
open-files-limit = 65536

65536 is the actual maximum number you can use so you can lower this number to fit your needs. Usually (if I’m correct) you should set this to a number that is a bit more then twice the number of tables in the db that is causing the problem.

Hope this helps

By: mysqldump: Got error: 29: File ‘./dbname/tablename.MYD’ not found (Errcode: 24) when using LOCK TABLES « My Notes

Thu, 08 Apr 2010 03:10:21 +0000

[...] source : http://jamielesouef.com/linux/tip-backing-up-a-large-mysql-database-errno-24/ [...]

By: Jamie Le Souef

Jamie Le Souef — Wed, 15 Apr 2009 07:33:02 +0000

Hi Manoj,

I’m not sure how to fix that one I’m sorry. I’ll keep an eye out for it tho!

By: Manoj

Manoj — Mon, 13 Apr 2009 11:53:54 +0000

Hi,
thank you for putting light on this issue.
could you please tell me how to overcome this issue during select .
I am getting this error frequently during select .
I am using MySql 5.2 with MyISAM

By: Jamie Le Souef

Jamie Le Souef — Wed, 25 Mar 2009 06:27:13 +0000

Glad it helped Jorge.

By: Jorge

Jorge — Tue, 24 Mar 2009 11:42:42 +0000

Thank you very much!!!!

I kept finding the tip of changing the open-files-limit parameter but that didn’t work with me.

With this option you saved my database :)

By: Jamie Le Souef

Jamie Le Souef — Tue, 04 Nov 2008 23:56:30 +0000

@Adam - I'm glad the post helped you out mate. It was a life saver to find that solution!

By: Adam

Adam — Tue, 04 Nov 2008 17:06:01 +0000

Thanks, That was the exact issue I was facing also. I’m now able to back up my mySQL database of ~2000 tables.

By: Jamie Le Souef

Jamie Le Souef — Fri, 19 Sep 2008 04:26:00 +0000

For some reason I can not get this post to include the > symbal.. it’s just wants to write the html & gt; (minus the space between the & and g)

So it’s supposed to be a >