Databasename/Tablename is marked as crashed and should be repaired

2011-10-14 Thread James
Hello,

I have the following error on my mysql server log and managed to repaired
the broken table. However, it keeps occurring by time to time. I am using
MyISAM storage engine to all database and having some locking table which I
know / aware about the disadvantage of MyISAM.

'./Databasename/Tablename' is marked as crashed and should be repaired

Are there any ways to solved permanently? Any advise would be appreciated.

Thank you.

James


Re: Databasename/Tablename is marked as crashed and should be repaired

2011-10-14 Thread Mark Goodge

On 14/10/2011 08:07, James wrote:

Hello,

I have the following error on my mysql server log and managed to repaired
the broken table. However, it keeps occurring by time to time. I am using
MyISAM storage engine to all database and having some locking table which I
know / aware about the disadvantage of MyISAM.

'./Databasename/Tablename' is marked as crashed and should be repaired

Are there any ways to solved permanently? Any advise would be appreciated.


If it's happening repeatedly, and the MySQL server itself is running 
without any problems (ie, it isn't crashing and restarting) then you may 
have problems with the hardware - with the disk itself.


Mark
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Re: Databasename/Tablename is marked as crashed and should be repaired

2011-10-14 Thread Suresh Kuna
Hi,

The permanent solution is to convert the table into Innodb engine.

Thanks
Suresh Kuna

On Fri, Oct 14, 2011 at 1:00 PM, Mark Goodge m...@good-stuff.co.uk wrote:

 On 14/10/2011 08:07, James wrote:

 Hello,

 I have the following error on my mysql server log and managed to repaired
 the broken table. However, it keeps occurring by time to time. I am using
 MyISAM storage engine to all database and having some locking table which
 I
 know / aware about the disadvantage of MyISAM.

 './Databasename/Tablename' is marked as crashed and should be repaired

 Are there any ways to solved permanently? Any advise would be appreciated.


 If it's happening repeatedly, and the MySQL server itself is running
 without any problems (ie, it isn't crashing and restarting) then you may
 have problems with the hardware - with the disk itself.

 Mark
 --
  Sent from my Babbage Difference Engine
  http://mark.goodge.co.uk
  http://www.ratemysupermarket.**com http://www.ratemysupermarket.com

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Thanks
Suresh Kuna
MySQL DBA


Re: Databasename/Tablename is marked as crashed and should be repaired

2011-10-14 Thread Johan De Meersman
- Original Message -
 From: Suresh Kuna sureshkumar...@gmail.com
 
 The permanent solution is to convert the table into Innodb engine.

Wonderful advice, especially without even bothering to try and find out what is 
actually causing the corruption. Well done, that man. You *are* aware that not 
all tables can be converted to InnoDB? Full text indices come to mind, for one.


One way of establishing wether or not the table is on a bad block (it probably 
isn't, or you'd see something in the syslog) would be to ensure it goes on a 
completely different set of blocks: create an identical table with a different 
name, copy the contents with insert as select, and then swap out the tables 
using alter table rename. The old table will remain on the blocks it is, and 
the new one will have all the content on fresh blocks.

Note that a repair table is also very likely to already have copied the entire 
table using roughly the same process, so that's probably not it; but it may be 
worth a shot anyway.



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