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From:Tim Murtaugh Date:November 8 2004 5:20pm
Subject:Fast method needed to determine if a table is corrupt
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Hi,
 
I'm using MySQL server version 4.0.15a in an embedded envirionment (as a
standalone server, I'm not using the embedded server library). I have 128 MB
of memory and disk space is tight. I'm using MyISAM tables. 
 
If my system loses power, some tables are left in a corrupt state. As stated
in the MySQL documentation, I think the data tables are OK, its just that
the tables were not closed properly and are considered corrupt by MySQL. 
 
I need a FAST way to determine if a table is corrupt. I've tried myisamcheck
--fast and --check-only-changed options, and increased the buffer sizes (-O
key_buffer_size and -O sort_buffer_size), as mentioned in the documentation.
The fastest time I can achieve is 6:55. 
 
I've also tried "CHECK TABLE tablename FAST QUICK" on a table I know is
marked as corrupt, and the fastest time I can achieve is 6:58. 
 
I need to detemine if a table is corrupt within a few SECONDS, not minutes.
How can I do this? 
 
The documentation says there is a flag in myisam tables that indicates when
a table is corrupt. Is there a way I can quickly check this flag? 
 
I want to make this an automated check that I can write in C.
 
Are there third-party tools available to help me? 
 
Thanks, 
Tim
 

Thread
Fast method needed to determine if a table is corruptTim Murtaugh8 Nov
  • Re: Fast method needed to determine if a table is corruptDan Nelson8 Nov
    • RE: Fast method needed to determine if a table is corruptMark Steele10 Nov
  • Re: Fast method needed to determine if a table is corruptgerald_clark8 Nov
  • Re: Fast method needed to determine if a table is corruptGleb Paharenko9 Nov