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Incorrect key file for table './xxx/xxxt.MYI'; try to repair it
Posted by: Pat Mustard
Date: February 10, 2009 05:05AM

I've used myisamchk to repair the table several times, seamingly without problems, but the error keeps coming back:

myisamchk --force --sort_buffer_size=64M --key_buffer_size=16M --read_buffer_size=8M --write_buffer_size=8M xxx
Checking MyISAM file: xxx
Data records: 1890046 Deleted blocks: 0
myisamchk: warning: Table is marked as crashed
- check file-size
- check record delete-chain
- check key delete-chain
- check index reference
- check data record references index: 1
myisamchk: error: Found 1890041 keys of 1890046
- recovering (with sort) MyISAM-table 'xxx'
Data records: 1890046
- Fixing index 1
- Fixing index 2
- Fixing index 3
- Fixing index 4
- Fixing index 5

I've also tried myisamchk using -r -q

I'm aware that there are medium and extended checks, but these seem geared more towards the data itself, whereas my problem appears to be with the index/keys. I'm cautious about taking my site down for an extended check too - it's a busy forum, and even the quick check takes 15 minutes.

Any thoughts please? Would dropping the keys then re-adding them help?

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Incorrect key file for table './xxx/xxxt.MYI'; try to repair it
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