Database error - site crashed!!! db_cache is marked as crashed and should be repair

[batteryman]

What causes the zen_db_cache file to get messed up? I just had the same problem, and the zen_db_cache had "in use" across the table. At first I tried restarting mysql service and then I tried restarting Apache thinking that something was tiing up my server and by restarting would break it connection, didnt work. So it must have been internal. So then I went to my database and tried backing up but it couldnt do it. Just got the header info.

After that I just went to the zen_db_cache and emptied it. Fixed it right away. Just don't know what caused it to go weird.

Can you explain?

[makenoiz]

Running repair table db_cache; at SQL command worked for me~!!!

Thanks!