It seems doing any partition maintenance in combination with some concurrent workload will fail with many different errors in 5.1. For more or less the same underlying lack of locking, I've filed a few bugs.
To cause a myisam table corruption or server crash (or innodb assert) all you need is 1 thread inserting, and 1 thread altering/optimizing partitions: Of course, the more threads the easier the problems will happen..
Bug #28477
Bug #28487
Bug #28488
Bug #28489
Bug #28490
Sunday, May 20, 2007
partition maintenance?
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