toru okada wrote:
> I can give you two good reasons.  LiveJournal and Wikipedia.

They are not reasons to stay away from MySQL, just examples of 
misconfigured systems and bad behaving OS'es.

What might be a reason is that the default configuration of MySQL 
offers no data integrity protection in case of power failures. By 
default MySQL uses MyISAM tables which are not even 
transactional. When you use InnoDB tables MySQL will make the 
right calls to the OS to protect your data, but it is very common 
for OS'es to foobar, both Linux and Windows (just go to the Disk 
Manager in Windows and read the warning about write-back caching 
and dataloss).

I can think of many reasons not to trust MySQL to protect my 
data, ranging from sloppy foreign keys to crazy NOT NULL 
implementations, but power outages are not one of them. You just 
have to take the right precautions (you did pull the plug out of 
a running disksystem a few times while doing acceptance tests, 
didn't you?).

Jochem

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