Unintentional Googlewhack Leads to MySQL Bug Report
Mar 26, 2008 / By Sheeri Cabral
While doing a standard audit for a new client, I recommended a few changes to get better performance. Because I had several changes, I used the documentation at
and found that
innodb_flush_log_at_trx_commit is a dynamic variable. I was surprised, because most operations dealing with file sizes and operations are not dynamic. But the client proceeded with:
set global innodb_flush_log_at_trx_commit = 2;
ERROR 1193 (HY000): Unknown system variable 'innodb_flush_log_at_trx_commit'
So I searched for others who may have had the same error, and ended up getting an unintentional googlewhack. Well, it’s not a real Googlewhack, because it has more than 2 words and I used quotes to surround it — but I was pretty surprised that there were not a lot more people like me who trusted the manual. Granted, it’s “intuitive” that the variable is one that would need a restart….but because I was looking up others, I just looked up all of them, and thus fell into the trap.
The search I did was “Unknown system variable innodb_flush_log_at_trx_commit”
And the bug I filed is http://bugs.mysql.com/bug.php?id=35575.
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