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Displaying posts with tag: dirty pages (reset)

How To Speed Up MySQL Restart (hint: just like before, but this time for real)
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Restating MySQL can be really annoying. You just want to disable the goddamn query cache and it takes forever (read 5-10 minutes) to shutdown, not to mention the warm-up time. Yes, with MySQL 5.7 you can do may changes online, so you won’t necessarily be restarting that often, but you still need to do upgrades, occasionally increase redo log size and, admit it, enable skip-grant-tables. Here’s how you can make this process way less painful.

Why is MySQL so slow to restart?

Before we go any further, let me tell you right away that when I’m speaking about MySQL here, I’m actually speaking about InnoDB, or rather, a MySQL server that’s …

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IOPS, innodb_io_capacity, and the InnoDB Plugin
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In the InnoDB plugin, a new variable was added named innodb_io_capacity, which controls the maximum number of I/O operations per second that InnoDB will perform (which includes the flushing rate of dirty pages as well as the insert buffer (ibuf) batch size).

First off, let me just say this is a welcome addition (an addition provided by the Google Team, fwiw).

However, before this was configurable, the internal …



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Showing entries 1 to 2

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