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accepted Determine if LUKS/dmcrypt key is present
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comment Determine if LUKS/dmcrypt key is present
Thanks for the response, Hauke. The reality that I've observed is that while it's only a few seconds to unlock the volume, it completely saturates a CPU during this operation which could prove problematic on a database in an OLTP scenario. Thanks for the alternatives, also.
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asked Determine if LUKS/dmcrypt key is present
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revised Rebooting an EC2 Instance
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comment MySQL Slow Writes
I think the query cache is completely separate from the storage engine. It basically serializes all write operations by forcing everything to go through and scan the query cache for queries to invalidate. I've never found a use case for it and it has always caused problems.
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comment MySQL Slow Writes
query_cache_size is enormous, too. Every insert will require up to 6GB of cache to be flushed.
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comment How to automatically kill slow MySQL queries after N seconds?
Why not use pt-kill?
Jun
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comment How to automatically kill slow MySQL queries after N seconds?
pt-kill is very well tested and solves your exact problem. It takes like 10 minutes to figure out the command line parameters and get it running. What more do you want?
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