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I did and do; when performance at the database level isn't right, you need to look into OS stats, I/O stats, disk stats (the SAN is an area ripe for unexpected
by barrkel 7y ago
I did and do; when performance at the database level isn't right, you need to look into OS stats, I/O stats, disk stats (the SAN is an area ripe for unexpected contention, RAID5/6 act like a single spindle and inhibit random access in ways that RAID1 or RAID10 don't, stripe length in RAID5/6 bloats the size of small writes, etc.), but I had to stop somewhere :)
- yakshaving_jgt 7y ago> but I had to stop somewhere Why? You seem unsatisfied with any of the previous layers of abstraction, so where does it end? When can I truly call myself a user of a database?
- ukj 7y agoWhen you don't have to fix it when it stops servicing requests, or worry about scaling workloads. When you treat it as a black-to-grey box, not a grey-to-white box.
- bryanrasmussen 7y agoSo I'm confused - how many years did you have to study before you felt confident enough in your grasp of all the underlying concepts to write your first "Hello World"?
- barrkel 7y agoHello World doesn't push much to the limits.