Bad Fixes

David Alcock looks at a few common “fixes” which end up causing their own problems:

I’m seeing lots of CXPACKETS waits, how do I fix these?

Bad Advice = Set the maximum degree of parallelism to 1, no more CXPACKET waits!

I’m seeing index fragmentation occur quite frequently on some of my indexes, what should I do?

Bad Advice = Set fill factor on the server to 70, no more fragmentation problems!

I’m worried about TempDB contention. What should I do?

Bad Advice = Set the number of files to the number of cores, no more contention issues!

Read the post for better advice.

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