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cmu-db / ottertune

The automatic DBMS configuration tool
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fix a bug in clean_knob_data() #385

Closed yangdsh closed 4 years ago

yangdsh commented 4 years ago

Bug: The matrix returns by this method is the transpose of the correct matrix.

After the fix:

  1. Workload mapping can remove duplicated rows now.
  2. GPR40 can converge quickly now. I tested it on small TPCC (scale=20), and it converges in 10 iterations (5 lhs + 5 gpr), but it cannot be better than the default config.
  3. DNN should be able to converge now.