Add index on severity, finish_time to speed up welcome page display #250
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Change-Id: I2026700927598c58c9bd42ffefef36916b53fc62
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Merged. Thanks @ashangit |
skakker
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Dec 14, 2017
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Add an index on yarn_app_result table so the dashboard is display faster.
On our local deployment of dr-elephant with 2 millions of rows in this table(using mariadb) the below request was taking more than 30s:
select count(*) from yarn_app_result t0 where t0.finish_time > 1496070064837 and t0.severity = 4With this index it now takes less than 1s.