Details
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Type:
Improvement
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Status: Resolved
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: Impala 2.8.0
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Fix Version/s: Impala 2.9.0
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Component/s: Backend, Perf Investigation
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Labels:None
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Epic Color:ghx-label-2
Description
I'm running a concurrent stress workload with lots of small queries. By changing the impalad vlog level from 1 to 0, my QPS went from ~17qps to around 60qps.
We should consider passing FLAGS_v - 1 into Kudu's vlog level, since we generally assume that VLOG=1 is allowed to be relatively noisy (eg logging thread start/stop, etc) whereas it seems like Impala's policy is that VLOG(1) should be fairly quiet.