Jason Fehr created IMPALA-14709:
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             Summary: Add Jitter to Workload Management Startup
                 Key: IMPALA-14709
                 URL: https://issues.apache.org/jira/browse/IMPALA-14709
             Project: IMPALA
          Issue Type: Story
            Reporter: Jason Fehr


When the workload management worker starts up, it does not sleep for any amount 
of time.  This leads to multiple coordinators running workload management 
processing at similar times resulting in lock contention on the 
sys.impala_query_log table.

Between workload management state transitioning from starting to started, add a 
random sleep to offset workload management processing for coordinators started 
at the same time.
https://github.com/apache/impala/blob/3dac0135fba0717dd977043e7ecc6b52bf55189f/be/src/service/workload-management-worker.cc#L637-L645



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