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/production/apps/closure_analyzer/longest_stuckness{string executor_type, int executor_id} : long = ...
Longest stuck (wasted) time in any closure in this executor in the previous 2 minutes. This varz is updated only every 2 minutes. This will most likely show zero for closures taking less than scanning interval time to execute, and when there are no thread starvation that would block them. It is still possible that even for short closures, this will show high value, if there is not enough CPU time to execute them.
defined at production/apps/cputracking/closure_analyzer.cc:103 with annotations: UNIT=nanoseconds VARZ_NAME=closure-analyzer-longest-wall-time-stuckness-wall-time-ns
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