Github user mmiklavc commented on the issue:
https://github.com/apache/metron/pull/665
Hi @ottobackwards I actually took this advice and have a commit coming your
way. I extracted functionality into a PerformanceLogger class that allows you
to specify a percentage probability for logging the timing in the global
config. A value of 1 logs roughly 1% of statements, 100 will log all
statements. I could use some feedback on the approach I took for instantiating
the logger - I used a local member variable instead of a static variable. The
reason being that the logger maintains a Map<String, Long> of marked times.
Since multiple executors may exist within a single worker JVM, it seemed likely
that they might trample one another.
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