ulysses-you commented on issue #26365: [SPARK-29720][CORE] Add linux condition to make ProcfsMetricsGetter more complete URL: https://github.com/apache/spark/pull/26365#issuecomment-549101205 This catch just confirm `echo $PPID ` is support for current os . But not sure whether current os support `porc`. E.g. mac os, `echo $PPID ` can return the right pid. Add Linux condition is just to avoid that other os has the same dir like `/proc/$pid/stat` but in different use case.
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