davidradl commented on code in PR #26492:
URL: https://github.com/apache/flink/pull/26492#discussion_r2056451530
##########
flink-runtime/src/main/java/org/apache/flink/runtime/metrics/util/MetricUtils.java:
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@@ -338,6 +339,30 @@ static void instantiateMetaspaceMemoryMetrics(final
MetricGroup parentMetricGrou
}
}
+ static void instantiateFileDescriptorMetrics(MetricGroup metrics) {
+ try {
+ final com.sun.management.OperatingSystemMXBean mxBean =
+ (com.sun.management.OperatingSystemMXBean)
+ ManagementFactory.getOperatingSystemMXBean();
+
+ if (mxBean instanceof
com.sun.management.UnixOperatingSystemMXBean) {
Review Comment:
If the class is not found then wouldn't `instanceof` fail ?
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