HuangZhenQiu commented on code in PR #26492:
URL: https://github.com/apache/flink/pull/26492#discussion_r2058608705
##########
flink-runtime/src/main/java/org/apache/flink/runtime/metrics/util/MetricUtils.java:
##########
@@ -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:
The target java version of current main branch of Flink is java 17. The
class com.sun.management.UnixOperatingSystemMXBean exist since all Java 1.5.
https://docs.oracle.com/en/java/javase/11/docs/api/jdk.management/com/sun/management/UnixOperatingSystemMXBean.html.
But whether UnixOperatingSystemMXBean can be returned, depends on underneath
OS. It user run the flink code in window locally, I guess
UnixOperatingSystemMXBean will not be created. Thus, we throw exception in this
case. In the end, the error log will print the exception stack.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
