vrozov commented on a change in pull request #1437: DRILL-6702: Disable CPU
Reporting for non-HotSpot JDKs
URL: https://github.com/apache/drill/pull/1437#discussion_r212423804
##########
File path: common/src/main/java/org/apache/drill/exec/metrics/CpuGaugeSet.java
##########
@@ -32,13 +32,20 @@
*/
@SuppressWarnings("restriction")
public class CpuGaugeSet implements MetricSet {
+ private static final org.slf4j.Logger logger =
org.slf4j.LoggerFactory.getLogger(CpuGaugeSet.class);
- private OperatingSystemMXBean osMXBean;
- private RuntimeMXBean rtMXBean;
+ private final OperatingSystemMXBean osMXBean;
+ private final RuntimeMXBean rtMXBean;
public CpuGaugeSet() {
- this.osMXBean = (OperatingSystemMXBean)
ManagementFactory.getOperatingSystemMXBean();
this.rtMXBean = ManagementFactory.getRuntimeMXBean();
+ //DRILL-6702: Instead of worrying about compiling with IBM JDK, for now,
we shall provide no CPU metrics for non-HotSpot JVMs
+ if (System.getProperty("java.vm.name").contains("HotSpot")) {
Review comment:
@kkhatua The reverse of the condition is also problematic, it is possible
that `"java.vm.name"` does not contain HotSpot while cast to
`OperatingSystemMXBean` may still succeed.
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