Github user sohami commented on a diff in the pull request:
https://github.com/apache/drill/pull/1203#discussion_r181161557
--- Diff:
common/src/main/java/org/apache/drill/exec/metrics/DrillMetrics.java ---
@@ -60,6 +61,7 @@ private static void registerSystemMetrics() {
REGISTRY.registerAll(new
BufferPoolMetricSet(ManagementFactory.getPlatformMBeanServer()));
REGISTRY.registerAll(new MemoryUsageGaugeSet());
REGISTRY.registerAll(new ThreadStatesGaugeSet());
+ REGISTRY.registerAll(new
CpuGaugeSet(ManagementFactory.getOperatingSystemMXBean()));
--- End diff --
please replace `registerAll` with `register`. See comment above in
`CpuGaugeSet`
---