Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/2105#discussion_r68036496
--- Diff:
flink-core/src/main/java/org/apache/flink/metrics/MetricRegistry.java ---
@@ -170,8 +170,12 @@ public ScopeFormats getScopeFormats() {
* @param group the group that contains the metric
*/
public void register(Metric metric, String metricName,
AbstractMetricGroup group) {
- if (reporter != null) {
- reporter.notifyOfAddedMetric(metric, metricName, group);
+ try {
+ if (reporter != null) {
+ reporter.notifyOfAddedMetric(metric,
metricName, group);
+ }
+ } catch (Exception e) {
+ LOG.error("Error while registering metric.", e);
--- End diff --
this is simply a fail-safe to ensure that no exceptions are thrown.
Generally a reporter shouldn't throw an Exception in these methods, but I'd
rather be safe then sorry.
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