Github user HeartSaVioR commented on a diff in the pull request:
https://github.com/apache/storm/pull/1881#discussion_r96560105
--- Diff:
storm-core/src/jvm/org/apache/storm/metric/ClusterMetricsConsumerExecutor.java
---
@@ -40,31 +39,49 @@ public ClusterMetricsConsumerExecutor(String
consumerClassName, Object registrat
public void prepare() {
try {
metricsConsumer =
(IClusterMetricsConsumer)Class.forName(consumerClassName).newInstance();
+ metricsConsumer.prepare(registrationArgument);
} catch (Exception e) {
- throw new RuntimeException("Could not instantiate a class
listed in config under section " +
- Config.STORM_CLUSTER_METRICS_CONSUMER_REGISTER + "
with fully qualified name " + consumerClassName, e);
- }
+ LOG.error("Could not instantiate or prepare Cluster Metrics
Consumer with fully qualified name " +
+ consumerClassName, e);
- metricsConsumer.prepare(registrationArgument);
+ if (metricsConsumer != null) {
--- End diff --
This is to clean up broken metrics consumer instance, so only needed for
error case.
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