Github user arunmahadevan commented on a diff in the pull request:
https://github.com/apache/storm/pull/2457#discussion_r157072382
--- Diff: docs/Eventlogging.md ---
@@ -94,3 +95,29 @@ public interface IEventLogger {
void close();
}
```
+
+The default implementation for this is a FileBasedEventLogger which logs
the events to an events.log file (
`logs/workers-artifacts/<topology-id>/<worker-port>/events.log`).
+Alternate implementations of the `IEventLogger` interface can be added to
extend the event logging functionality (say build a search index or log the
events in a database etc)
+
+To register event logger to your topology, add to your topology's
configuration like:
+
+```java
+conf.registerEventLogger(org.apache.storm.metric.FileBasedEventLogger.class);
--- End diff --
nit: remove the metric package name reference
---
