diff --git a/docs/content/alerts.md b/docs/content/alerts.md
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@@ -0,0 +1,17 @@
+---
+layout: doc_page
+---
+# Druid Alerts
+
+Druid generates alerts on getting into unexpected situations.
+
+Alerts are emitted as JSON objects to a runtime log file or over HTTP (to a service such as Apache Kafka). Alert emission is disabled by default.
+
+All Druid alerts share a common set of fields:
+
+* `timestamp` - the time the alert was created
+* `service` - the service name that emitted the alert
+* `host` - the host name that emitted the alert
+* `severity` - severity of the alert e.g. anomaly, component-failure, service-failure etc.
+* `description` - a description of the alert
+* `data` - if there was an exception then a JSON object with fields `exceptionType`, `exceptionMessage` and `exceptionStackTrace`
diff --git a/docs/content/toc.textile b/docs/content/toc.textile
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@@ -52,6 +52,7 @@ h2. Operations
 * "Including Extensions":./Including-Extensions.html
 * "Data Retention":./Rule-Configuration.html
 * "Metrics and Monitoring":./Metrics.html
+* "Alerts":./alerts.html
 * "Updating the Cluster":./Rolling-Updates.html
 * "Different Hadoop Versions":./Other-Hadoop.html
 * "Performance FAQ":./Performance-FAQ.html