fix merge error

Author: mburke5678

logging/cluster-logging-external.adoc

@@ -29,7 +29,6 @@ You cannot use the ConfigMap methods and the Log Forwarding API in the same clus
 // modules required to cover the user story. You can also include other
 // assemblies.
 
-
 include::modules/cluster-logging-collector-log-forwarding-about.adoc[leveloffset=+1]
 include::modules/cluster-logging-collector-log-forward-es.adoc[leveloffset=+2]
 include::modules/cluster-logging-collector-log-forward-fluentd.adoc[leveloffset=+2]

modules/cluster-logging-collector-log-forwarding-about.adoc

@@ -142,3 +142,9 @@ spec:
 ** The `outputRefs` is the name of the output to use.
 ** Optional: A label to add to the logs.
 
+[discrete]
+[id="cluster-logging-external-fluentd"]
+== Fluentd log handling when the external log aggregator is unavailable
+
+If your external logging aggregator becomes unavailable and cannot receive logs, Fluentd continues to collect logs and stores them in a buffer. When the log aggregator becomes available, log forwarding resumes, including the buffered logs. If the buffer fills completely, Fluentd stops collecting logs. {product-title} rotates the logs and deletes them. You cannot adjust the buffer size or add a persistent volume claim (PVC) to the Fluentd daemon set or pods.
+