Add the Firehose troubleshooting section to the new AWS monitoring do…

…cs (#3750)

* Add troubleshooting section to Firehose guide

* Update docs/en/observability/cloud-monitoring/aws/monitor-aws-firehose-troubleshooting.asciidoc

Co-authored-by: Mike Birnstiehl <[email protected]>

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Co-authored-by: Mike Birnstiehl <[email protected]>
(cherry picked from commit e0038b6)

docs/en/observability/cloud-monitoring/aws/monitor-amazon-intro.asciidoc

@@ -36,4 +36,6 @@ include::monitor-aws-firehose.asciidoc[]
 
 include::monitor-aws-vpc-flow-logs.asciidoc[leveloffset=+2]
 
+include::monitor-aws-firehose-troubleshooting.asciidoc[leveloffset=+2]
+
 include::monitor-aws-esf.asciidoc[]

docs/en/observability/cloud-monitoring/aws/monitor-aws-firehose-troubleshooting.asciidoc

@@ -0,0 +1,25 @@
+[[monitor-aws-firehose-troubleshooting]]
+= Troubleshooting
+
+++++
+<titleabbrev>Troubleshooting</titleabbrev>
+++++
+
+You can use the monitoring tab in the Firehose console to ensure there are incoming records and the delivery success rate is 100%. By default Firehose also logs to a Cloudwatch log group with the name `/aws/kinesisfirehose/<delivery stream name>`, which is automatically created when the delivery stream is created. Two log streams, `DestinationDelivery` and `BackupDelivery`, are created in this log group.
+
+The backup settings in the delivery stream specify how failed delivery requests are handled. For more details on how to configure backups to S3, refer to <<firehose-step-three>>.
+
+[discrete]
+[[aws-firehose-troubleshooting-scaling]]
+== Scaling
+
+Firehose can https://docs.aws.amazon.com/firehose/latest/dev/limits.html[automatically scale] to handle very high throughput. If your Elastic deployment is not properly configured for the data volume coming from Firehose, it could cause a bottleneck, which may lead to increased ingest times or indexing failures.
+
+There are several facets to optimizing the underlying Elasticsearch performance, but Elastic Cloud provides several ready-to-use hardware profiles which can provide a good starting point. Other factors which can impact performance are {ref}/size-your-shards.html[shard sizing], {ref}/tune-for-indexing-speed.html[indexing configuration], and {ref}/index-lifecycle-management.html[index lifecycle management (ILM)].
+
+
+[discrete]
+[[aws-firehose-troubleshooting-support]]
+== Support
+
+If you encounter further problems, please contact https://www.elastic.co/guide/en/starting-with-the-elasticsearch-platform-and-its-solutions/current/get-support-help.html[Elastic support].