metricbeat beat stats metricset fetch failure_store metric

Author: leehinman

changelog/fragments/1773425590-add-failure_store-metric-to-beats-stats-metricset.yaml

@@ -0,0 +1,45 @@
+# REQUIRED
+# Kind can be one of:
+# - breaking-change: a change to previously-documented behavior
+# - deprecation: functionality that is being removed in a later release
+# - bug-fix: fixes a problem in a previous version
+# - enhancement: extends functionality but does not break or fix existing behavior
+# - feature: new functionality
+# - known-issue: problems that we are aware of in a given version
+# - security: impacts on the security of a product or a user’s deployment.
+# - upgrade: important information for someone upgrading from a prior version
+# - other: does not fit into any of the other categories
+kind: feature
+
+# REQUIRED for all kinds
+# Change summary; a 80ish characters long description of the change.
+summary: Add failure_store metric to the stats metricset in the beat module.
+
+# REQUIRED for breaking-change, deprecation, known-issue
+# Long description; in case the summary is not enough to describe the change
+# this field accommodate a description without length limits.
+# description:
+
+# REQUIRED for breaking-change, deprecation, known-issue
+# impact:
+
+# REQUIRED for breaking-change, deprecation, known-issue
+# action:
+
+# REQUIRED for all kinds
+# Affected component; usually one of "elastic-agent", "fleet-server", "filebeat", "metricbeat", "auditbeat", "all", etc.
+component: metricbeat
+
+# AUTOMATED
+# OPTIONAL to manually add other PR URLs
+# PR URL: A link the PR that added the changeset.
+# If not present is automatically filled by the tooling finding the PR where this changelog fragment has been added.
+# NOTE: the tooling supports backports, so it's able to fill the original PR number instead of the backport PR number.
+# Please provide it if you are adding a fragment for a different PR.
+pr: https://github.com/elastic/beats/pull/49452
+
+# AUTOMATED
+# OPTIONAL to manually add other issue URLs
+# Issue URL; optional; the GitHub issue related to this changeset (either closes or is part of).
+# If not present is automatically filled by the tooling with the issue linked to the PR number.
+# issue: https://github.com/owner/repo/1234

docs/reference/metricbeat/exported-fields-beat.md

@@ -1074,6 +1074,12 @@ Beat module
     alias to: beat.stats.libbeat.output.events.failed
 
 
+**`beats_stats.metrics.libbeat.output.events.failure_store`**
+:   type: alias
+
+    alias to: beat.stats.libbeat.output.events.failure_store
+
+
 **`beats_stats.metrics.libbeat.output.events.toomany`**
 :   type: alias
 
@@ -2522,6 +2528,12 @@ Event counters
     type: long
 
 
+**`beat.stats.libbeat.output.events.failure_store`**
+:   Number of events written to the failure store
+
+    type: long
+
+
 **`beat.stats.libbeat.output.events.toomany`**
 :   Number of too many events
 

metricbeat/module/beat/_meta/fields.yml

@@ -717,6 +717,9 @@
                         - name: failed
                           type: alias
                           path: beat.stats.libbeat.output.events.failed
+                        - name: failure_store
+                          type: alias
+                          path: beat.stats.libbeat.output.events.failure_store
                         - name: toomany
                           type: alias
                           path: beat.stats.libbeat.output.events.toomany

metricbeat/module/beat/fields.go

@@ -723,6 +723,10 @@
                   type: long
                   description: >
                     Number of events failed
+                - name: failure_store
+                  type: long
+                  description: >
+                    Number of events written to the failure store
                 - name: toomany
                   type: long
                   description: >

metricbeat/module/beat/stats/_meta/fields.yml

@@ -55,6 +55,7 @@
         "dropped": 0,
         "duplicates": 0,
         "failed": 0,
+        "failure_store": 0,
         "toomany": 0,
         "total": 0
       },