in_tail: add metrics to know file count monitored by TailWatcher

Watson1978 · Watson1978 · commit 98b3da54a4fc · 2025-05-22T12:18:56.000+09:00
Signed-off-by: Shizuo Fujita &lt;fujita@clear-code.com&gt;
diff --git a/lib/fluent/plugin/in_tail.rb b/lib/fluent/plugin/in_tail.rb
@@ -814,6 +814,7 @@ def statistics
           'closed_file_count' => @metrics.closed.get,
           'rotated_file_count' => @metrics.rotated.get,
           'throttled_log_count' => @metrics.throttled.get,
+          'tracking_file_count' => @tails.size,
         })
       }
       stats

Original file line number	Diff line number	Diff line change
`@@ -814,6 +814,7 @@ def statistics`
`814`	`814`	`'closed_file_count' => @metrics.closed.get,`
`815`	`815`	`'rotated_file_count' => @metrics.rotated.get,`
`816`	`816`	`'throttled_log_count' => @metrics.throttled.get,`
	`817`	`+ 'tracking_file_count' => @tails.size,`
`817`	`818`	`})`
`818`	`819`	`}`
`819`	`820`	`stats`