From f7fd34ddbca00bf53ea7ad8d46b1c7a08f3e3471 Mon Sep 17 00:00:00 2001
From: Andrew Rumble <github@andrewrumble.com>
Date: Wed, 12 Mar 2025 10:08:59 +0000
Subject: [PATCH] Revert "Revert "Add a metric so that we can know maint is
 prevented""

This reverts commit b3c4e7181b5f6f52178e165f6220c485e8e97caf.

GitOrigin-RevId: d5525bbe5cb1546cdff8e201de04762a8d86e332
---
 services/clsi/app.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/services/clsi/app.js b/services/clsi/app.js
index f8db431f53..8715802a0e 100644
--- a/services/clsi/app.js
+++ b/services/clsi/app.js
@@ -309,6 +309,10 @@ const loadTcpServer = net.createServer(function (socket) {
     } else {
       // Ready will cancel the maint state.
       socket.write(`up, ready, ${Math.max(freeLoadPercentage, 1)}%\n`, 'ASCII')
+      if (freeLoadPercentage <= 0) {
+        // This metric records how often we would have gone into maintenance mode.
+        Metrics.inc('clsi-prevented-maint')
+      }
     }
     socket.end()
   } else {