From 0fdcda815ec7ea292e3e318d5cd18766c604dddc Mon Sep 17 00:00:00 2001
From: Jean-Marie Renouard <jmrenouard@gmail.com>
Date: Sat, 12 Mar 2022 18:46:42 +0100
Subject: [PATCH] False impression on key buffer usage #573

---
 mysqltuner.pl | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mysqltuner.pl b/mysqltuner.pl
index 7ddb2ef..ab24b2b 100755
--- a/mysqltuner.pl
+++ b/mysqltuner.pl
@@ -3585,6 +3585,10 @@ sub mysql_myisam {
     subheaderprint "MyISAM Metrics";
     if ( mysql_version_ge(8) and mysql_version_le(10) ) {
         infoprint "MyISAM Metrics are disabled on last MySQL versions.";
+        if ( $myvar{'key_buffer_size'} > 0) {
+            push( @adjvars, "key_buffer_size=0" );
+            push( @generalrec, "Buffer Key MyISAM set to 0, no MyISAM table detected" );
+        }
         return;
     }
     my $nb_myisam_tables=select_one(