From 57a148f4fcdaf8194e9431016afa2fd88a3e2234 Mon Sep 17 00:00:00 2001
From: Dave McCowan <dmccowan@cisco.com>
Date: Sat, 20 Jul 2024 22:32:00 -0400
Subject: [PATCH] Fix excessive logging from druid-basic-security

Fixes #16766

Change log level from INFO to DEBUG when processing an empty user map
during polling.  An empty user map is a normal situation for some
authenticators (e.g. LDAP) and polling is frequent (1 minute by
default.)
---
 .../cache/CoordinatorPollingBasicAuthenticatorCacheManager.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/extensions-core/druid-basic-security/src/main/java/org/apache/druid/security/basic/authentication/db/cache/CoordinatorPollingBasicAuthenticatorCacheManager.java b/extensions-core/druid-basic-security/src/main/java/org/apache/druid/security/basic/authentication/db/cache/CoordinatorPollingBasicAuthenticatorCacheManager.java
index 0c7dff247c64..33450a3efccf 100644
--- a/extensions-core/druid-basic-security/src/main/java/org/apache/druid/security/basic/authentication/db/cache/CoordinatorPollingBasicAuthenticatorCacheManager.java
+++ b/extensions-core/druid-basic-security/src/main/java/org/apache/druid/security/basic/authentication/db/cache/CoordinatorPollingBasicAuthenticatorCacheManager.java
@@ -267,7 +267,7 @@ private Map<String, BasicAuthenticatorUser> tryFetchUserMapFromCoordinator(Strin
         writeUserMapToDisk(prefix, userMapBytes);
       }
     } else {
-      LOG.info("Empty cached serialized user map retrieved, authenticator - %s", prefix);
+      LOG.debug("Empty cached serialized user map retrieved, authenticator - %s", prefix);
     }
     return userMap;
   }