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The following commit(s) were added to refs/heads/master by this push:
     new 8e8da48a1f7 Replace Appender-ref with the more updated AppenderRef 
(#18838)
8e8da48a1f7 is described below

commit 8e8da48a1f7fb09aa9cf377e4099576ac105118d
Author: Virushade <[email protected]>
AuthorDate: Wed Dec 17 23:16:01 2025 +0800

    Replace Appender-ref with the more updated AppenderRef (#18838)
    
    Replace Appender-ref alias references with AppenderRef in log4j configs.
---
 docs/configuration/logging.md                              | 12 ++++++------
 .../extensions-contrib/druid-ranger-security.md            |  2 +-
 examples/conf/druid/auto/_common/log4j2.xml                | 14 +++++++-------
 examples/conf/druid/cluster/_common/log4j2.xml             | 14 +++++++-------
 examples/conf/druid/single-server/large/_common/log4j2.xml | 14 +++++++-------
 .../conf/druid/single-server/medium/_common/log4j2.xml     | 14 +++++++-------
 .../single-server/micro-quickstart/_common/log4j2.xml      | 14 +++++++-------
 .../druid/single-server/nano-quickstart/_common/log4j2.xml | 14 +++++++-------
 examples/conf/druid/single-server/small/_common/log4j2.xml | 14 +++++++-------
 .../conf/druid/single-server/xlarge/_common/log4j2.xml     | 14 +++++++-------
 10 files changed, 63 insertions(+), 63 deletions(-)

diff --git a/docs/configuration/logging.md b/docs/configuration/logging.md
index d740f38b09c..dcfa9a9267b 100644
--- a/docs/configuration/logging.md
+++ b/docs/configuration/logging.md
@@ -73,30 +73,30 @@ The following example log4j2.xml is based upon the micro 
quickstart:
 
     <!-- Set level="debug" to see stack traces for query errors -->
     <Logger name="org.apache.druid.server.QueryResource" level="info" 
additivity="false">
-      <Appender-ref ref="FileAppender"/>
+      <AppenderRef ref="FileAppender"/>
     </Logger>
     <Logger name="org.apache.druid.server.QueryLifecycle" level="info" 
additivity="false">
-      <Appender-ref ref="FileAppender"/>
+      <AppenderRef ref="FileAppender"/>
     </Logger>
 
     <!-- Set level="debug" or "trace" to see more Coordinator details (segment 
balancing, load/drop rules, etc) -->
     <Logger name="org.apache.druid.server.coordinator" level="info" 
additivity="false">
-      <Appender-ref ref="FileAppender"/>
+      <AppenderRef ref="FileAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see low-level details about segments and 
ingestion -->
     <Logger name="org.apache.druid.segment" level="info" additivity="false">
-      <Appender-ref ref="FileAppender"/>
+      <AppenderRef ref="FileAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see more information about extension 
initialization -->
     <Logger name="org.apache.druid.initialization" level="info" 
additivity="false">
-      <Appender-ref ref="FileAppender"/>
+      <AppenderRef ref="FileAppender"/>
     </Logger>
 
     <!-- Quieter logging at startup -->
     <Logger name="com.sun.jersey.guice" level="warn" additivity="false">
-      <Appender-ref ref="FileAppender"/>
+      <AppenderRef ref="FileAppender"/>
     </Logger>
   </Loggers>
 </Configuration>
diff --git a/docs/development/extensions-contrib/druid-ranger-security.md 
b/docs/development/extensions-contrib/druid-ranger-security.md
index 502358f801f..6d321e50aad 100644
--- a/docs/development/extensions-contrib/druid-ranger-security.md
+++ b/docs/development/extensions-contrib/druid-ranger-security.md
@@ -125,6 +125,6 @@ If you face difficulty grasping why access is denied to 
certain elements, and th
 ```xml
 <!-- Set level="debug" to see access requests to Apache Ranger -->
 <Logger name="org.apache.druid.security" level="debug" additivity="false">
-  <Appender-ref ref="Console"/>
+  <AppenderRef ref="Console"/>
 </Logger>
 ```
diff --git a/examples/conf/druid/auto/_common/log4j2.xml 
b/examples/conf/druid/auto/_common/log4j2.xml
index 38c2f77d6fe..7af75820b92 100644
--- a/examples/conf/druid/auto/_common/log4j2.xml
+++ b/examples/conf/druid/auto/_common/log4j2.xml
@@ -68,35 +68,35 @@
 
     <!-- Set level="debug" to see stack traces for query errors -->
     <Logger name="org.apache.druid.server.QueryResource" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
     <Logger name="org.apache.druid.server.QueryLifecycle" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" or "trace" to see more Coordinator details (segment 
balancing, load/drop rules, etc) -->
     <Logger name="org.apache.druid.server.coordinator" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see low-level details about segments and 
ingestion -->
     <Logger name="org.apache.druid.segment" level="info" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see more information about extension 
initialization -->
     <Logger name="org.apache.druid.initialization" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter logging at startup -->
     <Logger name="com.sun.jersey.guice" level="warn" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter KafkaSupervisors -->
     <Logger name="org.apache.kafka.clients.consumer.internals" level="warn" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
   </Loggers>
 </Configuration>
diff --git a/examples/conf/druid/cluster/_common/log4j2.xml 
b/examples/conf/druid/cluster/_common/log4j2.xml
index 38c2f77d6fe..7af75820b92 100644
--- a/examples/conf/druid/cluster/_common/log4j2.xml
+++ b/examples/conf/druid/cluster/_common/log4j2.xml
@@ -68,35 +68,35 @@
 
     <!-- Set level="debug" to see stack traces for query errors -->
     <Logger name="org.apache.druid.server.QueryResource" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
     <Logger name="org.apache.druid.server.QueryLifecycle" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" or "trace" to see more Coordinator details (segment 
balancing, load/drop rules, etc) -->
     <Logger name="org.apache.druid.server.coordinator" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see low-level details about segments and 
ingestion -->
     <Logger name="org.apache.druid.segment" level="info" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see more information about extension 
initialization -->
     <Logger name="org.apache.druid.initialization" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter logging at startup -->
     <Logger name="com.sun.jersey.guice" level="warn" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter KafkaSupervisors -->
     <Logger name="org.apache.kafka.clients.consumer.internals" level="warn" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
   </Loggers>
 </Configuration>
diff --git a/examples/conf/druid/single-server/large/_common/log4j2.xml 
b/examples/conf/druid/single-server/large/_common/log4j2.xml
index 38c2f77d6fe..7af75820b92 100644
--- a/examples/conf/druid/single-server/large/_common/log4j2.xml
+++ b/examples/conf/druid/single-server/large/_common/log4j2.xml
@@ -68,35 +68,35 @@
 
     <!-- Set level="debug" to see stack traces for query errors -->
     <Logger name="org.apache.druid.server.QueryResource" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
     <Logger name="org.apache.druid.server.QueryLifecycle" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" or "trace" to see more Coordinator details (segment 
balancing, load/drop rules, etc) -->
     <Logger name="org.apache.druid.server.coordinator" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see low-level details about segments and 
ingestion -->
     <Logger name="org.apache.druid.segment" level="info" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see more information about extension 
initialization -->
     <Logger name="org.apache.druid.initialization" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter logging at startup -->
     <Logger name="com.sun.jersey.guice" level="warn" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter KafkaSupervisors -->
     <Logger name="org.apache.kafka.clients.consumer.internals" level="warn" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
   </Loggers>
 </Configuration>
diff --git a/examples/conf/druid/single-server/medium/_common/log4j2.xml 
b/examples/conf/druid/single-server/medium/_common/log4j2.xml
index 38c2f77d6fe..7af75820b92 100644
--- a/examples/conf/druid/single-server/medium/_common/log4j2.xml
+++ b/examples/conf/druid/single-server/medium/_common/log4j2.xml
@@ -68,35 +68,35 @@
 
     <!-- Set level="debug" to see stack traces for query errors -->
     <Logger name="org.apache.druid.server.QueryResource" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
     <Logger name="org.apache.druid.server.QueryLifecycle" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" or "trace" to see more Coordinator details (segment 
balancing, load/drop rules, etc) -->
     <Logger name="org.apache.druid.server.coordinator" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see low-level details about segments and 
ingestion -->
     <Logger name="org.apache.druid.segment" level="info" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see more information about extension 
initialization -->
     <Logger name="org.apache.druid.initialization" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter logging at startup -->
     <Logger name="com.sun.jersey.guice" level="warn" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter KafkaSupervisors -->
     <Logger name="org.apache.kafka.clients.consumer.internals" level="warn" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
   </Loggers>
 </Configuration>
diff --git 
a/examples/conf/druid/single-server/micro-quickstart/_common/log4j2.xml 
b/examples/conf/druid/single-server/micro-quickstart/_common/log4j2.xml
index 38c2f77d6fe..7af75820b92 100644
--- a/examples/conf/druid/single-server/micro-quickstart/_common/log4j2.xml
+++ b/examples/conf/druid/single-server/micro-quickstart/_common/log4j2.xml
@@ -68,35 +68,35 @@
 
     <!-- Set level="debug" to see stack traces for query errors -->
     <Logger name="org.apache.druid.server.QueryResource" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
     <Logger name="org.apache.druid.server.QueryLifecycle" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" or "trace" to see more Coordinator details (segment 
balancing, load/drop rules, etc) -->
     <Logger name="org.apache.druid.server.coordinator" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see low-level details about segments and 
ingestion -->
     <Logger name="org.apache.druid.segment" level="info" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see more information about extension 
initialization -->
     <Logger name="org.apache.druid.initialization" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter logging at startup -->
     <Logger name="com.sun.jersey.guice" level="warn" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter KafkaSupervisors -->
     <Logger name="org.apache.kafka.clients.consumer.internals" level="warn" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
   </Loggers>
 </Configuration>
diff --git 
a/examples/conf/druid/single-server/nano-quickstart/_common/log4j2.xml 
b/examples/conf/druid/single-server/nano-quickstart/_common/log4j2.xml
index 38c2f77d6fe..7af75820b92 100644
--- a/examples/conf/druid/single-server/nano-quickstart/_common/log4j2.xml
+++ b/examples/conf/druid/single-server/nano-quickstart/_common/log4j2.xml
@@ -68,35 +68,35 @@
 
     <!-- Set level="debug" to see stack traces for query errors -->
     <Logger name="org.apache.druid.server.QueryResource" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
     <Logger name="org.apache.druid.server.QueryLifecycle" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" or "trace" to see more Coordinator details (segment 
balancing, load/drop rules, etc) -->
     <Logger name="org.apache.druid.server.coordinator" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see low-level details about segments and 
ingestion -->
     <Logger name="org.apache.druid.segment" level="info" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see more information about extension 
initialization -->
     <Logger name="org.apache.druid.initialization" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter logging at startup -->
     <Logger name="com.sun.jersey.guice" level="warn" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter KafkaSupervisors -->
     <Logger name="org.apache.kafka.clients.consumer.internals" level="warn" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
   </Loggers>
 </Configuration>
diff --git a/examples/conf/druid/single-server/small/_common/log4j2.xml 
b/examples/conf/druid/single-server/small/_common/log4j2.xml
index 38c2f77d6fe..7af75820b92 100644
--- a/examples/conf/druid/single-server/small/_common/log4j2.xml
+++ b/examples/conf/druid/single-server/small/_common/log4j2.xml
@@ -68,35 +68,35 @@
 
     <!-- Set level="debug" to see stack traces for query errors -->
     <Logger name="org.apache.druid.server.QueryResource" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
     <Logger name="org.apache.druid.server.QueryLifecycle" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" or "trace" to see more Coordinator details (segment 
balancing, load/drop rules, etc) -->
     <Logger name="org.apache.druid.server.coordinator" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see low-level details about segments and 
ingestion -->
     <Logger name="org.apache.druid.segment" level="info" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see more information about extension 
initialization -->
     <Logger name="org.apache.druid.initialization" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter logging at startup -->
     <Logger name="com.sun.jersey.guice" level="warn" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter KafkaSupervisors -->
     <Logger name="org.apache.kafka.clients.consumer.internals" level="warn" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
   </Loggers>
 </Configuration>
diff --git a/examples/conf/druid/single-server/xlarge/_common/log4j2.xml 
b/examples/conf/druid/single-server/xlarge/_common/log4j2.xml
index 38c2f77d6fe..7af75820b92 100644
--- a/examples/conf/druid/single-server/xlarge/_common/log4j2.xml
+++ b/examples/conf/druid/single-server/xlarge/_common/log4j2.xml
@@ -68,35 +68,35 @@
 
     <!-- Set level="debug" to see stack traces for query errors -->
     <Logger name="org.apache.druid.server.QueryResource" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
     <Logger name="org.apache.druid.server.QueryLifecycle" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" or "trace" to see more Coordinator details (segment 
balancing, load/drop rules, etc) -->
     <Logger name="org.apache.druid.server.coordinator" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see low-level details about segments and 
ingestion -->
     <Logger name="org.apache.druid.segment" level="info" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Set level="debug" to see more information about extension 
initialization -->
     <Logger name="org.apache.druid.initialization" level="info" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter logging at startup -->
     <Logger name="com.sun.jersey.guice" level="warn" additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
 
     <!-- Quieter KafkaSupervisors -->
     <Logger name="org.apache.kafka.clients.consumer.internals" level="warn" 
additivity="false">
-      <Appender-ref ref="RoutingAppender"/>
+      <AppenderRef ref="RoutingAppender"/>
     </Logger>
   </Loggers>
 </Configuration>


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