HBASE-26802 Backport the log4j2 changes to branch-2

bin/hbase

@@ -305,10 +305,13 @@ else
   # make it easier to check for shaded/not later on.
   shaded_jar=""
 fi
+# here we will add slf4j-api, commons-logging, jul-to-slf4j, jcl-over-slf4j
+# to classpath, as they are all logging bridges. Only exclude log4j* so we
+# will not actually log anything out. Add it later if necessary
 for f in "${HBASE_HOME}"/lib/client-facing-thirdparty/*.jar; do
   if [[ ! "${f}" =~ ^.*/htrace-core-3.*\.jar$ ]] && \
-     [ "${f}" != "htrace-core.jar$" ] && \
-     [[ ! "${f}" =~ ^.*/slf4j-log4j.*$ ]]; then
+     [[ "${f}" != "htrace-core.jar$" ]] && \
+     [[ ! "${f}" =~ ^.*/log4j.*$ ]]; then
     CLASSPATH="${CLASSPATH}:${f}"
   fi
 done
@@ -671,7 +674,7 @@ elif [ "$COMMAND" = "mapredcp" ] ; then
     for f in "${HBASE_HOME}"/lib/client-facing-thirdparty/*.jar; do
       if [[ ! "${f}" =~ ^.*/htrace-core-3.*\.jar$ ]] && \
          [ "${f}" != "htrace-core.jar$" ] && \
-         [[ ! "${f}" =~ ^.*/slf4j-log4j.*$ ]]; then
+         [[ ! "${f}" =~ ^.*/log4j.*$ ]]; then
         echo -n ":${f}"
       fi
     done
@@ -720,8 +723,8 @@ elif [ "$COMMAND" = "hbtop" ] ; then
     done
   fi
 
-  if [ -f "${HBASE_HOME}/conf/log4j-hbtop.properties" ] ; then
-    HBASE_HBTOP_OPTS="${HBASE_HBTOP_OPTS} -Dlog4j.configuration=file:${HBASE_HOME}/conf/log4j-hbtop.properties"
+  if [ -f "${HBASE_HOME}/conf/log4j2-hbtop.properties" ] ; then
+    HBASE_HBTOP_OPTS="${HBASE_HBTOP_OPTS} -Dlog4j2.configurationFile=file:${HBASE_HOME}/conf/log4j2-hbtop.properties"
   fi
   HBASE_OPTS="${HBASE_OPTS} ${HBASE_HBTOP_OPTS}"
 else
@@ -810,10 +813,9 @@ fi
 
 HEAP_SETTINGS="$JAVA_HEAP_MAX $JAVA_OFFHEAP_MAX"
 # by now if we're running a command it means we need logging
-for f in ${HBASE_HOME}/lib/client-facing-thirdparty/slf4j-log4j*.jar; do
+for f in ${HBASE_HOME}/lib/client-facing-thirdparty/log4j*.jar; do
   if [ -f "${f}" ]; then
     CLASSPATH="${CLASSPATH}:${f}"
-    break
   fi
 done
 

bin/hbase.cmd

@@ -332,6 +332,7 @@ set HBASE_OPTS=%HBASE_OPTS% -Djava.util.logging.config.class="org.apache.hadoop.
 if not defined HBASE_ROOT_LOGGER (
   set HBASE_ROOT_LOGGER=INFO,console
 )
+
 set HBASE_OPTS=%HBASE_OPTS% -Dhbase.root.logger="%HBASE_ROOT_LOGGER%"
 
 if defined JAVA_LIBRARY_PATH (
@@ -348,6 +349,7 @@ if not defined HBASE_SECURITY_LOGGER (
     set HBASE_SECURITY_LOGGER=INFO,DRFAS
   )
 )
+
 set HBASE_OPTS=%HBASE_OPTS% -Dhbase.security.logger="%HBASE_SECURITY_LOGGER%"
 
 set HEAP_SETTINGS=%JAVA_HEAP_MAX% %JAVA_OFFHEAP_MAX%

conf/hbase-env.cmd

@@ -32,7 +32,7 @@
 @rem set HBASE_OFFHEAPSIZE=1000
 
 @rem For example, to allocate 8G of offheap, to 8G:
-@rem etHBASE_OFFHEAPSIZE=8G
+@rem set HBASE_OFFHEAPSIZE=8G
 
 @rem Extra Java runtime options.
 @rem Below are what we set by default.  May only work with SUN JVM.
@@ -82,6 +82,9 @@ set HBASE_OPTS=%HBASE_OPTS% "-XX:+UseConcMarkSweepGC" "-Djava.net.preferIPv4Stac
 @rem Tell HBase whether it should manage it's own instance of ZooKeeper or not.
 @rem set HBASE_MANAGES_ZK=true
 
+@rem Tell HBase the logger level and appenders
+@rem set HBASE_ROOT_LOGGER=INFO,DRFA
+
 @rem Uncomment to enable trace, you can change the options to use other exporters such as jaeger or
 @rem zipkin. See https://github.com/open-telemetry/opentelemetry-java-instrumentation on how to
 @rem configure exporters and other components through system properties.

conf/hbase-env.sh

@@ -126,11 +126,11 @@
 # export HBASE_MANAGES_ZK=true
 
 # The default log rolling policy is RFA, where the log file is rolled as per the size defined for the 
-# RFA appender. Please refer to the log4j.properties file to see more details on this appender.
+# RFA appender. Please refer to the log4j2.properties file to see more details on this appender.
 # In case one needs to do log rolling on a date change, one should set the environment property
 # HBASE_ROOT_LOGGER to "<DESIRED_LOG LEVEL>,DRFA".
 # For example:
-# HBASE_ROOT_LOGGER=INFO,DRFA
+# export HBASE_ROOT_LOGGER=INFO,DRFA
 # The reason for changing default to RFA is to avoid the boundary case of filling out disk space as 
 # DRFA doesn't put any cap on the log size. Please refer to HBase-5655 for more context.
 

conf/log4j2-hbtop.properties

@@ -0,0 +1,35 @@
+#/**
+# * Licensed to the Apache Software Foundation (ASF) under one
+# * or more contributor license agreements.  See the NOTICE file
+# * distributed with this work for additional information
+# * regarding copyright ownership.  The ASF licenses this file
+# * to you under the Apache License, Version 2.0 (the
+# * "License"); you may not use this file except in compliance
+# * with the License.  You may obtain a copy of the License at
+# *
+# *     http://www.apache.org/licenses/LICENSE-2.0
+# *
+# * Unless required by applicable law or agreed to in writing, software
+# * distributed under the License is distributed on an "AS IS" BASIS,
+# * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# * See the License for the specific language governing permissions and
+# * limitations under the License.
+# */
+
+status = warn
+dest = err
+name = PropertiesConfig
+
+# console
+appender.console.type = Console
+appender.console.target = SYSTEM_ERR
+appender.console.name = console
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = %d{ISO8601} %-5p [%t] %c{2}: %m%n
+
+rootLogger = WARN,console
+
+# ZooKeeper will still put stuff at WARN
+logger.zookeeper.name = org.apache.zookeeper
+logger.zookeeper.level = ERROR
+