[SPARK-6305][BUILD][FOLLOWUP] Remove log4j1 properties files

conf/log4j2.properties.template

@@ -0,0 +1,63 @@
+#
+# 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.
+#
+
+# Set everything to be logged to the console
+rootLogger.level = info
+rootLogger.appenderRef.file.ref = console
+
+appender.console.type = Console
+appender.console.name = console
+appender.console.target = SYSTEM_ERR
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = %d{yy/MM/dd HH:mm:ss} %p %c{1}: %m%n
+
+# Set the default spark-shell/spark-sql log level to WARN. When running the
+# spark-shell/spark-sql, the log level for these classes is used to overwrite
+# the root logger's log level, so that the user can have different defaults
+# for the shell and regular Spark apps.
+logger.repl.name = org.apache.spark.repl.Main
+logger.repl.level = warn
+
+logger.thriftserver.name = org.apache.spark.sql.hive.thriftserver.SparkSQLCLIDriver
+logger.thriftserver.level = warn
+
+# Settings to quiet third party logs that are too verbose
+logger.jetty1.name = org.sparkproject.jetty
+logger.jetty1.level = warn
+logger.jetty2.name = org.sparkproject.jetty.util.component.AbstractLifeCycle
+logger.jetty2.level = error
+logger.replexprTyper.name = org.apache.spark.repl.SparkIMain$exprTyper
+logger.replexprTyper.level = info
+logger.replSparkILoopInterpreter.name = org.apache.spark.repl.SparkILoop$SparkILoopInterpreter
+logger.replSparkILoopInterpreter.level = info
+logger.parquet1.name = org.apache.parquet
+logger.parquet1.level = error
+logger.parquet2.name = parquet
+logger.parquet2.level = error
+
+# SPARK-9183: Settings to avoid annoying messages when looking up nonexistent UDFs in SparkSQL with Hive support
+logger.RetryingHMSHandler.name = org.apache.hadoop.hive.metastore.RetryingHMSHandler
+logger.RetryingHMSHandler.level = fatal
+logger.FunctionRegistry.name = org.apache.hadoop.hive.ql.exec.FunctionRegistry
+logger.FunctionRegistry.level = error
+
+# For deploying Spark ThriftServer
+# SPARK-34128: Suppress undesirable TTransportException warnings involved in THRIFT-4805
+appender.console.filter.1.type = MarkerFilter
+appender.console.filter.1.marker = Thrift error occurred during processing of message
+appender.console.filter.1.onMatch = deny
+appender.console.filter.1.onMismatch = neutral

docs/core-migration-guide.md

@@ -22,6 +22,10 @@ license: |
 * Table of contents
 {:toc}
 
+## Upgrading from Core 3.2 to 3.3
+
+- Since Spark 3.3, Spark migrates its log4j dependency from 1.x to 2.x because log4j 1.x has reached end of life and is no longer supported by the community. Vulnerabilities reported after August 2015 against log4j 1.x were not checked and will not be fixed. Users should rewrite original log4j properties files using log4j2 syntax (XML, JSON, YAML, or properties format). Spark rewrites the `conf/log4j.properties.template` which is included in Spark distribution, to `conf/log4j2.properties.template` with log4j2 properties format.
+
 ## Upgrading from Core 3.1 to 3.2
 
 - Since Spark 3.2, `spark.scheduler.allocation.file` supports read remote file using hadoop filesystem which means if the path has no scheme Spark will respect hadoop configuration to read it. To restore the behavior before Spark 3.2, you can specify the local scheme for `spark.scheduler.allocation.file` e.g. `file:///path/to/file`.