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+# Licensed to the Apache Software Foundation (ASF) under one
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+# or more contributor license agreements. See the NOTICE file
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+# distributed with this work for additional information
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+# regarding copyright ownership. The ASF licenses this file
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+# to you under the Apache License, Version 2.0 (the
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+# "License"); you may not use this file except in compliance
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+# with the License. You may obtain a copy of the License at
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+#
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+# http://www.apache.org/licenses/LICENSE-2.0
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+#
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+# Unless required by applicable law or agreed to in writing, software
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+# distributed under the License is distributed on an "AS IS" BASIS,
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+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+# See the License for the specific language governing permissions and
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+# limitations under the License.
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+
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+# Define some default values that can be overridden by system properties
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+hadoop.root.logger=INFO,console
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+hadoop.log.dir=.
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+hadoop.log.file=hadoop.log
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+
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+# Define the root logger to the system property "hadoop.root.logger".
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+log4j.rootLogger=${hadoop.root.logger}, EventCounter
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+
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+# Logging Threshold
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+log4j.threshold=ALL
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+
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+# Null Appender
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+log4j.appender.NullAppender=org.apache.log4j.varia.NullAppender
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+
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+#
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+# Rolling File Appender - cap space usage at 5gb.
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+#
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+hadoop.log.maxfilesize=256MB
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+hadoop.log.maxbackupindex=20
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+log4j.appender.RFA=org.apache.log4j.RollingFileAppender
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+log4j.appender.RFA.File=${hadoop.log.dir}/${hadoop.log.file}
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+
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+log4j.appender.RFA.MaxFileSize=${hadoop.log.maxfilesize}
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+log4j.appender.RFA.MaxBackupIndex=${hadoop.log.maxbackupindex}
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+
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+log4j.appender.RFA.layout=org.apache.log4j.PatternLayout
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+
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+# Pattern format: Date LogLevel LoggerName LogMessage
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+log4j.appender.RFA.layout.ConversionPattern=%d{ISO8601} %p %c: %m%n
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+# Debugging Pattern format
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+#log4j.appender.RFA.layout.ConversionPattern=%d{ISO8601} %-5p %c{2} (%F:%M(%L)) - %m%n
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+
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+
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+#
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+# Daily Rolling File Appender
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+#
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+
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+log4j.appender.DRFA=org.apache.log4j.DailyRollingFileAppender
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+log4j.appender.DRFA.File=${hadoop.log.dir}/${hadoop.log.file}
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+
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+# Rollover at midnight
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+log4j.appender.DRFA.DatePattern=.yyyy-MM-dd
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+
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+log4j.appender.DRFA.layout=org.apache.log4j.PatternLayout
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+
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+# Pattern format: Date LogLevel LoggerName LogMessage
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+log4j.appender.DRFA.layout.ConversionPattern=%d{ISO8601} %p %c: %m%n
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+# Debugging Pattern format
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+#log4j.appender.DRFA.layout.ConversionPattern=%d{ISO8601} %-5p %c{2} (%F:%M(%L)) - %m%n
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+
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+
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+#
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+# console
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+# Add "console" to rootlogger above if you want to use this
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+#
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+
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+log4j.appender.console=org.apache.log4j.ConsoleAppender
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+log4j.appender.console.target=System.err
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+log4j.appender.console.layout=org.apache.log4j.PatternLayout
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+log4j.appender.console.layout.ConversionPattern=%d{ISO8601} %p %c{2}: %m%n
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+
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+#
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+# TaskLog Appender
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+#
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+log4j.appender.TLA=org.apache.hadoop.mapred.TaskLogAppender
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+
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+log4j.appender.TLA.layout=org.apache.log4j.PatternLayout
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+log4j.appender.TLA.layout.ConversionPattern=%d{ISO8601} %p %c: %m%n
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+
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+#
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+# HDFS block state change log from block manager
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+#
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+# Uncomment the following to log normal block state change
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+# messages from BlockManager in NameNode.
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+#log4j.logger.BlockStateChange=DEBUG
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+
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+#
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+#Security appender
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+#
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+hadoop.security.logger=INFO,NullAppender
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+hadoop.security.log.maxfilesize=256MB
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+hadoop.security.log.maxbackupindex=20
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+log4j.category.SecurityLogger=${hadoop.security.logger}
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+hadoop.security.log.file=SecurityAuth-${user.name}.audit
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+log4j.appender.RFAS=org.apache.log4j.RollingFileAppender
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+log4j.appender.RFAS.File=${hadoop.log.dir}/${hadoop.security.log.file}
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+log4j.appender.RFAS.layout=org.apache.log4j.PatternLayout
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+log4j.appender.RFAS.layout.ConversionPattern=%d{ISO8601} %p %c: %m%n
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+log4j.appender.RFAS.MaxFileSize=${hadoop.security.log.maxfilesize}
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+log4j.appender.RFAS.MaxBackupIndex=${hadoop.security.log.maxbackupindex}
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+
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+#
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+# Daily Rolling Security appender
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+#
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+log4j.appender.DRFAS=org.apache.log4j.DailyRollingFileAppender
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+log4j.appender.DRFAS.File=${hadoop.log.dir}/${hadoop.security.log.file}
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+log4j.appender.DRFAS.layout=org.apache.log4j.PatternLayout
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+log4j.appender.DRFAS.layout.ConversionPattern=%d{ISO8601} %p %c: %m%n
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+log4j.appender.DRFAS.DatePattern=.yyyy-MM-dd
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+
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+
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+# Custom Logging levels
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+# AWS SDK & S3A FileSystem
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+#log4j.logger.com.amazonaws=ERROR
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+log4j.logger.com.amazonaws.http.AmazonHttpClient=ERROR
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+#log4j.logger.org.apache.hadoop.fs.s3a.S3AFileSystem=WARN
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+
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+#
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+# Event Counter Appender
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+# Sends counts of logging messages at different severity levels to Hadoop Metrics.
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+#
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+log4j.appender.EventCounter=org.apache.hadoop.log.metrics.EventCounter
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+
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+
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+log4j.logger.org.apache.hadoop.ozone=DEBUG,OZONE,FILE
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+
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+# Do not log into datanode logs. Remove this line to have single log.
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+log4j.additivity.org.apache.hadoop.ozone=false
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+
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+# For development purposes, log both to console and log file.
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+log4j.appender.OZONE=org.apache.log4j.ConsoleAppender
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+log4j.appender.OZONE.Threshold=info
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+log4j.appender.OZONE.layout=org.apache.log4j.PatternLayout
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+log4j.appender.OZONE.layout.ConversionPattern=%d{ISO8601} [%t] %-5p \
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+ %X{component} %X{function} %X{resource} %X{user} %X{request} - %m%n
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+
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+# Real ozone logger that writes to ozone.log
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+log4j.appender.FILE=org.apache.log4j.DailyRollingFileAppender
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+log4j.appender.FILE.File=${hadoop.log.dir}/ozone.log
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+log4j.appender.FILE.Threshold=debug
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+log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
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+log4j.appender.FILE.layout.ConversionPattern=%d{ISO8601} [%t] %-5p \
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+(%F:%L) %X{function} %X{resource} %X{user} %X{request} - \
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+%m%n
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+
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+# Log levels of third-party libraries
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+log4j.logger.org.apache.commons.beanutils=WARN
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+
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+log4j.logger.org.apache.hadoop.util.NativeCodeLoader=ERROR
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+log4j.logger.org.apache.ratis.conf.ConfUtils=WARN
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Hanisha Koneru