kafka启动后，会产生会多日志，经常会将磁盘撑爆。所以kafka日志清理很有必要

log4j.properties

该文件为kafka日志管理的配置文件，位于$KAFKA_HOME/config/log4j.properties

默认该配置文件中日志存放路径为$KAFKA_HOME/logs，可以修改为其他容量较大的数据盘，比如我自己设置为/data/kafka/logs

注意：如果只是改了这个配置，是不生效的，还需要修改脚本$KA_FKA_HOME/bin/kafka-run-class.sh，加入以下配置

LOG_DIR="/data/kafka/logs"

log4j.properties配置

# 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.kafka.logs.dir=/data/kafka/logslog4j.rootLogger=INFO, defaultlog4j.appender.default=org.apache.log4j.RollingFileAppenderlog4j.appender.default.File=${kafka.logs.dir}/default.loglog4j.appender.default.MaxBackupIndex = 10log4j.appender.default.MaxFileSize = 100MBlog4j.appender.default.layout=org.apache.log4j.PatternLayoutlog4j.appender.default.layout.ConversionPattern=[%d] %p %m (%c)%nlog4j.appender.kafkaAppender=org.apache.log4j.RollingFileAppenderlog4j.appender.kafkaAppender.File=${kafka.logs.dir}/server.loglog4j.appender.kafkaAppender.MaxBackupIndex = 10log4j.appender.kafkaAppender.MaxFileSize = 100MBlog4j.appender.kafkaAppender.layout=org.apache.log4j.PatternLayoutlog4j.appender.kafkaAppender.layout.ConversionPattern=[%d] %p %m (%c)%nlog4j.appender.stateChangeAppender=org.apache.log4j.RollingFileAppenderlog4j.appender.stateChangeAppender.File=${kafka.logs.dir}/state-change.loglog4j.appender.stateChangeAppender.MaxBackupIndex = 10log4j.appender.stateChangeAppender.MaxFileSize = 100MBlog4j.appender.stateChangeAppender.layout=org.apache.log4j.PatternLayoutlog4j.appender.stateChangeAppender.layout.ConversionPattern=[%d] %p %m (%c)%nlog4j.appender.requestAppender=org.apache.log4j.RollingFileAppenderlog4j.appender.requestAppender.File=${kafka.logs.dir}/kafka-request.loglog4j.appender.requestAppender.MaxBackupIndex = 10log4j.appender.requestAppender.MaxFileSize = 100MBlog4j.appender.requestAppender.layout=org.apache.log4j.PatternLayoutlog4j.appender.requestAppender.layout.ConversionPattern=[%d] %p %m (%c)%nlog4j.appender.cleanerAppender=org.apache.log4j.RollingFileAppenderlog4j.appender.cleanerAppender.File=${kafka.logs.dir}/log-cleaner.loglog4j.appender.cleanerAppender.MaxBackupIndex = 10log4j.appender.cleanerAppender.MaxFileSize = 100MBlog4j.appender.cleanerAppender.layout=org.apache.log4j.PatternLayoutlog4j.appender.cleanerAppender.layout.ConversionPattern=[%d] %p %m (%c)%nlog4j.appender.controllerAppender=org.apache.log4j.RollingFileAppenderlog4j.appender.controllerAppender.File=${kafka.logs.dir}/controller.loglog4j.appender.controllerAppender.MaxBackupIndex = 10log4j.appender.controllerAppender.MaxFileSize = 100MBlog4j.appender.controllerAppender.layout=org.apache.log4j.PatternLayoutlog4j.appender.controllerAppender.layout.ConversionPattern=[%d] %p %m (%c)%n# Turn on all our debugging info#log4j.logger.kafka.producer.async.DefaultEventHandler=DEBUG, kafkaAppender#log4j.logger.kafka.client.ClientUtils=DEBUG, kafkaAppender#log4j.logger.kafka.perf=DEBUG, kafkaAppender#log4j.logger.kafka.perf.ProducerPerformance$ProducerThread=DEBUG, kafkaAppender#log4j.logger.org.I0Itec.zkclient.ZkClient=DEBUGlog4j.logger.kafka=INFO, kafkaAppenderlog4j.additivity.kafka=falselog4j.logger.kafka.network.RequestChannel$=WARN, requestAppenderlog4j.additivity.kafka.network.RequestChannel$=false#log4j.logger.kafka.network.Processor=TRACE, requestAppender#log4j.logger.kafka.server.KafkaApis=TRACE, requestAppender#log4j.additivity.kafka.server.KafkaApis=falselog4j.logger.kafka.request.logger=WARN, requestAppenderlog4j.additivity.kafka.request.logger=falselog4j.logger.kafka.controller=TRACE, controllerAppenderlog4j.additivity.kafka.controller=falselog4j.logger.kafka.log.LogCleaner=INFO, cleanerAppenderlog4j.additivity.kafka.log.LogCleaner=falselog4j.logger.state.change.logger=TRACE, stateChangeAppenderlog4j.additivity.state.change.logger=false