1.修改/opt/zookeeper-3.4.6/bin/zkEnv.sh

if [ "x${ZOO_LOG_DIR}" = "x" ]
then
    ZOO_LOG_DIR="/apps/zookeeper/logs/"
fi
if [ "x${ZOO_LOG4J_PROP}" = "x" ]
then
    ZOO_LOG4J_PROP="INFO,ROLLINGFILE"
fi

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2.修改 /opt/zookeeper-3.4.6/conf/log4j.properties

zookeeper.root.logger=INFO,ROLLINGFILE
log4j.appender.ROLLINGFILE=org.apache.log4j.DailyRollingFileAppender
#log4j.appender.ROLLINGFILE.MaxFileSize=10MB

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3.修改 /opt/zookeeper-3.4.6/bin/zkServer.sh

可以不修改该文件，只是zk的启动脚本默认用nohup 启动会生成一个zookeeper.out的空文件

#_ZOO_DAEMON_OUT="$ZOO_LOG_DIR/zookeeper.out"

 "$JAVA" "-Dzookeeper.log.dir=${ZOO_LOG_DIR}" "-Dzookeeper.root.logger=${ZOO_LOG4J_PROP}" -cp "$CLASSPATH" $JVMFLAGS $ZOOMAIN "$ZOOCFG" &

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