# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
dataDir=/user/zookeeper/zkdata
# the port at which the clients will connect
clientPort=2181
# log dir
dataLogDir=/user/zookeeper/zkdatalog
# ip setting
server.1=192.168.31.135:2888:3888
server.2=192.168.31.136:2888:3888
server.3=192.168.31.137:2888:3888
[root@centos1 conf]# cat log4j.properties
#
# ZooKeeper Logging Configuration
#
# Format is " (, )+
# DEFAULT: console appender only
#日志级别
log4j.rootLogger=INFO, CONSOLE
# Example with rolling log file
#log4j.rootLogger=DEBUG, CONSOLE, ROLLINGFILE
# Example with rolling log file and tracing
#log4j.rootLogger=TRACE, CONSOLE, ROLLINGFILE, TRACEFILE
#
# Log INFO level and above messages to the console
#
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Threshold=INFO
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} - %-5p [%t:%C{1}@%L] - %m%n
#
# Add ROLLINGFILE to rootLogger to get log file output
# Log DEBUG level and above messages to a log file
log4j.appender.ROLLINGFILE=org.apache.log4j.RollingFileAppender
log4j.appender.ROLLINGFILE.Threshold=DEBUG
log4j.appender.ROLLINGFILE.File=zookeeper.log
# Max log file size of 10MB
log4j.appender.ROLLINGFILE.MaxFileSize=10MB
# uncomment the next line to limit number of backup files
#log4j.appender.ROLLINGFILE.MaxBackupIndex=10
log4j.appender.ROLLINGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.ROLLINGFILE.layout.ConversionPattern=%d{ISO8601} - %-5p [%t:%C{1}@%L] - %m%n
#
# Add TRACEFILE to rootLogger to get log file output
# Log DEBUG level and above messages to a log file
log4j.appender.TRACEFILE=org.apache.log4j.FileAppender
log4j.appender.TRACEFILE.Threshold=TRACE
log4j.appender.TRACEFILE.File=zookeeper_trace.log
log4j.appender.TRACEFILE.layout=org.apache.log4j.PatternLayout
### Notice we are including log4j's NDC here (%x)
log4j.appender.TRACEFILE.layout.ConversionPattern=%d{ISO8601} - %-5p [%t:%C{1}@%L][%x] - %m%n
# Define some default values that can be overridden by system properties
zookeeper.root.logger=INFO, CONSOLE #日志级别
zookeeper.console.threshold=INFO #使用下面的console来打印日志
zookeeper.log.dir=. #日志打印到哪里，就是在zoo.cfg中配置的路径
zookeeper.log.file=zookeeper.log
zookeeper.log.threshold=DEBUG
zookeeper.tracelog.dir=.
zookeeper.tracelog.file=zookeeper_trace.log
#
# ZooKeeper Logging Configuration
#
# Format is " (, )+
# DEFAULT: console appender only
#日志级别
#log4j.rootLogger=INFO, CONSOLE
log4j.rootLogger=${zookeeper.root.logger}
# Example with rolling log file
#log4j.rootLogger=DEBUG, CONSOLE, ROLLINGFILE
# Example with rolling log file and tracing
#log4j.rootLogger=TRACE, CONSOLE, ROLLINGFILE, TRACEFILE
#
# Log INFO level and above messages to the console
#
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Threshold=INFO
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} - %-5p [%t:%C{1}@%L] - %m%n
#
# Add ROLLINGFILE to rootLogger to get log file output
# Log DEBUG level and above messages to a log file
log4j.appender.ROLLINGFILE=org.apache.log4j.RollingFileAppender
log4j.appender.ROLLINGFILE.Threshold=DEBUG
log4j.appender.ROLLINGFILE.File=zookeeper.log
# Max log file size of 10MB
log4j.appender.ROLLINGFILE.MaxFileSize=10MB
# uncomment the next line to limit number of backup files
#log4j.appender.ROLLINGFILE.MaxBackupIndex=10
log4j.appender.ROLLINGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.ROLLINGFILE.layout.ConversionPattern=%d{ISO8601} - %-5p [%t:%C{1}@%L] - %m%n
#
# Add TRACEFILE to rootLogger to get log file output
# Log DEBUG level and above messages to a log file
log4j.appender.TRACEFILE=org.apache.log4j.FileAppender
log4j.appender.TRACEFILE.Threshold=TRACE
log4j.appender.TRACEFILE.File=zookeeper_trace.log
log4j.appender.TRACEFILE.layout=org.apache.log4j.PatternLayout
### Notice we are including log4j's NDC here (%x)
log4j.appender.TRACEFILE.layout.ConversionPattern=%d{ISO8601} - %-5p [%t:%C{1}@%L][%x] - %m%n
修改完成后，会发现日志文件输出目录不起作用。需修改zkEnv.sh 脚本，如下
[root@centos1 conf]# cat /user/zookeeper/zookeeper-3.3.6/bin/zkEnv.sh
#!/bin/sh
# 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.
# This script should be sourced into other zookeeper
# scripts to setup the env variables
# We use ZOOCFGDIR if defined,
# otherwise we use /etc/zookeeper
# or the conf directory that is
# a sibling of this script's directory
if [ "x$ZOOCFGDIR" = "x" ]
then
if [ -d "/etc/zookeeper" ]
then
ZOOCFGDIR="/etc/zookeeper"
else
ZOOCFGDIR="$ZOOBINDIR/../conf"
fi
fi
if [ "x$ZOOCFG" = "x" ]
then
ZOOCFG="zoo.cfg"
fi
ZOOCFG="$ZOOCFGDIR/$ZOOCFG"
if [ -e "$ZOOCFGDIR/java.env" ]
then
. "$ZOOCFGDIR/java.env"
fi
if [ "x${ZOO_LOG_DIR}" = "x" ]
then
ZOO_LOG_DIR="."
fi
if [ "x${ZOO_LOG4J_PROP}" = "x" ]
then
ZOO_LOG4J_PROP="INFO,CONSOLE"
fi
if [ "$JAVA_HOME" != "" ]; then
JAVA="$JAVA_HOME/bin/java"
else
JAVA=java
fi
#add the zoocfg dir to classpath
CLASSPATH="$ZOOCFGDIR:$CLASSPATH"
for i in "$ZOOBINDIR"/../src/java/lib/*.jar
do
CLASSPATH="$i:$CLASSPATH"
done
#make it work in the release
for i in "$ZOOBINDIR"/../lib/*.jar
do
CLASSPATH="$i:$CLASSPATH"
done
#make it work in the release
for i in "$ZOOBINDIR"/../zookeeper-*.jar
do
CLASSPATH="$i:$CLASSPATH"
done
#make it work for developers
for d in "$ZOOBINDIR"/../build/lib/*.jar
do
CLASSPATH="$d:$CLASSPATH"
done
#make it work for developers
CLASSPATH="$ZOOBINDIR/../build/classes:$CLASSPATH"
case "`uname`" in
CYGWIN*) cygwin=true ;;
*) cygwin=false ;;
esac
if $cygwin
then
CLASSPATH=`cygpath -wp "$CLASSPATH"`
fi
#echo "CLASSPATH=$CLASSPATH"
if [ "x${ZOO_LOG_DIR}" = "x" ]
then
#配置zookeeper日志输出存放路径
ZOO_LOG_DIR="/home/xxx/zookeeper-2181/logs"
fi
if [ "x${ZOO_LOG4J_PROP}" = "x" ]
then
#配置日志输出级别,这里把几个级别一并配上
ZOO_LOG4J_PROP="INFO,CONSOLE,ROLLINGFILE,TRACEFILE"
fi
这样zookeeper的日志配置就完成了。
(5) . 启动Zookeeper
执行如下命令
#进入到Zookeeper的bin目录下
cd /user/zookeeper/zookeeper-3.3.6/bin
#启动服务（3台都需要操作）
./zkServer.sh start
查看服务状态
./zkServer.sh status
通过该命令能看到如下信息则表示zookeeper已经成功启动
#192.168.31.136
[root@centos2 bin]# ./zkServer.sh status
JMX enabled by default
Using config: /user/zookeeper/zookeeper-3.3.6/bin/../conf/zoo.cfg
Mode: leader
#192.168.31.135
[root@centos3 bin]# ./zkServer.sh status
JMX enabled by default
Using config: /user/zookeeper/zookeeper-3.3.6/bin/../conf/zoo.cfg
Mode: follower
(6) . 常见问题
执行 ./zkServer.sh start 命令未出现异常，但是在执行./zkServer.sh status 命令时报
