您的位置:首页 > 数据库 > Redis

在redhat6.4安装redis集群【教程】

2016-05-09 10:16 627 查看

  参考:

  http://redis.io/topics/cluster-tutorial(主要是Creating a Redis Cluster using the create-cluster script部分)

  https://ruby.taobao.org/

  安装一款不熟悉的软件前先看INSTALL,README,这是习惯,生产上要建立普通用户并调节适当参数,下面是以root身份安装运行.

  下载解压并安装redis

  make test提示需要更高版本的tcl,跳到安装过程可能遇到的问题

  

wget http://download.redis.io/releases/redis-3.0.7.tar.gz
tar xf redis-3.0.7.tar.gz
cd redis-3.0.7
mkdir -p /opt/redis
make test
make PREFIX=/opt/redis install

  复制两个脚本到安装的目录

 

 cp ~/redis-3.0.7/src/redis-trib.rb /opt/redis/
  cp ~/redis-3.0.7/utils/create-cluster/create-cluster /opt/redis/1212
 

  根据实际修改/opt/redis/create-cluster.改动的地方有几处

  a.增加了三个变量BASEDIR,BINDIR和DATADIR,

  b.修改相关命令路径,

  c.start前,先进入DATADIR,start后,返回原目录

  d.clean前,先进入DATADIR,start后,返回原目录

  e.create的host由127.0.0.1改为192.168.1.194(不改有时会报Too many Cluster redirections)

  下面是修改后的shell

 

 #!/bin/bash
  # Settings
  PORT=30000
  TIMEOUT=2000
  NODES=6
  REPLICAS=1
  BASEDIR=/opt/redis
  BINDIR=$BASEDIR/bin
  DATADIR=$BASEDIR/data
  # You may want to put the above config parameters into config.sh in order to
  # override the defaults without modifying this script.
  if [ -a config.sh ]
  then
  source "config.sh"
  fi
  # Computed vars
  ENDPORT=$((PORT+NODES))
  if [ "$1" == "start" ]
  then
  cd $DATADIR
  while [ $((PORT < ENDPORT)) != "0" ]; do
  PORT=$((PORT+1))
  echo "Starting $PORT"
  $BINDIR/redis-server --port $PORT --cluster-enabled yes --cluster-config-file nodes-${PORT}.conf --cluster-node-timeout $TIMEOUT --appendonly yes --appendfilename appendonly-${PORT}.aof --dbfilename dump-${PORT}.rdb --logfile ${PORT}.log --daemonize yes
  done
  cd -
  exit 0
  fi
  if [ "$1" == "create" ]
  then
  HOSTS=""
  while [ $((PORT < ENDPORT)) != "0" ]; do
  PORT=$((PORT+1))
  HOSTS="$HOSTS 192.168.1.194:$PORT"
  done
  $BASEDIR/redis-trib.rb create --replicas $REPLICAS $HOSTS
  exit 0
  fi
  if [ "$1" == "stop" ]
  then
  while [ $((PORT < ENDPORT)) != "0" ]; do
  PORT=$((PORT+1))
  echo "Stopping $PORT"
  $BINDIR/redis-cli -p $PORT shutdown nosave
  done
  exit 0
  fi
  if [ "$1" == "watch" ]
  then
  PORT=$((PORT+1))
  while [ 1 ]; do
  clear
  date
  $BINDIR/redis-cli -p $PORT cluster nodes | head -30
  sleep 1
  done
  exit 0
  fi
  if [ "$1" == "tail" ]
  then
  INSTANCE=$2
  PORT=$((PORT+INSTANCE))
  tail -f ${PORT}.log
  exit 0
  fi
  if [ "$1" == "call" ]
  then
  while [ $((PORT < ENDPORT)) != "0" ]; do
  PORT=$((PORT+1))
  $BINDIR/redis-cli -p $PORT $2 $3 $4 $5 $6 $7 $8 $9
  done
  exit 0
  fi
  if [ "$1" == "clean" ]
  then
  cd $DATADIR
  rm -rf *.log
  rm -rf appendonly*.aof
  rm -rf dump*.rdb
  rm -rf nodes*.conf
  cd -
  exit 0
  fi
  echo "Usage: $0 [start|create|stop|watch|tail|clean]"
  echo "start -- Launch Redis Cluster instances."
  echo "create -- Create a cluster using redis-trib create."
  echo "stop -- Stop Redis Cluster instances."
  echo "watch -- Show CLUSTER NODES output (first 30 lines) of first node."
  echo "tail -- Run tail -f of instance at base port + ID."
  echo "clean -- Remove all instances data, logs, configs."123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102

  不要忘了创建数据目录mkdir -p /opt/redis/data

  根据上面的参考,启动集群和停止集群

  启动集群:先敲入/opt/redis/create-cluster start回车,再敲入/opt/redis/create-cluster create回车,再输入yes回车

  停止集群:敲入/opt/redis/create-cluster stop回车

  如果以前启动过,造成不一致数据,create时就会报错,可先/opt/redis/create-cluster clean

  测试

 

<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.8.1</version>
</dependency>

  声明JedisCluster Bean

@Bean
public JedisCluster jedisCluster(){
Set<HostAndPort> nodes=new HashSet<>(3);
nodes.add(new HostAndPort("192.168.1.194",30001));
nodes.add(new HostAndPort("192.168.1.194",30002));
nodes.add(new HostAndPort("192.168.1.194",30003));
return new JedisCluster(nodes,2000,5);
}

  测试set和get

  

AnnotationConfigApplicationContext context= new AnnotationConfigApplicationContext(AppConfig.class);
JedisCluster jedisCluster = (JedisCluster) context.getBean("jedisCluster");
jedisCluster.set("xxx","123");
System.out.println("jedisCluster.get = " + jedisCluster.get("xxx"));

  安装过程可能遇到的问题:

  make test时,提醒You need tcl 8.5 or newer in order to run the Redis test.到http://www.tcl.tk/software/tcltk/download.html下载Tcl,

 

wget http://prdownloads.sourceforge.net/tcl/tcl8.5.19-src.tar.gz
tar xf tcl8.5.19-src.tar.gz
cd tcl8.5.19/unix
./configure
make
make test
make install

  因为create-cluster create会调用redis-trib.rb,它是一个ruby脚本,所以提示没有安装ruby,就先安装yum install -y ruby

  如果提示加载rubygems错误,使用以下办法安装rubygems

  a.https://rubygems.org/pages/download下载tgz格式的安装包(wget可能不通,在windows用旋风或迅雷下载)

  b.mount -t cifs -o username=xiejx618,password=123456 //192.168.1.115/share /share

  

cp /share/rubygems-2.6.4.tgz ./
tar xf rubygems-2.6.4.tgz
cd rubygems-2.6.4
ruby setup.rb

  如果再提示no such file to load – rdoc/rdoc,就先安装yum install -y rdoc

  如果再提示 no such file to load – redis,就使用gem install redis -v 3.0.7

  gem又是因为墙原因无法使用默认源,就修改为淘宝源

  可能用到的几个命令

  帮助:gem sources --help

  查看源:gem sources -l

  删除源:gem sources -r https://rubygems.org/

  添加源:gem sources -a https://ruby.taobao.org/

  更新源缓存:gem sources -u

您可能感兴趣的文章:

内容来自用户分享和网络整理,不保证内容的准确性,如有侵权内容,可联系管理员处理 点击这里给我发消息
标签:  redis redhat6.4