zookeeper集群起不起来
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参考技术A (1)解压为zookeepertar -xf -C /home/myuser/zookeeper/复制zookeeper文件夹3份,分别重名名为zookeeperA,zookeeperB,zookeeperC。 并且创建数据快照以及日志存放文件夹,命名为zooA,zooB,zooC。 (2)编辑对应的zookeeper配置文件,复制zookeeperconf下zoo_sample.cfg为zoo.cfgcd /home/myuser/zookeeperA/conf
cp zoo_sample.cfg zoo.cfg
(3)修改zoo.cfg# 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.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/home/myuser/zooA/data
# the port at which the clients will connect
clientPort=2181
# ZooKeeper server and its port no. # ZooKeeper ensemble should know about every other machine in the ensemble # specify server id by creating 'myid' file in the dataDir # use hostname instead of IP address for convenient maintenance
server.1=127.0.0.1:2888:3888
server.2=127.0.0.1:2988:3988
server.3=127.0.0.1:2088:3088
#
# Be sure to read the maintenance section of the
# administrator guide before turning>tickTime:心跳时间,为了确保连接存在的,以毫秒为单位,最小超时时间为两个心跳时间
initLimit:多少个心跳时间内,允许其他server连接并初始化数据,如果ZooKeeper管理的数据较大,则应相应增大这个值
clientPort:服务的监听端口
dataDir:用于存放内存数据库快照的文件夹,同时用于集群的myid文件也存在这个文件夹里(注意:一个配置文件只能包含一个dataDir字样,即使它被注释掉了。)
dataLogDir:用于单独设置transaction log的目录,transaction log分离可以避免和普通log还有快照的竞争
syncLimit:多少个tickTime内,允许follower同步,如果follower落后太多,则会被丢弃。
(4)创建myid文件
cd /home/myuser/zooA/data
sudo sh -c 'echo "1" >> myid'
其他文件夹类似创建myid文件,zookeeperB为2,zookeeperC为3
(5)启动zookeeper
cd /home/myuser/zookeeperA/bin
sudo sh zkServer.sh start
查看zookeeper状态[root@weibo bin]# sh zkServer.sh status
JMX enabled by default
Using config: /home/weibo/zookeeperA/bin/../conf/zoo.cfg
Mode: follower
启动OK,依次启动另外两台zookeeper,启动第一台zookeeper后,你可以观察bin下的zookeeper.out可以看到报错,connection
refused,没有关系,zookeeper需要等待其他另个节点的加入,全部启动之后就正常了。
(6)客户端连接zookeeper
[root@weibo bin]# sh zkCli.sh
Connecting to localhost:2181
2013-05-10 15:00:25,363 [myid:] - INFO [main:Environment@100] - Client environment:zookeeper.version=3.4.5-1392090, built>configs:保存上传的配置文件信息
clusterstate.json:集群状态json
aliases:别名json
live_node:当solr服务器启动的时候,会注册到这里
overseer:保存shard信息
overseer_elect:节点选举
collections:所有的collection本回答被提问者和网友采纳
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