As Luka Stojanovic suggested you need to a a file called /var/zookeeper/myid on each node:
$ echo 1,2 ... 6 > /var/zookeeper/myid I want to make a few more comments related to your setup and to your questions: - there is no configured master node in a zookeeper cluster. the leader is automatically elected at runtime - you can write and read from any node at any time > Am I supposed to have an instance of ZooKeeper on each node started before > running in replication mode? - you start the cluster by starting one node at a time > Should I have each node that will be running ZK listed in the config file? - yes. you need to have all nodes running ZK listed in the config file. > Should I be using an IP address to point to a server instead of a hostname? - it doesn't really make difference if you use hostnames or IP addresses. I hope this will help you. Andrei On Mon, Jun 21, 2010 at 10:04 PM, Erik Test <erik.shi...@gmail.com> wrote: > Hi All, > > I'm having a problem with installing zookeeper on a cluster with 6 nodes in > replicated mode. I was able to install and run zookeeper in standalone mode > but I'm unable to run zookeeper in replicated mode. > > I've added a list of servers in zoo.cfg as suggested by the ZooKeeper > Getting Started Guide but I get these logs displayed to screen: > > *[r...@master1 bin]# ./zkServer.sh start > JMX enabled by default > Using config: /root/zookeeper-3.2.2/bin/../conf/zoo.cfg > Starting zookeeper ... > STARTED > [r...@master1 bin]# 2010-06-21 12:25:23,738 - INFO > [main:quorumpeercon...@80] - Reading configuration from: > /root/zookeeper-3.2.2/bin/../conf/zoo.cfg > 2010-06-21 12:25:23,743 - INFO [main:quorumpeercon...@232] - Defaulting to > majority quorums > 2010-06-21 12:25:23,745 - FATAL [main:quorumpeerm...@82] - Invalid config, > exiting abnormally > org.apache.zookeeper.server.quorum.QuorumPeerConfig$ConfigException: Error > processing /root/zookeeper-3.2.2/bin/../conf/zoo.cfg > at > org.apache.zookeeper.server.quorum.QuorumPeerConfig.parse(QuorumPeerConfig.java:100) > at > org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:98) > at > org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:75) > Caused by: java.lang.IllegalArgumentException: /var/zookeeper/myid file is > missing > at > org.apache.zookeeper.server.quorum.QuorumPeerConfig.parseProperties(QuorumPeerConfig.java:238) > at > org.apache.zookeeper.server.quorum.QuorumPeerConfig.parse(QuorumPeerConfig.java:96) > ... 2 more > Invalid config, exiting abnormally* > > And here is my config file: > * > # The number of milliseconds of each tick > tickTime=2000 > # The number of ticks that the initial > # synchronization phase can take > initLimit=5 > # The number of ticks that can pass between > # sending a request and getting an acknowledgement > syncLimit=2 > # the directory where the snapshot is stored. > dataDir=/var/zookeeper > # the port at which the clients will connect > clientPort=2181 > server.1=master1:2888:3888 > server.2=slave2:2888:3888 > server.3=slave3:2888:3888 > * > I'm a little confused as to why this doesn't work and I haven't had any luck > finding answers to some questions I have. > > Am I supposed to have an instance of ZooKeeper on each node started before > running in replication mode? Should I have each node that will be running ZK > listed in the config file? Should I be using an IP address to point to a > server instead of a hostname? > > Thanks for your time. > Erik > -- Andrei Savu http://www.andreisavu.ro/
