zookeeper cluster

Zookeeper Distributed Services Framework is a subproject of the Apache Hadoop, it is Google's chubby an open source implementation, is mainly used to solve some of the data management problems frequently encountered in the distributed application, such as: Unified Naming Service, State Synchronization service, cluster management, Management of distributed application configuration items.Zookeeper are heavil

Zookeeper provides high-performance services for distributed applications and is widely used in many common cluster services, most commonly in hbase clusters, as well as in SOLR clusters, and HA automatic failover in Hadoop-2. This article mainly describes the process of deploying zookeeper clusters for hbase clusters, and explains the problems encountered during

the time limit for initialization) # The number of ticks that can pass between sending a request and getting an acknowledgement synclimit=5 (5*ticktime = 10s, defining the time limit for synchronization) # The directory where the snapshot is stored. Datadir=F:\paths\zookeeper\server1\zookeeper-3.3.6\data (the storage directory for custom data snapshots, the data directory needs to be created by

storm-1.0.1+zookeeper-3.4.8+netty-4.1.3ha cluster installationDownload Storm-1.0.1http//Mirrors.tuna.tsinghua.edu.cn/apache/storm/apache-storm-1.0.1/apache-storm-1.0.1.tar.gzDownload ZooKeeper-3.4.8http//Mirrors.cnnic.cn/apache/zookeeper/zookeeper-3.4.8/

TomcatChkconfig Tomcat onChkconfig--list TomcatShow:Tomcat 0:off 1:off 2:on 3:on 4:on 5:on 6:off← confirm 2~5 is on status OK2.3 Starting TomcatService Tomcat Start#增加防火墙配置, allow port 8080 to "temporarily do not turn on the firewall":Vi/etc/sysconfig/iptables#在允许ssh的下面增加一条 (Open Permissions!!! for Web servers only) ：Iptables-a input-p tcp-s 192.168.1.1--dport 8080-j ACCEPT/etc/rc.d/init.d/iptables SaveService Iptables RestartIptables-l-N2.4 Viewing the Tomcat processPS aux | grep Tomcatthird,

Original link: Zookeeper in the actual combat of the single cluster mode The previous article introduces the installation and application of zookeeper stand-alone mode, but zookeeper is designed to solve distributed application scenarios, so it is usually run in cluster mode

. Cluster modeStand-alone mode is handy for developing and testing scenarios, but in a production environment, you should run a cluster mode. Cluster mode should have at least 3 nodes, and it is strongly recommended that you have an odd number of nodes, each node should have the same configuration file.3.1 Modifying a configuration filecd /opt/

Linux Zookeeper cluster configurationFirst, pre-preparation 1, download zookeeper installation package: Http://zookeeper.apache.org/releases.html 2, JDK installation: jdk-8u131-linux-x64.rpm Second, the creation of software storage directory: Zook 1, [[email protected]/soft/zook]# Mkdir/soft/zookThird, change the name: Zookee