hadoop cluster configuration best practices

RabbitMQ-high-availability cluster deployment practices In the previous chapters, we talked about setting up and using the single-Host Mode of RabbitMQ. In the actual production environment, we will use the cluster mode to deploy RabbitMQ for performance and availability considerations.Basic concepts of RabbitMQ Clusters The Rabbit mode can be divided into the

Several Problem records during Hadoop cluster deployment This chapter deploy a Hadoop Cluster Hadoop 2.5.x has been released for several months, and there are many articles on configuring similar architectures on the Internet. So here we will focus on the

This article assumes the user basic understanding Docker, grasps the Linux basic Use command, understands Hadoop's general installation and the simple configuration Experimental environment: Windows10+vmware WorkStation 11+linux.14.04 server+docker 1.7 Windows 10 as a solid machine operating system, the network segment is: 10.41.0.0/24, virtual machine using NAT network, subnet for 192.168.92.0/24, gateway for 192.168.92.2,linux 14.04 as a virtual sys

first, the purpose of the experiment1. There is only one namenode for the existing Hadoop cluster, and a namenode is now being added.2. Two namenode constitute the HDFs Federation.3. Do not restart the existing cluster without affecting data access.second, the experimental environment4 CentOS Release 6.4 Virtual machines with IP address192.168.56.101 Master192.16

Hadoop cluster installation-CDH5 (three server clusters) Hadoop cluster installation-CDH5 (three server clusters) CDH5 package download: http://archive.cloudera.com/cdh5/ Host planning: IP Host Deployment module Process 192.168.107.82 Hadoop-NN-

Reprint Please indicate the source, thank you2017-10-22 17:14:09Before the development of the Maprduce program in Python, we tried to build the development environment before development by using Eclipse Java Development under Windows today. Here, summarize this process and hope to help friends in need. With Hadoop Eclipse plugin, you can browse the management HDFs and automatically create a template file for the Mr Program, and the best thing you can

6 HDFS installation process1) Unpack the installation package[Email protected]:/usr/local# tar-zxvf hadoop-2.4.0.tar.gzIf you are not using root user decompression, we recommend using Chown to modify the folder properties (for example, the current user is xiaoming)[Email protected]:/usr/local# sudo chown-r xiaoming:xiaoming HadoopIf the cluster is a 64-bit operating system, you need to replace the Lib/nativ

there are additional machines in the cluster. Finally, the last generated Authorized_keys is copied to the. SSH directory of each computer in the cluster, overwriting the previous authorized_keys.10. After completing the Nineth step, you can login to the other computer with password-free SSH on any computer in the cluster.2.6 Time SynchronizationIn the networked

to the Environment/etc/profile: Export hadoop_home =/ home/hexianghui/hadoop-0.20.2 Export Path = $ hadoop_home/bin: $ path 7. Configure hadoop The main configuration of hadoop is under the hadoop-0.20.2/CONF. (1) configure the Java environment in CONF/

piece of data is considered successful if it is successfully written to most journalnode. Typically configure an odd number of journalnode there is also a zookeeper cluster configured for ZKFC (Dfszkfailovercontroller) failover, which automatically switches when active Namenode is hung out standby Namenode for standby State 2. Hadoop-2.2.0 still has a problem, that is, there is only one ResourceManager, th

Build Hadoop cluster Complete process notesOne, virtual machines and operating systemsEnvironment: ubuntu14+hadoop2.6+jdk1.8Virtual machine: Vmware12Second, installation steps:First configure the JDK and Hadoop on a single machine:1. Create a new Hadoop userWith command: AddUser Hadoop2. In order for

, after JobTracker receives the submitted Job and configuration information, it will distribute the configuration information to the slave node, schedule the task, and monitor the execution of TaskTracker. From the above introduction, HDFS and MapReduce constitute the core of the Hadoop distributed system architecture. HDFS implements a distributed file system on

installationDescription: Perform the following steps for each node in the cluster. Document with NODE-12 configuration as an example1. Edit the/etc/hosts file and configure the nodes to parse each other[[emailprotected] ~]# cat /etc/hosts127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4::1 localhost localhost.localdomain localhost6 localhost6.localdomain610.71.11.12 no

clone out two slave nodes.$ lxc Copy Master slave0$ lxc start slave0$ lxc copy master slave1$ lxc start slave1OK, now that the two slave nodes are the same as master, we eliminate the hassle of duplicate configuration. Start the Hadoop cluster.$ LXC EXEC master--/bin/bash[email protected]# CD/usr/local/hadoop-2.7.3[

hostname or IP address of Linux, otherwise the Hadoop program under Windows can't connect to Linux or Hadoop on Mac to run and error., indicating that the connection failed:Description: If you are connecting using a host name, you need to configure the hostname-to-IP mapping.：(9) Start Hadoop in your Mac or Linux and use the JPS command to see if it is running s

This article assumes that users have a basic understanding of Docker, Master Linux basic commands, and understand the general installation and simple configuration of Hadoop.Lab Environment: windows10+vmware WorkStation 11+linux.14.04 server+docker 1.7 windows 10 as the physical machine operating system, the network segment is: 10.41.0.0/24, the virtual machine uses the NAT network, the subnet is the 192.168.92.0/ 24, the gateway is 192.168.92.2,linux

roles. An HDFS cluster is composed of one NameNode and several DataNode. NameNode acts as the master server to manage the file system namespace and client access to the file system; DataNode in the cluster manages the stored data. The MapReduce framework is composed of a single JobTracker running on the master node and a TaskTracker running on each slave node. The master node schedules all tasks of a job,

: $CLASSPATHExport path= $JAVA _home/bin: $JRE _home/bin: $PATHAfter the configuration is complete, the effect is:650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M02/7F/55/wKiom1caCGHyJd5fAAAf48Z-JKQ416.png "title=" 7.png " alt= "Wkiom1cacghyjd5faaaf48z-jkq416.png"/>3. No password login between nodesSSH settings require different operations on the cluster, such as start-up, stop, and distributed daem

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as the time server for the clusterZyf1.hadoop 172.21.192.1 Zyf1.hadoop172.21.192.2 Zyf2.hadoop172.21.192.3 Zyf3.hadoop172.21.192.4 Zyf4.hadoop172.21.192.5 Zyf5.hadoop Modify the configuration file (on the server node)# vi/etc/ntp.confRestrict 172.21.192.0 mask 255.255.255.0 nomodify notrap//Note Open, modify the network segment as the local