Linux

Linux + Tomcat + XWiki + MySQL installation and configuration, old version, for reference only.Jdk1.5 Install jdk1.5, omittedXWiki uses the default Jetty + hsqldb Decompress xwi1_1.1-milestone-1.tar.gz

Problem description When Hadoop is installed for testing and learning, the following problems are encountered. Hadoop is 2.2.0, and the operating system is Oracle linux 6.3 64-bit. [Hadoop @ hadoop01 input] $ hadoop dfs-put./in DEPRECATED: Use of

Install libunwind   Install the libunwind library for the 64-bit operating system. Do not install the 32-bit operating system. The libunwind Library provides the basic stack trigger function for 64-bit CPU and operating system-based programs, these

DHCP refers to an IP address range controlled by the server. When a client logs on to the server, it can automatically obtain the IP address and subnet mask allocated by the server. First, the DHCP Server must be a computer installed with the

Nginx has several parameters to control the cache. This example uses nginx to cache image files. First, cache poolProxy_cache_path/var/cache/nginx/proxy_cache levels = 1:2 keys_zone = static: 50 m max_size = 10g inactive = 3d; This parameter

To improve work efficiency, we use version control software to manage projects, such as svn and git. Next we will take svbversion as an example to talk about how to install svn and deploy the project in CentOS. 1. Install the svn server and use

At the beginning of installation, I felt a lot of trouble. Now, I think this process is not too troublesome. Next, I will describe the following in the entire installation process. If there is something wrong or not in place during the entire

Regarding the firewall, Hadoop configuration is sure to be correct, and no error is reported when the cluster is started. However, when the 50070 page is opened, the number of live nodes is always incorrect, so I tried to configure the/etc/hosts

1. Introduction to webshells:Webbench is an excellent website stress testing tool developed by Lionbridge to test the performance of the same hardware, different services, and the running status of the same service on different hardware. Webbench

I. Regular Expression matching, where:*~ Case-sensitive matching*~ * Case-insensitive match*!~ And !~ * Case-insensitive and case-insensitive2. file and directory matching, where:*-F and! -F is used to determine whether a file exists.*-D and! -D is

First, configure the local yum source. You must have an iso installation file for the operating system on the local machine. The following uses Oracle linux as an example. # Cd/etc/yum. repos. d-- Rename other repo files# LsPublic-yum-el5.repo.1

1) machine preparation: There are a total of four physical machines. to configure a Hadoop cluster based on the physical machine, there are four nodes: one Master and three Salve nodes, Nodes are connected to each other through a LAN. The IP

The memory usage configuration of the Nagios monitoring client. In this example, the train configuration is used as an example. Configurations of the monitored end 1. Download The check_memory.pl script: Free in http://linux.bkjia.com/ The username

Rsync is a data image backup tool in unix-like systems. It can be seen from the software name-remote sync. Rsync for automatic data backup and synchronization in Windows I. experiment environmentServer: Linux CentOS 6.0 (192.168.1.220)Client 1:

Rsync is a data image backup tool in unix-like systems. It can be seen from the software name-remote sync. We have already introduced the Linux system as the server. Today we will introduce how to deploy rsync on Windows. Rsync for Automatic Data

Finally, the Hadoop fully distributed environment is successfully built. The longest delay is that datanode cannot be started. It is actually a low-level error. Three virtual machines, one master and two salve instances. The first error, view the

Embedded JavaScript GoAhead provides an embedded version of JavaScript with WebServer called Ejscript™. As the full JavaScript 1.2 specification is now quite a large language, its size prohibits use in most embedded devices. GoAhead's embedded

I recently learned about a distributed file system called MooseFS, which was rarely known about distributed systems. Distributed File Systems and distributed databases are close to each other, I think it's too complicated to be far away from me.

Hadoop learning notes-Hadoop cluster configuration and installation in the production environment Installation environment Operating Platform: vmware2 Operating System: Oracle Enterprise Linux 5.6 Software Version: hadoop-0.22.0, jdk-6u18 Cluster

Hadoop version cdh4.3.2 Exception description Journalnode prompts that the data cannot be written, and an exception is thrown at the backend.1.6.small: 50854: error: org. apache. hadoop. hdfs. qjournal. protocol. JournalNotFormattedException: