redhat cluster

1. Preface Let's briefly talk about the Server Load balancer cluster. It provides scalable and high-load server groups by multiple nodes in the case of high load of application servers to ensure good external service response; LVS is the technology that implements this function. It enables Kernel support for ipvs to implement LVS/direct routing (DR), LVS/IP tunnel, LVS/NAT functions. As the focus of this Article is on how to use LVS to build a Server

Mysql 5.0.22 Cluster for RedHat AS4-U2 Recently, I have seen a lot of information about cluster. I have been studying the load balancing and high availability of linux systems, but it has not been completely successful yet, but it only implements some simple services; today, I found that the mysql cluster is not very

while creating cluster" cluster ": Error Handling header from Oracle01: 11111, Error handling header from oracle02: 11111 "error. Solution: Make sure that the Service Ricci is in the startup status on the node. The created Cluster name is unique and never used. Disable iptables. Question 3: When you use LUCI to configure the Fence card, there is no ipmi. Solu

Recently saw a lot of information about cluster, has been studying Linux system-level load balancing and high availability, but has not been completely successful, but to achieve a number of simple services; today, in the collection of data to see the cluster about MySQL, it does not look very complicated, It took an afternoon of research, reference to the Nanu predecessors of the MySQL

Recently saw a lot of information about cluster, has been studying Linux system-level load balancing and high availability, but has not been completely successful, but to achieve a number of simple services; today, in the collection of data to see the cluster about MySQL, it does not look very complicated, It took an afternoon of research, reference to the Nanu predecessors of the MySQL

1, prepare three servers 2, install the Linux operating system separately for three machines (Oracle Linux/rhel 6.5 x86_64bit) 3, separate IP addressManagement Node 192.168.1.110 (responsible for managing the entire cluster)SQL Node 192.168.1.111 (responsible for manipulating the database)SQL Node 192.168.1.112 (responsible for manipulating the database)Data Node 192.168.1.111 (responsible for storing data)Data Node 192.168.1.112 (responsible for stor

0 Preface Starting from this article, the author will introduce how to build an ArcGIS 10.1 for server cluster in a Linux environment. Because the cluster involves Server Load balancer processing and requests need to be distributed among different machines, domain name resolution is required. In addition, machines in the cluster need to share the site configurati

RedHat 5.8 install Oracle 11gR2_Grid Cluster 1. Install the corresponding software package through rpm: Rpm-ivh binutils-2 *. i386.rpm Rpm-ivh binutils-2 *. x86_64.rpm Rpm-ivh compat-libstdc ++-33-* I * Rpm-ivh compat-libstdc ++-33-x * Rpm-ivh elfutils-libelf-0 *. i386.rpm Rpm-ivh elfutils-libelf-0 *. x * Rpm-ivh elfutils-libelf-devel-0 *. i386.rpm Rpm-ivh elfutils-libelf-devel-0.137-3.el5.x * Rpm-ivh compa

The previous chapter on the use of Django to build a test site is accessible to a simple monitoring system, the leadership requires that the cloud server CPU memory and other hardware monitoring information, and timely provision of reports Looked at the open source of this cluster monitoring scheme, decided to first adopt ganglia, after all, simple installation, report rich ~ Install ganglia The way to compile the installation is very cumbersome, dire

The user failed to perform the switchover because the path binding function was not used during the initial construction, and the storage-related drive letter was changed after the switchover. After negotiation with the user, change to multi-path binding. The problem is solved as follows: 1. Edit multipath. conf as follows: # devnode_blacklist {# devnode "*" #} multipaths { nb The user failed to perform the switchover because the path binding function was not used during the initial construction

[Root@mypc disk1]#./runinstaller Starting Oracle Universal Installer ...Checking Setup requirements ...Check operating system version: Must be redhat-3, SuSE-9, SuSE-10, redhat-4, redhat-5, redhat-6, UnitedLinux-1.0, Asianux-1, Asianux-2, Asianux-3, E Nterprise-4, enterprise-5 or SuSE-11Failure to pass Exiting Oracle

Redis Shards:Why shards: As Redis stores more and more data, the performance of Redis is getting worse!Current methods of sharding:1. Client ShardAt the application level of sharding, the program specifies what data is stored in the Redis advantage: more flexible disadvantage: Add a node expansion is very laborious 2, Agent Proxy shard Third party twemproxy use agent shortcomings, you agent what performance, then your whole redis performance is what kind of! 3. Redis cluster4, Codis (pea pod) Op

High Availability cluster configuration in RedHatAS3-Linux Enterprise Application-Linux server application information. For details, refer to the following section. This article references part of the chinaunix Forum rdd Brothers article http://www.chinaunix.net/jh/4/325828.html (RedHat AS2.1 cluster configuration StepbyStep under Vmware, in addition, the configu

installation and use, or it's going to be a problem when building a library, I'm 1.5g, and my swap is 2.9G. If you install Linux without setting the swap to sufficient size, please follow the following setting. $su-root #dd If=/dev/zero Of=tmpswap bs=1k count=900000 #chmod Tmpswap #mkswap Tmpswap #swapon Tmpswap ======= Installation of Oracle Universal Installer requires at least MB of free space at/tmp. Check/tmp: $DF/tmp If you don't have enough space in/TMP, you can create a TMP re

Linux is short for GNU/Linux. It is usually the general name of various Linux releases. Common Linux Manufacturers include RedHat/Novell. RedHat has two major Linux product series, one of which is the free Fedora Core series. It is mainly used for desktop versions and provides support for many new features. Another product series is the paid enterprise series, which is divided into as, es, WS, and other

In September 29, inspur group recently signed a strategic cooperation agreement with red hat, an open-source manufacturer. Based on the new-generation Red Hat Enterprise Operating System (Red Hat Enterprise Linux7 ), as well as comprehensive strategic cooperation between the nine categories of x86 platform products of inspur. According to the Cooperation Agreement, inspur will become a Red Hat OEM Partner. It is reported that the OEM Partner is the highest-level partner of

[Oracle @ sky ~] $/Oracle/database/runinstaller Starting Oracle universal installer... Checking installer requirements... Checking operating system versions: Must be a redhat-3, SuSE-9, redhat-4, UnitedLinux-1.0, asianux-1 or asianux-2 Failed Exiting Oracle universal installer. You can find the log for this session in/tmp/OraInstall2011-03-18_08-48-45PM/installActions2011-03-18_08-48-45PM.log This is

RedHat 6 desktop installation and redhat desktop Installation1. Configure the virtual optical drive of the yum library Virtualbox to be located in/dev/sr0. Therefore, after loading the RHEL6.5 image to vmware, you can configure the yum Library 1. attach an image [root @ db01 ~] # Mkdir/media/rhel [root @ db01 ~] # Mount-o loop/dev/sr0/media/rhel 2. Enable the image to be automatically mounted at startup and