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 Define load balancing - a definition from Whatis.com - see also: load balance, network load balancing
Load balancing is dividing the amount of work that a computer has to do between two or more computers so that more work gets done in the same amount of time and, in general, all users get served faster.
Load balancing can be implemented with hardware, software, or a combination of both.
Typically, load balancing is the main reason for computer server clustering.
http://searchsmb.techtarget.com/sDefinition/0,,sid44_gci214490,00.html   (322 words)

  
 Load Balancing
Load balancing for a parallel system is one of the most important problems which has to be solved in order to enable the efficient use of parallel computer systems.
The load balancing algorithms are integrated into real applications like distributed computer chess, finite element methods, and image generation.
In this area we develop and evaluate load balancing algorithms.
http://www.uni-paderborn.de/fachbereich/AG/monien/RESEARCH/LOADBAL   (329 words)

  
 ONJava.com -- Clustering and Load Balancing in Tomcat 5, Part 1
Load balancing (also known as high availability switch over) is a mechanism where the server load is distributed to different nodes within the server cluster, based on a load balancing policy.
There are many different algorithms to define the load distribution policy, ranging from a simple round robin algorithm to more sophisticated algorithms used to perform the load balancing.
For example, the weight-based algorithm has a longer computational time than the other algorithms.
http://www.onjava.com/pub/a/onjava/2004/03/31/clustering.html   (1789 words)

  
 Load Balancing
One can see that some configurations will yield better load balancing than others but this is a limitation of the particular space subdivision one chooses to implement, the more complex the subdivision one allows, the better load balancing but the harder it is to implement a suitable load balancing scheme and the associated ray caster.
The problem of computing the optimal (as defined by our heuristic choice) load balance partition indices can be solved naively as follows.
This section explains our new approach to load balancing, which is based on the PARC (polygon assisted ray casting) algorithm [2].
http://www.cs.sunysb.edu/~csilva/papers/prc/node4.html   (1199 words)

  
 Load balancer - Wikipedia, the free encyclopedia
Load balancing (performed by a load balancer) is a type of service performed by a computer that assigns work loads to a set of networked computer servers in such a manner that the computing resources are used in an optimal manner.
It has been suggested that this article or section be merged into Load balancing (computing).
In Global Server Load Balancing (GSLB) the load balancer distributes load to a geographically distributed set of server farms based on health, server loadload or proximity.
http://en.wikipedia.org/wiki/Load_balancer   (611 words)

  
 How To Configure Network Load Balancing Parameters in Windows Server 2003
If you are configuring a cluster or host by running Network Load Balancing Manager from a computer that is not part of the cluster, you do not have to be a member of the Administrators group on that computer.
If you are working from a computer that has a single network adaptor that is bound to Network Load Balancing in Unicast mode, you cannot use Network Load Balancing Manager on this computer to configure and manage other hosts because a single network adapter in Unicast mode cannot have intra-host communication.
http://support.microsoft.com/?id=323437   (3114 words)

  
 LoadBalancing.net
Load balancing technology came of age over the past year, making this one of the fastest evolving technologies in high availability networking.
This site was designed to serve as a clearinghouse for information to anyone who is curious about load balancing and to keep the momentum going as this exciting technology continues to develop.
It wasn't long ago that DNS round robin was considered the standard in sharing the load among servers, but then came software load balancing packages like Resonate and PC/router based units like F5 and Radware.
http://www.loadbalancing.net   (342 words)

  
 The Apache Jakarta Tomcat 5 Servlet/JSP Container - Load Balancer HOW-TO
You define the balancer filter in your web.xml, mapping it as desired (/* is a common use-case) and configuring it with your rules configuration file.
A Rule in the balancer system is a combination of a request matching criterion and a redirection URL for matching requests.
The first entry means that we want to load the server map which we created.
http://tomcat.apache.org/tomcat-5.0-doc/balancer-howto.html#UsingtheJKn...   (690 words)

  
 oreilly.com -- Online Catalog: Server Load Balancing
This vendor-neutral guide to the concepts and terminology of load balancing offers practical guidance to planning and implementing the technology in most environments.
The third section "Configuring Server Load Balancers" is also completely useless as most (if not all) vendors provide manuals on how to configure their SLB.
By comparing several load balancing products, you'll gain a deeper understanding of the technology and how best to use it to improve your network performance.
http://www.oreilly.com/catalog/serverload   (1365 words)

  
 InternetWeek The Business and Technology of the Internet http://internetweek.cmp.com
In the case of this unit, the company sent a technical-support engineer who was knowledgeable in the setup of WSD and load balancing, and Layer 4 routers in general.
In addition to balancing loads across a cluster of Web servers, it's often desirable to balance loads in the other direction as well--to create a virtual cluster of firewalls, routers or VPN devices.
A static algorithm is not very effective in balancing loads between servers in a cluster, since it is extremely unlikely that loads will be static.
http://internetweek.cmp.com/reviews00/rev012400.htm   (3554 words)

  
 Reliability and Load Balancing
Because the router will distribute the load randomly, any persistent session state needs to be handled by a centralized server like a database or use Resin's TCP-ring storage.
A router will distribute the load between the machines.
It performs the functions of the hardware load balancer or LoadBalanceServlet in the scenarios descriubed above.
http://www.caucho.com/resin-3.0/config/balance.xtp   (1833 words)

  
 Load Balancing (Linktionary term)
Still another type of load balancing occurs in multiprocessor systems, where processing loads are distributed across multiple processors in the same computer, or across an array of computers that are configured into a multiprocessing cluster.
For example, a single complex task may be broken into pieces that can be simultaneously processed on different processors.
Also see "InfiniBand" for information about switching technology for servers.
http://www.linktionary.com/l/load_balancing.html   (340 words)

  
 Load Balancing Linux Clusters
The High Availability Linux Project: Linux-HA is the home of the "heartbeat" code that is used for the highly available aspects of many load sharing and balancing cluster software packages.
Ultra Monkey: Ultra Monkey is based on LVS, and focuses on created load balanced, highly available services on a local area network.
This page will point you towards various software projects which implement load sharing and balancing solutions.
http://lcic.org/load_balancing.html   (431 words)

  
 Open Directory - Computers: Software: Internet: Site Management: Load Balancing
Pen - A load balancer for simple tcp based protocols such as http or smtp for Unix.
Ultra Monkey - Project to create load balanced and highly available services on a local area network using Open Source components on the Linux Operating System.
BalanceNG - BalanceNG is an IP load balancing software solution running on Linux or Solaris.
http://dmoz.org/Computers/Software/Internet/Site_Management/Load_Balancing   (736 words)

  
 PPL: Load Balancing
Seed load balancing involves the movement of object creation messages, or "seeds", to create a balance of work across a set of processors.
Parallel programs may run on clusters of workstations on an interactive user's desks, where the primary user only permits parallel computation when the computer is not being used interactively.
The programmer is left with the choice of either distributing computation haphazardly, producing poorly-performing programs, or spending more development time including load-balancing code in the application.
http://charm.cs.uiuc.edu/research/ldbal   (732 words)

  
 ONJava.com -- Load Balancing Web Applications
To balance server load, the system distributes requests to different nodes within the server cluster, with the goal of optimizing system performance.
This article offers an overview of several approaches to load balancing on Web application server clusters.
The multiple IP addresses represent the machines in the cluster, all of which map to the same single logical site name.
http://www.onjava.com/pub/a/onjava/2001/09/26/load.html   (1173 words)

  
 Macromedia - Developer Center : Implementing Multi-Tier Hardware Load Balancing with ColdFusion MX for J2EE or JRun
Software-based load-balancing solutions are suitable for smaller sites or when you use them as an interim solution in a growing site; for example, software-based load balancing is an economical way to move from a single-server site to a multiple-server site.
Many combinations are possible; you could use hardware for the front while relying on the JRun connector or other means of clustering to balance traffic to the distributed application instances, as the following illustration shows.
In this article, you will learn how to implement multitier hardware load balancing with ColdFusion or JRun in the J2EE environment.
http://macromedia.com/devnet/mx/coldfusion/j2ee/articles/balancing_j2ee.html   (1033 words)

  
 Cisco - How Does Load Balancing Work?
Per-destination load balancing means the router distributes the packets based on the destination address.
In Cisco IOS software, except the release 11.1CC, per packet load balancing does disable the forwarding acceleration by a route cache, because the route cache information includes the outgoing interface.
The way in which CEF works is that CEF does the switching of the packet based on the routing table which is being populated by the routing protocols such as EIGRP.
http://www.cisco.com/warp/public/105/46.html   (1193 words)

  
 Inlab: Balance
Barbara Irwin was so kind to include Balance in their famous Load of Linux Links (LoLL) GPL'ed Linux link database.
Here's the Balance Project Page at Sourgeforge (check it out for precompiled packages, forums, mailing lists and more).
Balance successfully runs at least on Linux(386), Linux(Itanium), FreeBSD, BSD/OS, Solaris, Cygwin, Mac-OS X, HP-UX and many more.
http://www.inlab.de/balance.html   (388 words)

  
 Load Balancing
Another important reason to use we load balancer is high availability.
Many router companies have built in load balancing functions.
Pay great attention to every detail of our product construction, the first load balancer delivered 5 years ago still operates in the customer site.
http://www.datacomequipment.com/LoadBalancing.html   (1330 words)

  
 How to Load Balance two Citrix Web Interface Servers
Fortunately you can also use the Windows Network Load Balancing (NLB) capabilities that are built-in to Windows Server 2003 for a zero-cost software-based load-balancing solution that will probably be sufficient for 99% of the people reading this.
This is why people invest in hardware or software load balancers.
Some people say that Windows NLB is crap, but those are usually people who have some other load balancing solution they want to sell to you.
http://www.brianmadden.com/content/content.asp?id=533   (2894 words)

  
 How to Configure Windows Network Load Balancing for pure Terminal Server environments
Do not enable Network Load Balancing on a computer that is part of a “real” Microsoft cluster services cluster.
Microsoft Windows Network Load Balancing (“NLB”) is the “free” out-of-the-box software load balancing solution available for Windows 2003-based Terminal Servers.
Windows Network Load Balancing works at the network level by distributing the network client request between hosts.
http://www.brianmadden.com/content/content.asp?id=278   (3382 words)

  
 Java load balancing design tips
Load balancing: random; minimum load; round-robin; weighted round-robin; performance-based; load-based; dynamic algorithm based; dynamic registration.
Consider cluster-related and load balancing programming issues from the beginning of the development process.
Partitioning the database across multiple machines adds scalability, but must be done with care.
http://www.javaperformancetuning.com/tips/loadbalance.shtml   (2064 words)

  
 Craft a load-balancing cluster with ClusterKnoppix
For passing loads, computers in a cluster must be connected to each other.
The computers in a cluster are called nodes.
Find information on Linux networking basics in the developerWorks tutorial series on Linux-powered networking.
http://www-128.ibm.com/developerworks/linux/library/l-clustknop.html   (2182 words)

  
 What is load balancing? - A Word Definition From the Webopedia Computer Dictionary
This page highlights their load balancing router product -- Equalizer.
Citrix® NetScaler® Load Balancer - Optimize traffic distribution with next generation load balancers
Product page for IBM's eNetwork Dispatcher load balancing software.
http://www.webopedia.com/TERM/l/load_balancing.html   (320 words)

  
 Load Balancing - LinuxQuestions.org
I have the feeling we saw the same trend with RAID based archs a few years ago: First software based raid was popular,then with time we all are now using Hardware Raid controllers.
Solution one, software based : I build a failover load balancing system from scratch with LVS.
Unless I have some solid experience inputs from LVS users, my guts say to go towards solution 2.
http://www.linuxquestions.org/questions/showthread.php?p=2118644#post2118644   (615 words)

  
 Introduction To Server Load Balancing - WebsiteGear
This article explains the various algorithms used in load balancing of servers.
The increase in traffic and connections to your website can lead to a point where upgrading the server hardware will no longer be cost effective.
The deciding factors for choosing a load balancing method over the other depends on the requirement, available features, complexity of implementation, and cost.
http://content.websitegear.com/article/load_balance.htm   (435 words)

  
 Load balancing - Wikipedia, the free encyclopedia
In computing, load balancing (computing) refers to balancing server traffic amongst multiple computers
Load balancing refers to the general practice of balancing a load.
In aviation, load balancing (aviation) refers to mbass/load balancing within an aircraft
http://en.wikipedia.org/wiki/Load_balancing   (109 words)

  
 Load balancing with distributed PovRay
To illustrate why some sort of load balancing is desirable consider the following image rendered in PovRay.
Note that a common option is to stagger the times that the rendering machines start so they are nt all reading from disk.
Keeping all processors busy is known as "load balancing".
http://astronomy.swin.edu.au/~pbourke/povray/gena   (702 words)

  
 Overview
Server load balancing based on server loads and weighted round-robin algorithms.
Designed specifically to optimize traffic management, the custom hardware specialty blade can help you achieve higher service levels by providing content load balancing based on URLs, CGI scripts, and cookies, and server load balancing based on server loads, response times, and weighted round-robin algorithms.
By off-loading traffic management tasks from system processors, the Sun Fire B10n Content Load Balancing Blade allows you to enhance service levels at a low cost by speeding data processing and increasing your traffic handling capacity.
http://www.sun.com/products/networking/blades/lb   (320 words)

  
 Foundry Advances Load Balancing
The feature is implemented in a new algorithm that exploits the load balancers' fully programmable gate arrays to achieve such performance levels.
The software can also now switch based on HTTP header information, allowing traffic from different languages, PDA devices or browser types to be funneled to specific servers.
To streamline configuration of the devices when using pairs of load balancers for high availability, Foundry added the ability to synchronize configurations.
http://www.eweek.com/article2/0,3959,1196168,00.asp   (961 words)

  
 Coyote Point Systems: Application Traffic Management Solutions
Network Computing: Coyote Point Systems' Equalizer E450si Load Balancer, Strike a Balance more...
http://www.coyotepoint.com   (63 words)

  
 Load Balancing - Compare Prices, Reviews and Buy at NexTag - Price - Review
Scheduling and Load Balancing in Parallel and Distributed Systems/Eh0417-6
Optimizing Web Performance With Content Switching: Server, Firewall and Cache Load...
Edimax BR-6541K 10/100Mbps Dual-WAN Bandwidth Aggregating and Load Balancing Router
http://www.nextag.com/load-balancing/search-html   (124 words)

  
 Load balancing
Since Microsoft Terminal Services Servers support many users, it's important to ensure that each Terminal Server is fully redundant and that the load is distributed between servers ensuring optimal service quality for users.
RDPLB also has Single-Sign-On support for Windows XP, 2000, NT4.0 and 95/98 clients so that users now only need authenticate themselves once at logon.
RDPLB is a Load Balancing Application for Windows 2003, 2000 and Windows NT 4.0 Terminal Server Edition.
http://www.msterminalservices.org/software/Load-balancing   (844 words)

  
 Configuring Network Load Balancing
This article describes how to enable and configure Network Load Balancing (NLB) in Windows 2000 Advanced Server or Datacenter Server.
You can upgrade your WLBS cluster hosts one at a time because Windows 2000 NLB interoperates with Windows NT 4.0 WLBS.
If you upgrade from Microsoft Windows NT 4.0 Windows Load Balancing Service (WLBS) to Windows 2000 Advanced Server or Windows 2000 Datacenter Server, NLB is automatically installed and the WLBS configuration settings are transferred to NLB.
http://support.microsoft.com/?kbid=240997   (426 words)

  
 LOAD BALANCING
The workload data collected are used for training comparator neural networks, a novel architecture for learning to compare functions of time series and for generating a load index to be used by the load balancing strategy.
Finally, the load-index traces generated by the comparator networks are used in a population-based learning system for tuning the parameters of a given load-balancing policy.
This book presents a system that learns new load indices and tunes the parameters of given migration policies.
http://www.worldscibooks.com/compsci/2631.html   (138 words)

  
 redhat.com
IP Load Balancing is based on open source Linux Virtual Server (LVS) technology, with significant Red Hat enhancements.
An IP Load Balancing (IPLB) cluster appears as one server, but, in reality, a user from the Web is accessing a group of servers behind a pair of redundant IPLB routers.
IP Load Balancing (often known by its project name, Piranha) provides the ability to load-balance incoming IP network requests across a farm of servers.
http://www.redhat.com/software/rha/cluster/piranha   (324 words)

  
 Your Source for Networking Access and Storage Networking Solutions: RAD-Direct.com
Our storage networking offering includes IP SAN and RAID storage solutions aimed at providing extremely reliable, high performance storage at a low cost per terabyte.
Our portfolio of carefully selected best-in-breed products includes fiber multiplexers, modems and media converters, solutions for the migration of legacy services to IP, load balancing solutions, and more.
http://www.rad-direct.com   (174 words)

  
 The ANTS Load Balancing System
The ANTS Load Balancing System is a piece of software that will allow jobs to be executed on computers connected in a network (eg.
The node best suited (at the time of execution) for the job given, will be chosen to execute the job.
Cry 'Havoc', and let slip the Dogs of War
http://unthought.net/antsd   (841 words)

  
 Super Sparrow:
This is done by accessing BGP routing information, the information that determines the path that traffic will take on the internet.
Wide-area load balancing: Article in Network World Fusion about Super Sparrow.
Super Sparrow enables users to load balance traffic between geographically separated points of presence by finding the site network-wise closest to clients.
http://www.supersparrow.org   (201 words)

  
 Server Load Balancing - SSL Acceleration - Content Switching Appliances from KEMP
LoadMaster 1500 is a new generation server load balancing appliance with integrated SSL Acceleration and Layer 7 content switching.
LoadMaster 2460 and 2860 are advanced, multi-port server load balancing and Layer 7 content switching appliance with integrated SSL Acceleration capability up to 1000 SSL TPS.
LoadMaster 3620 is an advanced, 2-port gigabit server load balancing appliance with Layer 7 content switching and integrated 1000 SSL TPS Acceleration capability.
http://www.kemptechnologies.com   (340 words)

  
 Load balancing for high availability
The authoritative DNS server has no knowledge of site availability or the load on sites.
Kopparapu is a product marketing manager at Foundry Networks, a maker of Web switches, Internet routers and Layer 3 switches located in San Jose.
The Web switch acts as a transparent DNS server proxy.
http://www.networkworld.com/news/tech/2000/0731tech.html   (981 words)

  
 CAI Networks - High performance load balancing solutions
CAI Networks - High performance load balancing solutions
IP load balancing and traffic management on a global basis.
The only layer 4 - 7 load balancer and traffic manager that offers high availability, failover, and top performance bundled with the industry's best warranty and free technical support.
http://www.cainetworks.com   (277 words)

  
 Dedicated Servers,Server Colocation,Server Hosting from Aplus.net
Load balancing is not available to shared hosting customers and dedicated server customers with just one server.
Aplus.Net’s Load Balancing Service monitors vital statistics on servers - such as availability and server load - and
With Aplus.Net and TiVo, Viewing Digital Photos is a Snap!
http://servers.aplus.net/loadbalance.html   (176 words)

  
 Load Balancing
That experience and expertise provides clients with the most comprehensive load balancing available.
http://www.baymountain.com/managed-hosting/database-hosting/load-balancing   (29 words)

  
 Load Balancing White Papers, Webcasts and Product Information from Top IT Vendors
Load Balancing White Papers, Webcasts and Product Information from Top IT Vendors
Browse the reports below to find the latest Load Balancing white papers, product literature, webcasts, and case studies.
Use of this web site constitutes acceptance of the Bitpipe Terms and Conditions and Privacy Policy.
http://www.bitpipe.com/data/rlist?t=itmgmt_10_40_10_12   (476 words)

  
 Sys Admin > An Apache Load Balancing Cluster
Sys Admin > An Apache Load Balancing Cluster
http://www.samag.com/documents/s=1155/sam0101a/0101a.htm   (789 words)

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