Heartbeat Load Balancing

Cluster is a hot topic, in the enterprise more and more application of Linux operating system to provide mail, Web, file storage, database and other services, with the growing application of Linux, high availability and http://www.aliyun.com/zixun/aggregation/ 13996.html "> Load balanced Linux cluster is also developing gradually in the enterprise. The low cost, high performance and high scalability of the Linux platform enable the Linux cluster to meet at a low price ...

This article shows how to setup an active-passive session-aware load balancing cluster (SLBC) consisting of two FortiGate-5000 chassis, four FortiController-5103Bs two in each chassis, and six FortiGate-5001Bs acting as workers, three in each chassis.

This recipe provides an example of how to set up a FortiGate for redundant Internet connectivity using SD-WAN and then convert this single FortiGate into an FGCP HA cluster of two FortiGates.

Remote invocation is the communication mechanism between system and process, and is the core technology of distributed system development. Remote invocation technology can form a group of computer systems into a network system, the external provision of the overall service, then this group of computer systems constitute a larger, more performance of the computer system. A general statement on the architecture design of the remote invocation service first, we need to understand the following questions: Why is a remote invocation service required in an application software service? What is the problem with the remote Invoke service that solves the software design? I have written an article on the design of distributed Web site architecture, ...

1. The introduction of the Hadoop Distributed File System (HDFS) is a distributed file system designed to be used on common hardware devices. It has many similarities to existing distributed file systems, but it is quite different from these file systems. HDFS is highly fault-tolerant and is designed to be deployed on inexpensive hardware. HDFS provides high throughput for application data and applies to large dataset applications. HDFs opens up some POSIX-required interfaces that allow streaming access to file system data. HDFS was originally for AP ...

Original: http://hadoop.apache.org/core/docs/current/hdfs_design.html Introduction Hadoop Distributed File System (HDFS) is designed to be suitable for running in general hardware (commodity hardware) on the Distributed File system. It has a lot in common with existing Distributed file systems. At the same time, it is obvious that it differs from other distributed file systems. HDFs is a highly fault tolerant system suitable for deployment in cheap ...

This recipe describes how to add a third FortiGate to an already established FGCP cluster (the cluster from High Availability with FGCP) and configure active-active HA.

-----------------------20080827-------------------insight into Hadoop http://www.blogjava.net/killme2008/archive/2008/06 /05/206043.html first, premise and design goal 1, hardware error is the normal, rather than exceptional conditions, HDFs may be composed of hundreds of servers, any one component may have been invalidated, so error detection ...

This article summarizes several hadoop yarn in http://www.aliyun.com/zixun/aggregation/17253.html "> common problems and solutions, note that this article describes the solution for hadoop 2.2.0 and above. 1) By default, the load of each node is unbalanced (the number of tasks is different), some nodes are running many tasks, some do not have tasks, and how to make each node tasks as balanced as possible?

From a single youth to ridicule the festival to the Electric Business Carnival day, Singles Day has become the hottest topic of the network, it seems that everyone is ready in the Singles Day on the Internet carnival. But deeply convinced that, silently in the network to work the management equipment can also be deployed only one, so that an Internet behavior management, an application delivery, a next-generation firewall can be in the Singles Day also with the same day network traffic like ' Carnival some '? ▲ Although theoretically can, but, this has-wind-risk! Single network device is not secure single network device running for a certain time after ...