What is the architecture of WebLogic server?
WebLogic Server operates in the middle tier of a multitier (or n-tier) architecture. A multitier architecture determines where the software components that make up a computing system are executed in relation to each other and to the hardware, network, and users.
What is load balancing cluster?
What are Clustering and Load Balancing. Server Clustering is a method of turning multiple computer servers into a cluster, which is a group of servers that acts like a single system. Load balancing aims to optimize resource usage, maximize throughput, minimize response time, and avoid overload of any single resource.
What is Layer 2 load balancing?
Layer 2 load balancing historically has required some method of ensuring that all traffic to member servers passes through the load balancer. This used to mean that you had an “in” and an “out” interface and you had the rest of the world on one of them and the member servers on the other.
How does WebLogic clustering work?
A WebLogic Server cluster consists of multiple WebLogic Server server instances running simultaneously and working together to provide increased scalability and reliability. The server instances that constitute a cluster can run on the same machine, or be located on different machines.
What are WebLogic components?
WebLogic Server Components Task Overview
- Java Naming and Directory Interface (JNDI)
- Java Messaging Service (JMS)
- Enterprise JavaBeans (EJBs)
- XA Transactions.
What are the different types of load balancer?
2.2 Types of Load Balancers – Based on Functions
- a.) Network Load Balancer / Layer 4 (L4) Load Balancer:
- b.) Application Load Balancer / Layer 7 (L7) Load Balancer:
- c.) Global Server Load Balancer/Multi-site Load Balancer:
- a.) Hardware Load Balancers:
- b.)
- c.)
- a) Round Robin Algorithm:
- b) Weighted Round Robin Algorithm:
What is load balancing in WebLogic Server?
Load Balancing in a Cluster This section describes the load balancing support that a WebLogic Server cluster provides for different types of objects, and related planning and configuration considerations for architects and administrators. It contains the following information:
How does WebLogic reduce network load?
By using collocating clustered objects during a transaction, WebLogic Server reduces the network load for accessing the individual objects. The server also can make use of a single-tiered JDBC connection, rather than a multi-tiered connection, to do the work of the transaction. Load Balancing for JMS
What is round robin load balancing in WebLogic?
Load Balancing with a Proxy Plug-in The WebLogic proxy plug-in maintains a list of WebLogic Server instances that host a clustered servlet or JSP, and forwards HTTP requests to those instances on a round-robin basis. This load balancing method is described in Round Robin Load Balancing.
What’s new in WebLogic Server 8?
WebLogic Server 8.1 introduces three new load balancing algorithms for RMI objects that provide server affinity. For more information, see Server Affinity Load Balancing Algorithms. In addition to the standard load balancing algorithms, WebLogic Server supports custom parameter-based routing.