Interested to Buy Any Domain ? << Click Here >> for more details...
What is a cluster? What is High Availability and Fail over?
- 3 Answers
- 12673 Views
- IBM, I also Faced
- E-Mail Answers
Answer Posted / shrinath
A weblogic server cluster consists of multiple weblogic
server server instances running simultaneously working
together to provide increased scalability and reliability.
A cluster appears to clients to be a single weblogic server
instance. the server instances that constitute a cluster can
run on the same machine or be located on different machines.
you can increase a cluster's capacity by adding additional
server instances to the cluster on an existing machine or
you can add machines to the cluster to host the incremental
server instances. Each instance in a cluster must run the
same version of Weblogic Server.
HIGH AVAILABILITY:- In a weblogic server cluster,
application processing can continue when a server instance
fails. You "cluster " application components by deploying
them on multiple server instances in the cluster-so, if a
server instance on which a component is running fails,
another server instance on which that component is deployed
can continue application processing.
Fail Over:-simple put failover means that when an
application component doing a particular job some set of
processing tasks-becomes unavailable for any reason, a copy
of the failed object finishes the job. Web logic server uses
standards based communication techniques and facilities
including IP sockets and the java Naming and Directory
Interface (JNDI) to share and maintain information about the
availability of objects in a cluster.
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
What are the advantages of cluster?
How to configure jms?
How can we configure http tunneling on weblogic?
What is a trace in relation to web logic server?
Do you know what is the function of managedconnection.addconnectioneventlistener() in web logic server?
What is meant by jndi and why its needed??
How is a domain template created?
Why does for update in oracle 8 cause an ora-01002 error? : BEA Weblogic
What can be the reasons for server hang?
Tell me how is the security handled in web logic j2ee connector architecture?
How do I enable debugging for the messaging bridge? : BEA Weblogic
What is error ora-6502? : BEA Weblogic
What happens if acknowledge() is called within a transaction? : BEA Weblogic
When does high cpu usage occur?
Explain the Command line utilities in wls?
