16) What is FFDC ? what is the use?
A) FFDC ( First Failure Data Capture) It is generated at the first time failure of your system. It will be deleted automatically. It is useful for diagnosis. All WAS issues comes to FFDC
17) If u do any changes to plug-in file do we need to Restart?
A) IF we do any changes in plug-in file we need not to restart the plug-in again just save the file it will reflected to automatically to master repository
18) What is CoreGroup?
A) It contains singleton service it checks all on backend
Cell is responsible for making failover successful
By default coregroup will be created
It contains HighAvailability Service
19) WAS Prerequisites?
A) Base (6.1 version) Network Deployment(ND)
Ram - 2 GB To create cluster minimum requirements
1 GB for repository ND software
1 GB for secondary hard disk High end server with atleast 2 GB Ram
1.8 MHZ processor Main memory 2 GB
J2ee 1.4 Dmgr - 256 MB
Max Heapsize - 256 MB Node Agent - 256 MB
2 App servers 1 GB
Dmgr+Appserver
Morethan 1.5 GHZ processor
20) What is the use of Horizontal Clustering ?
A) Grouping of App servers under single name in which 1 App server should be on one node and Another App server should be on another node
we can deployed the applications in multiple hosts or physical boxes
If one host gets crashes another will take the responsibility to handle the request
If one application is not running on server1 we can deploy that application on server 2 in virtual host
it supports Failover mechanism
Multiple Appserver instances are created
A) FFDC ( First Failure Data Capture) It is generated at the first time failure of your system. It will be deleted automatically. It is useful for diagnosis. All WAS issues comes to FFDC
17) If u do any changes to plug-in file do we need to Restart?
A) IF we do any changes in plug-in file we need not to restart the plug-in again just save the file it will reflected to automatically to master repository
18) What is CoreGroup?
A) It contains singleton service it checks all on backend
Cell is responsible for making failover successful
By default coregroup will be created
It contains HighAvailability Service
19) WAS Prerequisites?
A) Base (6.1 version) Network Deployment(ND)
Ram - 2 GB To create cluster minimum requirements
1 GB for repository ND software
1 GB for secondary hard disk High end server with atleast 2 GB Ram
1.8 MHZ processor Main memory 2 GB
J2ee 1.4 Dmgr - 256 MB
Max Heapsize - 256 MB Node Agent - 256 MB
2 App servers 1 GB
Dmgr+Appserver
Morethan 1.5 GHZ processor
20) What is the use of Horizontal Clustering ?
A) Grouping of App servers under single name in which 1 App server should be on one node and Another App server should be on another node
we can deployed the applications in multiple hosts or physical boxes
If one host gets crashes another will take the responsibility to handle the request
If one application is not running on server1 we can deploy that application on server 2 in virtual host
it supports Failover mechanism
Multiple Appserver instances are created
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