36) What is Symptom Database ?
A) -----> A Symptom is an error or event message.
-----> A Symptom Database is an XML file of symptoms , string match patterns , Associated solutions and directives.
------> Log records can be analyzed using Symptom Database to interpret known events and error conditions.
------> Symptom Databases can be imported from external XML Symptom Database , saved and exported into an external file in XML format.
------> You can either import Symptom Database from local or remote Host.
37) What is Clustering ? Types of Clustering ?
A) -----> It is a set of AppServers having same applications Installed,Grouped locally for WORKLOADMANAGEMENT (WLM)
------> Grouping of AppServers under a single application
------> Every cluster member must have the same configuration and same version.We can say each cluster member is the clone to one another.
There are 2 types of CLUSTERING
1) 1) VERTICAL CLUSTERING : Deployed the application on one machine and we can run that application on our own box(or) machine.
----> In this Vertical Clustering Machine FailOver is not possible.
----> If the machine gets failed we cannot run that application (or) SINGLE POINT OF FAILURE.
---> If one Server fails the other Server will takes care
----> If machine fails nothing can be done.
A) -----> A Symptom is an error or event message.
-----> A Symptom Database is an XML file of symptoms , string match patterns , Associated solutions and directives.
------> Log records can be analyzed using Symptom Database to interpret known events and error conditions.
------> Symptom Databases can be imported from external XML Symptom Database , saved and exported into an external file in XML format.
------> You can either import Symptom Database from local or remote Host.
37) What is Clustering ? Types of Clustering ?
A) -----> It is a set of AppServers having same applications Installed,Grouped locally for WORKLOADMANAGEMENT (WLM)
------> Grouping of AppServers under a single application
------> Every cluster member must have the same configuration and same version.We can say each cluster member is the clone to one another.
There are 2 types of CLUSTERING
1) 1) VERTICAL CLUSTERING : Deployed the application on one machine and we can run that application on our own box(or) machine.
----> In this Vertical Clustering Machine FailOver is not possible.
----> If the machine gets failed we cannot run that application (or) SINGLE POINT OF FAILURE.
---> If one Server fails the other Server will takes care
----> If machine fails nothing can be done.
-----> But when the physical machine failover happens we will lose every thing
2) HORIZONTAL CLUSTERING : Grouping of AppServers in which one AppServer should be on one node and Another AppServer should be on another node.
-----> Means if we take two machines one application should be deployed on different machines Remotely (or) one application should run in INDIA and another application should run in AMERICA.
-----> If Machine1 application will be deployed on Machine2 so we have to know the IP address of Machine1 then only it is possible to deployed that application Successfully.
----> Both Machines should have Internet Connection.
2) HORIZONTAL CLUSTERING : Grouping of AppServers in which one AppServer should be on one node and Another AppServer should be on another node.
-----> Means if we take two machines one application should be deployed on different machines Remotely (or) one application should run in INDIA and another application should run in AMERICA.
-----> If Machine1 application will be deployed on Machine2 so we have to know the IP address of Machine1 then only it is possible to deployed that application Successfully.
----> Both Machines should have Internet Connection.
----> Here no SINGLE POINT OF FAILURE.
----> It Supports MACHINE FAILOVER.
38) How will you fix Memory Leakage in WAS ?
A) ----> Memory Leakage issue is in Native code
----> For this issue we can need to get Heap Dumps and analyze the Dumps for any Memory issues.
-----> If we got any issue we need to ask developers to fix this issue.
-----> For Temporary purpose we can increase Heap size.
----> It Supports MACHINE FAILOVER.
38) How will you fix Memory Leakage in WAS ?
A) ----> Memory Leakage issue is in Native code
----> For this issue we can need to get Heap Dumps and analyze the Dumps for any Memory issues.
-----> If we got any issue we need to ask developers to fix this issue.
-----> For Temporary purpose we can increase Heap size.
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