Explore topic-wise InterviewSolutions in .

REMOTE WEBSERVER ACCESS through LOCAL (dmgr/cell).

Remote webserver access through local (dmgr/cell).

NODE with NODEAGENT.

Node with NodeAgent.

classloader

classloader

There is an algorithm that WEBSPHERE uses to find the timestamp of .jsp and .class files. It CHECKS that timestamp of .class FILE is always LATER than its CORRESPONDING .jsp file.

There is an algorithm that websphere uses to find the timestamp of .jsp and .class files. It checks that timestamp of .class file is always later than its corresponding .jsp file.

DMGR USES this PORT to TALK to NODE

DMGR uses this port to talk to node

NODE USES this PORT to TALK to DMGR.

Node uses this port to talk to DMGR.

ADMIN console…..JYTHON (JACL) SCRIPTS.

Admin console…..jython (jacl) scripts.

CONSOLE,,,JMX

console,,,JMX

WEBCONTAINER PORT on APPLICATION SERVER.

webcontainer port on application server.

2809

2809

9060, SSL 9043

9060, ssl 9043

plugin.log

plugin.log

see JVM & application are up, check PLUGIN-cfg.xml file for the ROOT context used by the WEB application if it does not exist generate plugin and RESTART web server.

see jvm & application are up, check plugin-cfg.xml file for the root context used by the web application if it does not exist generate plugin and restart web server.

environments–>WEBSPHERE VARIABLES

environments–>websphere variables

possible

possible

through ADMIN CONSOLE.

through admin console.

DU -SK (KB) du -SM (MB)

du -sk (kb) du -sm (mb)

The WEB CONTAINER provides a runtime environment for servlets, JSP’s, JAVABEANS, and static content.

The web container provides a runtime environment for servlets, jsp’s, javabeans, and static content.

EXPRESS, BASE, NETWORK DEPLOYMENT

express, base, network deployment

389 or 636

389 or 636

ADMIN server, web container, ejb container,j2c service, NAMING server, MESSAGING ENGINE, security server.

admin server, web container, ejb container,j2c service, naming server, messaging engine, security server.

client applications use the bootstrap PORT to access websphere’s built-in object request broker (orb) to use enterprise java beans in applications installed on the application server. The java naming and directory INTERFACE service provider url used by the client application needs to REFERENCE the bootstrap port to obtain an initial context for looking up ejb’s it WANTS to use. (For COMMUNICATE two servers)

client applications use the bootstrap port to access websphere’s built-in object request broker (orb) to use enterprise java beans in applications installed on the application server. The java naming and directory interface service provider url used by the client application needs to reference the bootstrap port to obtain an initial context for looking up ejb’s it wants to use. (For communicate two servers)

we can register RESOURCES in the application server’s java naming and directory interface (jndi) namespace. CLIENT applications can then OBTAIN the references to these resource OBJECTS in their programs.

we can register resources in the application server’s java naming and directory interface (jndi) namespace. Client applications can then obtain the references to these resource objects in their programs.

possible

possible

SERVER SIDE MACHINE

server side machine

systemout, systemerr

systemout, systemerr

type4
1. It is pure java ORIENTED
2.require CLIENT SIDE software
type2
1.it is not a pure java oriented driver
2.no NEED any client software.

type4
1. It is pure java oriented
2.require client side software
type2
1.it is not a pure java oriented driver
2.no need any client software.

A DATA source is associated with a jdbc PROVIDER that supplies the specific jdbc DRIVER IMPLEMENTATION class.

A data source is associated with a jdbc provider that supplies the specific jdbc driver implementation class.

jdbc is a LOW level PURE JAVA API USED to execute sql statements.

jdbc is a low level pure java api used to execute sql statements.

http.log, plugin.log

http.log, plugin.log

Both BEA Weblogic and IBM’s WebSphere provide J2EE based APPLICATION servers which are competitors. WebSphere leverages more on CONNECTIVITY issues with MQ and LEGACY systems with strong dominance in J2EE.

Both BEA Weblogic and IBM’s WebSphere provide J2EE based application servers which are competitors. WebSphere leverages more on connectivity issues with MQ and legacy systems with strong dominance in J2EE.

Web Sphere Studio 3.5, comes up with VISUAL Age for Java. WSAD 5.0 supports J2EE 1.3 java specifications. RAD 6.0 supports J2EE 1.4 and integrated with Eclipse 3.0, UML Visual Editor, Tomcat Jakarta, Ant scripting, EJB universal test client and SOA tools.

Web Sphere Studio 3.5, comes up with Visual Age for Java. WSAD 5.0 supports J2EE 1.3 java specifications. RAD 6.0 supports J2EE 1.4 and integrated with Eclipse 3.0, UML Visual Editor, Tomcat Jakarta, Ant scripting, EJB universal test client and SOA tools.

dmgr app custom:

1. its used for administration
2. admin console is there
3. plain NODE purpose of REMAINING profiles
4. initially one app SERVER there
5. empty node
6. it supports the distributed
7. work independently environment.
8.  Put applications
9. it is not included app server
10. admin console is there
11. work independently
12. do not put applications.

     

dmgr app custom:

1.deployment MANAGER PROFILES 2.application SERVER profiles 3.custom PROFILE.

1.deployment manager profiles 2.application server profiles 3.custom profile.

A node CORRESPONDS to a physical computer SYSTEM with a distinct IP HOST address.The node NAME is usually the same as the host name for the computer.

A node corresponds to a physical computer system with a distinct IP host address.The node name is usually the same as the host name for the computer.

The application SERVER PROVIDES a runtime environment in which to deploy, manage, and RUN J2EE applications.

The application server provides a runtime environment in which to deploy, manage, and run j2ee applications.

addnode.sh 8879

addnode.sh 8879

CUSTOM PROFILE.

Custom Profile.

startserver.sh SERVER1.

startserver.sh server1.

LOGICAL GROUP of SERVERS.

logical group of servers.

PS –ef| GREP JAVA

ps –ef| grep java

monitoring and tuning–>PMI–>SELECT any PROCESS (server1, nodeagent, dmgr) and then enable PMI–>then apply and then save. Select PERFORMANCE viewer–>current activity and then select enabled process and click the start monitoring BUTTON after that process select.

monitoring and tuning–>PMI–>select any process (server1, nodeagent, dmgr) and then enable PMI–>then apply and then save. Select performance viewer–>current activity and then select enabled process and click the start monitoring button after that process select.

SSL is a PROTOCOL for PROVIDING encrypted DATA communications between two processes.

ssl is a protocol for providing encrypted data communications between two processes.

open console and then select security option in the right SIDE menu, and then select localOs REGISTRY in the user registry, then enter the username, passwords. And again select global security then ltpa option then provide the password, then SAVE the configuration. And restart the deployment server and then relogin the console.

open console and then select security option in the right side menu, and then select localOs registry in the user registry, then enter the username, passwords. And again select global security then ltpa option then provide the password, then save the configuration. And restart the deployment server and then relogin the console.

It PROVIDES the authentication and authorization for WEBSPHERE APPLICATION server DOMAIN (administration client or console).

It provides the authentication and authorization for websphere application server domain (administration client or console).

plug-in is one of the modules it is interface between application server and web server, the plug-in process receives the REQUEST from the CLIENT first. If the request is for dynamic CONTENT, the plug-in diverts the request to the WEBSPHERE application server. If the request is for static content, the plug-in forwards it to the HTTP server.

plug-in is one of the modules it is interface between application server and web server, the plug-in process receives the request from the client first. If the request is for dynamic content, the plug-in diverts the request to the websphere application server. If the request is for static content, the plug-in forwards it to the Http server.

IHS (IBM HTTP SERVER) is one of the web servers. It SERVES the static content only and it TAKES up only http requests.

IHS (IBM HTTP Server) is one of the web servers. It serves the static content only and it takes up only http requests.

To INCREASE HEAP MEMORY SIZE.

To increase heap memory size.

Objects STORAGE SPACE for objects references created at RUN TIME in a jvm is heap memory.

Objects storage space for objects references created at run time in a jvm is heap memory.

A trace is an informational record that is intended for service ENGINEERS or developers to USE. As such, a trace record might be considerably more COMPLEX, verbose and detailed than a message ENTRY.

A trace is an informational record that is intended for service engineers or developers to use. As such, a trace record might be considerably more complex, verbose and detailed than a message entry.