How can we calculate the hit count for the web server?
When you will get class loader exception ?
When you develop an application or start an installed application.
What is the use of shared libraries ? How to configure them ?
Shared libraries are files used by multiple applications. Each shared library consists of a symbolic name, a Java class path, and a native path for loading Java Native Interface (JNI) libraries. You can use shared libraries to reduce the number of duplicate library files on your system
A generic server is a server that is managed in the WebSphere administrative domain, although it is not a server that is supplied by WebSphere Application Server. The WebSphere Application Server gene...
SSL uses both symmetric and asymmetric encryption algorithms. Symmetric algorithms use the same key to encrypt and decrypt data. They are faster than asymmetric algorithms but can be insecure. Asymmet...
What are the different types of logging and troubleshooting utilities ?
WebSphere Application Server Troubleshooting Tools Use these tools to help you troubleshoot problems that are specific to WebSphere Application Server. For example, you can use these tools to analyze ...
How to generate a heap dump and what is the default location of heap dump and what is the format ?
to generate a heap dump we need to login to dmgr level bin directory and run the below
Code
./wsadmin.sh<----after that wsadmin prompt will come wsadmin>set jvm[$AdminControl CompleteObjectNames type=jvm,process=server1,*]<---server1 will be that server for which you are taking dumps wsadmin>$AdminControl.invoke $jvm generateheapdumps Default location:temp
Get the pid of the JVM (either from logs directory) or do a ps-ef |grep
then by using the pid
kill -3
Heap dumps location generally in the logs folder.
or you can change the location by getting into the admin console.
What are the jar files necessary to configure Oracle database?
For WASV7.0(JDK1.6),the ojdbc6.jar is used.The DB is 10G,11G.
ojdbc14.jar
In which file hostname is available in UNIX ?
For DB2-50000
For Oracle-1521(for TNS)
All the default ports for the Oracle ,see the below URL:---
http://docs.oracle.com/html/B10262_01/ports.htm
/etc/hosts
Default port number of ihs admin server ?
ihs default port 80,
ihs default secure is 443,
ihs admin default port 8008
Default port No For is IHS(IBM HTTP Servers)is 80 and 8080.
Default heap size Memory :256 MB
for Max Heap Size= ((Total_RAM/2)/No of Servers).
For Example Ram size =4 GB , No of servers=3
max Heap size =4GB /2/3 =666.3 MB
What is the use of collector tool?
Collector tools gather the Information of Application Server installation and logs and configuration Files in Single Jar file . and it will send to IBM Customer Support to determining and analyzing your problem.
What are the different types of log files ?
ihs log files:error.log and access.log
application server log
files:systemout.log,systemerr.log,nativestderror.log,nativestdout.log,trace.log
plugin log file:http-plugin.log
at node level activity.log
ffdc.log
We have different types of logs in WAS
JVM logs: SystemOut.log , SystemErr.log
process or Native logs : native_stdout.log, native_stderr.log
IBM service log : activity.log
Diagnostic log : trace.log
How can you check if your httpserver(or)web server is running or not?
serverStatus.bat server1
=> apachectl status
=> ps -eaf | grep httpd
If we give heap size value min=max at that time what are the advantages and disadvantages ?
heap size depends on following parameters
number of connection to the server
its ram size and
for 32 bit operating system it is 2 gb
for 64 bit operating system it is 4 gb
if Max heap = min heap then it takes a time for garbage collection .
How to find out which version of ihs server you are using ?
Go to the installation directory of the Web server.
Find the subdirectory that contains the executable,
execute the command
windows : apache.exe -V
Linux : ./httpd -v
aix/solaris : ./apachectl -v
What is the default port number of db2 database and orcle database ?
oracle-1521
db2-50000
What are the different types of log levels you have ?
Three types of log levels is there 1.Hops : When this setting is selected, you see the data at the application server level, not the level of individual components such as enterprise beans or servle...
What is the difference between ihs and embedded http server ?
IHS is the web server which receives the request before reaching the request to app server.
Embedded IHS is the embedded web server which decrease the burden on application server and it is not recommended for production environment.
Manged node is nothing but, the node is federated with Deployment Manage profile in Network Deployment then there may generate nodeagent for communication of Dmgr and node. So The node which have nodeagent that is Managed Node..
--Santha
After federating nodes to deployment manager. Nodes becomes managed nodes. Deployment manager profile maintains the configuration of entire cell