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6.6.22: Administering server groups (overview) >
6.6.22.0: Server group properties

6.6.22.0: Server group properties

Key:
Property name in the Java-based administrative console Applies to Java administrative console of Advanced Edition Version 4.0
Property name in the Web-based administrative console Applies to Web administrative console of Advanced Single Server Edition Version 4.0
Property name in the application client resource configuration tool Applies to Application Client Resource Configuration Tool

Some properties should only be modified at the server group level, while others should only be modified for individual servers in the server group. See below for a guide.

Server groups have the same properties as application server, with these additions.

Server Group Name  Property name in the Java-based administrative console
An administrative name for the server group
Workload management selection policy  Property name in the Java-based administrative console
Specifies the selection method to be used by clients in deciding which server to bind to, of the servers in the cluster. The choices are:
Random
Application server instances are selected randomly from within the group of clones associated with a server group.
Round robin
An application server instance is initially selected at random from an ordered list. Other application server instances are selected from the ordered list in turn, until the initially selected server is selected again. The sequence is repeated. If a particular application server instance is stopped or otherwise unavailable, that instance is skipped (no attempt is made to select it) until it can be verified as being back in service.
Random prefer local
Application server instances on the same host as the client are selected according to the random server selection policy. If no local application server instances are available, server instances on remote hosts are selected according to the random server selection policy.
Round robin prefer local
Application server instances on the same host as the client are selected according to the round-robin server selection policy. If no local application server instances are available, server instances on remote hosts are selected according to the round robin server selection policy.

The random prefer local and round-robin prefer local policies try to select application server instances within the same Java Virtual Machine (JVM) process. For instance, if a client and an application server clone are running in the same JVM process, the local clone is always picked over a clone in a separate JVM process.

Properties at the server group and individual server level

In general, after you have included an application server in a server group, you should only modify properties at the server group level, and not modify the properties of individual servers.

However, there are exceptions, noted with an "X" in the table below. The exceptions are known as 'clone-only' properties. They can be edited for individual clone servers. Clones inherit the value of these properties from the server group when the clone is first created. From that point on, changes to the version of the property for the server group do not effect the individual clones.

DisplayName Set this property for each server (as opposed to setting it in the server group properties)

General tab
Application Server Name X
Environment X
Working directory X
Node Startup State  
Maximum startup attempts  
Module visibility  
Advanced tab
Ping interval  
Ping timeout  
Ping initial timeout  
Process priority X
Use domain qualified user names  
File tab
Standard input X
Standard output X
Standard error X
File permissions  
Transaction tab
Transaction timeout  
Transaction inactivity timeout  
JVM Settings tab
Initial java heap size:  
Maximum java heap size  
Classpaths X
System Properties  
Advanced JVM Settings dialog
Command line arguments  
Enable debug mode X
Debug string X
Enable IBM distributed debugger X
Source path X
Run HProfs  
Hprof arguments  
Disable JIT X:
Enable class verbose mode X
Enable garbage collection verbose mode X
Enable JNI verbose mode X
Boot classpath (replace) X
Boot classpath (prepend) X
Boot classpath (append) X
Services tab
EJB Container service -- General tab
Passivation directory X
Cache size  
Cache clean-up interval  
Default datasource  
Web Container service -- General tab
Minimum thread size X
Maximum thread size X
Allow thread allocation beyond maximum X
Thread inactivity timeout X
Web Container service -- Transport tab
HTTP Transports X
HTTP Transport Properties dialog -- General page
Transport host X
Transport port X
Connection backlog X
Enable SSL X
Use global SSL default configuration X
Key file name X
Key file password X
Key file format X
Trust file name X
Trust file password X
Trust file format X
Enable client authentication X
Security Level X
HTTP Transport Properties dialog -- Advanced page
Enable Crypto Token Support X
Token type X
Library file X
Password X
Dynamic Properties X
Maximum keep alives X
Maximum requests per keep alive X
Keep alive timeout X
I/O timeout X
Web Container service -- Servlet Caching tab
Enable Servlet Caching  
Cache size  
Default priority  
External cache groups  
External cache groups dialog
Cache group name  
Members  
-- Adapter Bean Name  
-- Hostname  
Session Manager Service -- General tab
Enable SSL ID tracking  
Enable cookies  
Enable URL rewriting  
Session Manager Service -- Advanced tab
Allow overflow  
Integrate with WebSphere security  
Enable protocol switch rewriting  
Invalidation timeout  
Session Manager Service -- Cookies tab
Cookie domain  
Cookie path  
Restrict exchange of cookies to secure sessions  
Cookie maximum age  
Session Manager Service -- Persistence tab
Enable persistent sessions  
(values for above?)  
Configure Persistence Tuning
Write frequency  
Time based:  
Write contents  
Specify session database cleanup schedule for invalidated sessions  
First time of day  
Second time of day  
Session Manager Service -- Database tab
Data source  
Username  
Password  
DB2 row size  
Table space name  
Use multirow sessions  
Trace Service -- General tab
Trace specification X
Trace output file X
Object Level Trace Service -- General tab
Object Level Tracing enabled X
OLT server host X
OLT server port X
Performance Monitoring Settings -- General tab
Enable performance counter monitoring X
(counter settings) X
Object Request Broker -- General tab
Listener port X
Request timeout  
Locate request timeout  
Connection cache maximum  
Connection cache minimum  
Thread pool size X
Enable ORB tracing X
Object Request Broker -- Advanced tab
RMI remote codebase  
Request retry  
Request retry delay  
Enable HTTP tunneling  
Tunnel agent URL  
External config URL  
Pass by reference  
ORB SSL Configuration Properties - General tab
Enable SSL  
Use global SSL default configuration  
Key file name  
Key file password  
Key file format  
Trust file name  
Trust file password  
Trust file format  
Enable client authentication  
Security level  
ORB SSL Configuration Properties - Advanced tab
Enable Crypto Token Support  
Token type  
Library file  
Password  
SSL Properties  
Edit Custom Service dialog - General tab
Name  
Description  
Classpath  
Classname  
Configuration file URL  
Enabled  
Edit Custom Service dialog - Custom tab
Custom properties  
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