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6.6.22: Administering server groups (overview) >
6.6.22.0: Server group properties
Key:
Applies to Java administrative console of Advanced Edition Version 4.0
Applies to Web administrative console of Advanced Single Server Edition Version 4.0
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
- An administrative name for the server group
- Workload management selection policy
- 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.
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 |
|
|
|