Session management custom properties
You can specify additional settings for session management through
setting custom properties.
To specify custom properties for session management, use the following
steps:
- In the administrative console click Servers > Application Servers
> server_name > Web Container settings > Web Container > Custom
Properties.
- On the Custom Properties page, click New.
- On the settings page, enter the property that you want to configure in
the Name field and the value that you want to set it to in the Value field.
- Click Apply or OK.
- Click Save on the console task bar to save your configuration changes.
- Restart the server.
- CloneSeparatorChange
- Use this property to maintain session affinity. The clone ID of the server
is appended to session identifier separated by colon. On some Wireless Application
Protocol (WAP) devices, a colon is not allowed. Set this property to "true"
to change clone separator to a plus sign (+).
- HttpSessionCloneId
- Use this property to change the clone ID of the cluster member. Within
a cluster, this name must be unique to maintain session affinity. When set,
this name overwrites the default name generated by WebSphere Application Server.
Default clone ID length: 40.
- HttpSessionIdLength
- Use this property to configure the session identifier length. Do not use
an extremely low value; using a low value results in reduced number of combinations
possible, thereby increasing risk of guessing the session identifier. In a
cluster, all cluster members should be configured with same ID length. Allowed
range: 8 to 128. Default length: 23.
- HttpSessionReaperPollInterval
- Use this property to set a wake-up interval for the process that removes
invalid sessions. Default is based on maximum inactive interval set in Session
Management. Allowed value: integer.
- NoAdditionalSessionInfo
- Set this value to "true" to force removal of information that is not needed
in session identifiers. In WebSphere Application Server base edition,a clone ID is not included in
base edition when this is set. Also, cache ID is not used with nonpersistent
sessions; so the cache ID is not included with nonpersistent sessions when
this value is set.
- SessionIdentifierMaxLength
- Use this value to set maximum length that a session identifier can grow.
In a cluster, because of fail-over when a request goes to new cluster member,
Session Management appends a new clone ID to the existing clone ID. In a
large cluster, if for some reason servers are failing more often, then it
is possible that the session identifier length can be more than expected reducing
room for URL. So this property helps to find out the condition and take appropriate
action to address servers fail-over. When this is specified, message is logged
when specified maximum length is reached. Allowed value: integer.
- SessionRewriteIdentifier
- Use this property to change the key used with URL rewriting. Default key:
jsessionid.

Configuring session tracking
Searchable topic ID:
rprs_custom_properties
Last updated: Jun 21, 2007 9:56:50 PM CDT
WebSphere Application Server for z/OS, Version 5.0.2
http://publib.boulder.ibm.com/infocenter/wasinfo/index.jsp?topic=/com.ibm.websphere.zseries.doc/info/zseries/ae/rprs_custom_properties.html