That each server instance either writes to its server

that each server instance either writes to its server log file, standard out, memory buffer, or
broadcasts to the domain-wide log.
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Creating a Log Filter
1 2
3
4
5
1. After locking the configuration, in the Domain Structure, select the name of the domain.
2. Click the Configuration > Log Filters tab.
3 Click the New button
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3. Click the button.
4. On the Create a New Log Filter page, enter a name for the filter and click OK .
5. The new log filter appears in the Log Filters table. To configure a filter expression, click
the log filter name.
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Creating a Log Filter
6
7
Select the
message attribute
S l t th Select the
operator
Enter a value
6. On the Configuration page, click the Add Expressions button.
7. Specify an expression as part of the criteria for qualifying messages. A filter expression
defines simple filtering rules to limit the volume of log messages that are written to a
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particular log destination. Select a Message Attribute, an Operator, and a Value. Then
click OK . Continue to click the Add Expressions button and saving expressions until
you have entered all the expressions needed.
Note: The names of the subsystems can be found by looking through the “Impact” values in
the error messages in Oracle WebLogic Server Error Messages Reference .
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Creating a Log Filter
% is a
wildcard.
8
Expressions
can also be
manually
edited.
Ensure the expressions are
combined correctly.
8. After the expressions have been entered, ensure that the Boolean operators that
connect them are correct. Use the drop-down list to choose And or Or . Then click the
Save button. Finally, click Activate Changes in the Change Center.
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Log filter expressions are WLDF queries. For more information about the WLDF Query
Language see the appendix titled “WLDF Query Language” in the Configuring and Using the
Diagnostics Framework for Oracle WebLogic Server document.