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Administration Console Online Help

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Configure WLDF diagnostic volume

Before you begin

To generate diagnostic data in the Java Flight Recorder diagnostic image, WebLogic Server must be configured with Java HotSpot VM and Flight Recorder must be enabled. For more information, see Configuring Diagnostic Image Capture for Flight Recorder. Note that Java Flight Recorder is disabled by default. For information about how to enable Java Flight Recorder in WebLogic Server, see Using Java Flight Recorder with Java HotSpot VM.


The volume of diagnostic data produced by WebLogic Server can be adjusted to include more, or less, data. Note that the WLDF diagnostic volume setting does not affect explicitly configured diagnostic modules. By default, the diagnostics volume is set to Low.

To configure the WLDF diagnostic volume:

  1. In the left pane, select Environment > Servers.
  2. In the Servers table, click the name of the server instance for which you want to configure the WLDF diagnostic volume.
  3. Select Configuration > General.
  4. On the Servers: Configuration: General page, select one of the following values in Diagnostic Volume:
    • Off — No diagnostic data is automatically produced.
    • Low — A minimal volume of diagnostic data is automatically produced. This is the default.
    • Medium — Additional diagnostic data is automatically generated beyond the amount that is generated for Low.
    • High — Additional diagnostic data is automatically generated beyond the amount that is generated for Medium.

    For information about the events that are captured at each volume setting, see Configuring WLDF Diagnostic Volume.

  5. Click Save.
  6. In the Change Center, click Activate Changes.

Result

An image of the selected server's current configuration and state is saved to the listed directory. For information about viewing the diagnostic image data in Java Mission Control, see Configuring Diagnostic Image Capture for Flight Recorder.


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