5.5.7. Sample XML Configuration for a Async Log Handler

Procedure 5.7. Configure the Async Log Handler

1. Add the Async Log Handler Identifier Information

   The name property sets the unique identifier for this log handler.

   <async-handler name="Async_NFS_handlers">
   

   Copy to Clipboard Toggle word wrap

2. Set the level Property

   The level property sets the maximum level of log message that the root logger records.

   <async-handler name="Async_NFS_handlers">
      <level name="INFO"/>
   

   Copy to Clipboard Toggle word wrap

3. Define the queue-length

   The queue-length defines the maximum number of log messages that will be held by this handler while waiting for sub-handlers to respond.

   <async-handler name="Async_NFS_handlers">
      <level name="INFO"/>
      <queue-length value="512"/>
   

   Copy to Clipboard Toggle word wrap

4. Set Overflow Response

   The overflow-action defines how this handler responds when its queue length is exceeded. This can be set to BLOCK or DISCARD. BLOCK makes the logging application wait until there is available space in the queue. This is the same behavior as an non-async log handler. DISCARD allows the logging application to continue but the log message is deleted.

   <async-handler name="Async_NFS_handlers">
      <level name="INFO"/>
      <queue-length value="512"/>
      <overflow-action value="block"/>
   

   Copy to Clipboard Toggle word wrap

5. List subhandlers

   The subhandlers list is the list of log handlers to which this async handler passes its log messages.

   <async-handler name="Async_NFS_handlers">
      <level name="INFO"/>
      <queue-length value="512"/>
      <overflow-action value="block"/>
      <subhandlers>
         <handler name="FILE"/>
         <handler name="accounts-record"/>
      </subhandlers>
   </async-handler>
   

   Copy to Clipboard Toggle word wrap