[jira] [Commented] (LOG4J2-1760) AsyncAppender with LinkedTransferQueue.offer()

["Addison Walterson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LOG4J2-1760?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15849017#comment-15849017 ] 

Addison Walterson commented on LOG4J2-1760:
-------------------------------------------

The buffer size of the asynchronous appender can be specified by the user (parameter bufferSize). The manual states that when using the LinkedTransferQueue the bufferSize cannot be specified because the LinkedTransferQueue does not support a maximum capacity. I had expected the buffer to be unlimited but instead it is 0. No message at all will stored in the LinkedTransferQueue because tryTransfer() is used to enqueue messages. I think it would be a good thing to allow storing messages in the LinkedTransferQueue because this would mean that the asynchronous appender is still used when multiple messages are logged at about the same time.

> AsyncAppender with LinkedTransferQueue.offer()
> ----------------------------------------------
>
>                 Key: LOG4J2-1760
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-1760
>             Project: Log4j 2
>          Issue Type: Improvement
>          Components: Appenders
>    Affects Versions: 2.7
>            Reporter: Addison Walterson
>            Priority: Minor
>
> I suggest that the AsyncAppender can use a LinkedTransferQueue for which offer() is used to enqueue messages because tryTransfer() only succeeds if the receiving thread waits for a message which means that the queue has length 0.



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