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From Fröstl, Christian <christian.froe...@accenture.com>
Subject Re: [External] Re: Log4j2 Async logger fallback method
Date Wed, 03 Jan 2018 08:08:42 GMT
Hi,

Thanks for your response.
Just one question to verify.
In the default configuration, all events of level info, debug and trace will be dropped, if
the ringbuffer is full. For all other events the application will block and if the ringbuffer
has space again, the block will release and the events will be written, right?
That means that only events of type Info, debug and trace could be lost, but none of the higher
levels like error, warn and severe, right?

Kind regards,
Christian

On 22.12.17, 01:53, "Remko Popma" <remko.popma@gmail.com> wrote:

    Yes by default the application thread will block until a slot becomes available in the
queue. 
    
    Yes this is configurable: see https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_apache_logging-2Dlog4j2_blob_master_log4j-2Dcore_src_main_java_org_apache_logging_log4j_core_async_AsyncQueueFullPolicyFactory.java&d=DwIFaQ&c=eIGjsITfXP_y-DLLX0uEHXJvU8nOHrUK8IrwNKOtkVU&r=37nF0SnGtdjmcblOpYG7cKwaPDc1GWo5GNDvnDLF8TE&m=hk-mti7hK6agTdNqpiQVl3gpA4ri4hrn2pxHf_8maIE&s=QykinLq8RJFWq5YIigJq8wWizXFOxKy3DWeXTomCnaM&e=
    
    (Shameless plug) Every java main() method deserves https://urldefense.proofpoint.com/v2/url?u=http-3A__picocli.info&d=DwIFaQ&c=eIGjsITfXP_y-DLLX0uEHXJvU8nOHrUK8IrwNKOtkVU&r=37nF0SnGtdjmcblOpYG7cKwaPDc1GWo5GNDvnDLF8TE&m=hk-mti7hK6agTdNqpiQVl3gpA4ri4hrn2pxHf_8maIE&s=w_w2x7qWvjFgf1pKLN7kb5Q534FwglDl16TI5-OArl4&e=
    
    > On Dec 20, 2017, at 2:03, Fröstl, Christian <christian.froestl@accenture.com>
wrote:
    > 
    > Hi,
    > 
    > I currently don’t find any documentation regarding the fallback methods of the
log4j2 async logger.
    > What happens when the AsyncLogger.RingBufferSize is too small to log all entries
from a burst? Will the application fall back into sync logging and slow down the application
or will the new messages be dropped?
    > Is this a configurable behaviour?
    > 
    > Kind regards,
    > Christian
    > 
    > 
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