[logback-dev] logback is overwriting the log file in the wrong appender

Stefanus Arvin Stefanus.Arvin at objectconsulting.com.au
Fri Apr 26 11:51:13 CEST 2013

Hi There,

Just want to iterate what I've mention in Jira: LOGBACK-847<http://jira.qos.ch/browse/LOGBACK-847>

I found an issue when I'm running it under the load:

I'm running the logback under the log using the log4j adapter.
in the log4j.xml, I setup the logging with async appender which would write to fileRolling appender that would roll every hour.

During the load, I found that I missed 1 hour worth of logging.
When I look at the file, the new coming log file were actually overwritten the previously written log.



On the load

Normal behaviour


Wring the file at 23/4/2013 from 17.00-17:59

I could not find the log at 23/4/2013 from 16.00-16:59

Wring the file at 23/4/2013 from 16.00-16:59


Wring the file at 23/4/2013 from 18.00-18:59

Wring the file at 23/4/2013 from 17.00-17:59

I'm using the following stack to run logback:
§  jcl-over-slf4j-1.7.5
§  log4j-over-slf4j-1.7.5
§  jul-to-slf4j-1.7.5
§  logback-classic-1.0.11
§  logback-core-1.0.11

Note that it's behaving normal if it's not under the load.

I'm not sure if this is a bug in logback async or in the log4j adapter.

Appreciate if someone can help me investigate this issue.



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