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Mark Bowman commented on LOG4J2-1628: ------------------------------------- Just to be clear the problem is not out-of-order messages, it is messages scrambled (presumably) due to simultaneous file access. For example, the second message below has lost the first few dozen characters {noformat} 2016-10-04 23:49:02.741 INFO: org.lcogt.jTCS.jTpoint.TpointAgent: org.lcogt.jTCS.jTpoint.TpointAgent: Setting pier adjustment: Lower tail-fixator:0.4mm, Shift front-rail East:0.6mm | {"observatory":"aqwa","path":"0m4a.aqwa.lsc","agent":"Tpoint","site":"lsc","telescope":"0m4a"} viour: Exposure time is 10.0 and exp time factor 1.0 | {"observatory":"domc","path":"ef08","site":"lsc","agent":"ef08","tracking_num":"0000238128","request_num":"0000795735","molecule_id":"236030862","telescope":"1m0a","block_id":"95121483"} {noformat} > File locking regression for Async FileAppender > ---------------------------------------------- > > Key: LOG4J2-1628 > URL: https://issues.apache.org/jira/browse/LOG4J2-1628 > Project: Log4j 2 > Issue Type: Bug > Components: Appenders > Affects Versions: 2.6.2 > Environment: centos > Reporter: Mark Bowman > > We have several threads writing to an async file with locking set to true. > Under log4j 2.5 the message from each thread are interleaved correctly. Using > log4j 2.6.2 some messages are scrambled as if multiple threads are writing to > the file simultaneously. Reverting to 2.5 fixes the problem. > Configuration to follow. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: log4j-dev-unsubscr...@logging.apache.org For additional commands, e-mail: log4j-dev-h...@logging.apache.org