https://issues.apache.org/bugzilla/show_bug.cgi?id=49571
Summary: refreshing log4j - reconfigurable from
log4j.properties and safe in J2EE
Product: Log4j
Version: 1.2
Platform: PC
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P2
Component: Configurator
AssignedTo: log4j-dev@logging.apache.org
ReportedBy: tomaszb...@gmail.com
FAQ says:
"Because the configureAndWatch launches a separate wathdog thread, and because
there is no way to stop this thread in log4j 1.2, the configureAndWatch method
is unsafe for use in J2EE envrironments where applications are recycled."
However in HA production J2EE environment it is crucial to have possiblity to
change logging settings (mainly LEVEL) without restarting server.
To simply achieve this:
- add option to configuration file: watchDelay=<miliseconds>
- if watchDelay is declared log4j watches for changes in configuration file.
- skip idea of watchDog and check directly inside calls of logger.debug/info
that there is a need to reload configuration file - by this, it will be 100%
safe in J2EE.
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