Hi Leo, What distribution are you using? Sometimes the log4j.properties is packed inside .jar file, which is picked first, so you need to explicitly give a java option '-Dlog4j.configuration=<path-to-your-log4j-file>' in the corresponding daemon flags.
Alex K On Tue, Sep 28, 2010 at 2:13 PM, Leo Alekseyev <[email protected]> wrote: > I have all of the above in my log4j.properties; every line that > mentions DRFA is commented out. And yet, I still get the following > errors: > > log4j:ERROR Could not find value for key log4j.appender.DRFA > log4j:ERROR Could not instantiate appender named "DRFA". > > Is there another config file?.. Is DRFA hard-coded somewhere?.. > > > > On Mon, Sep 27, 2010 at 5:28 PM, Boris Shkolnik <[email protected]> > wrote: > > log4j.appender.RFA=org.apache.log4j.RollingFileAppender > > log4j.appender.RFA.File=${hadoop.log.dir}/${hadoop.log.file} > > > > log4j.appender.RFA.MaxFileSize=1MB > > log4j.appender.RFA.MaxBackupIndex=30 > > > > hadoop.root.logger=INFO,RFA > > > > > > On 9/27/10 4:12 PM, "Leo Alekseyev" <[email protected]> wrote: > > > > We are looking for ways to prevent Hadoop daemon logs from piling up > > (over time they can reach several tens of GB and become a nuisance). > > Unfortunately, the log4j DRFA class doesn't seem to provide an easy > > way to limit the number of files it creates. I would like to try > > switching to RFA with set MaxFileSize and MaxBackupIndex, since it > > looks like that's going to solve the log accumulation problem, but I > > can't figure out how to change the default logging class for the > > daemons. Can anyone give me some hints on how to do it? > > > > Alternatively, please let me know if there's a better solution to > > control log accumulation. >
