Hi, I just tried this with your settings and it worked on my machine. Can your Flink processes write to the specified location? I think /opt might not be writable by your users. Maybe try putting something like /tmp/flink.log there.
Best, Aljoscha > On 9. Aug 2017, at 16:45, Hussein Baghdadi <hussein.baghd...@zalando.de> > wrote: > > Hello, > > We changed our log4j.properties file of our Flink cluster to: > > log4j.appender.file=org.apache.log4j.RollingFileAppender > log4j.appender.file.File=/opt/flink/log/flink.log > log4j.appender.file.MaxFileSize=100MB > log4j.appender.file.MaxBackupIndex=2 > log4j.appender.file.layout=org.apache.log4j.PatternLayout > #log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p > %c{1}:%L - %m%n > log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %-5p > %-60c %x - %m%n > > After deployment, flink.log is empty although the cluster is under usage. > Flink doesn't work with RollingFileAppender or something? Or we > misconfiguring something? > > Thanks for help and time.