[log4j] DailyRollingFileAppender

[Chris Daq]

Hello.

I need little help with log4j. I have application that uses log4j to write logs to files. I want to create a new log file with date every time Tomcat is restarted. I've tried something like this:

log4j.appender.R=org.apache.log4j.DailyRollingFileAppender
log4j.appender.R.DatePattern='-'yyyy.MM.dd-hh'.log'
log4j.appender.R.File=./logs/log
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%d %-5p (%15F:%L) %3x - %m (%c)%n

but it creates file every hour. Please help


Thanks,
Chris Daq

[Pallu Sagar]

Hello instead of using date pattern as "'.'yyyy-MM-dd-HH" use "'.'yyyy-MM-dd".

[Chris Daq]

Hi, thanks for the reply Pallu.

But I'm affraid that is not what I want. I need configuration that will create file every time server is restarted. So what if I restart server 4 times a day? "yyyy-MM-dd" pattern will create only one file and in that particular example I want 4 files with names like: log-2009.12.08-12.34.log, log-2009.12.08-13.44.log, log-2009.12.08-14.50.log and log-2009.12.08-17.20.log. If someone have a different solution please post.

Thanks,
Chris Daq

[Tanzy Akhtar]

Hi Chris,

You may extend DailyRollingFileAppender and modify as per your need.

But for the same what i did, created a folder with current time stamp and moved the log file into that folder.
Hope, this will resolve the problem of loosing time of log creation.

Thanks,
Tanzy.

[Jaikiran Pai]

Chris Daq wrote:I need configuration that will create file every time server is restarted. So what if I restart server 4 times a day? "yyyy-MM-dd" pattern will create only one file and in that particular example I want 4 files with names like: log-2009.12.08-12.34.log, log-2009.12.08-13.44.log, log-2009.12.08-14.50.log and log-2009.12.08-17.20.log.

So you don't actually need a rolling appender. What you probably need is a FileAppender (or some custom version of it) with "Append" property set to false (so that every restart generates a new file) and with a dynamic initial file name (so that the file name has the timestamp appended to it).

[Chris Daq]

Thanks for help. Appreciate it.


Chris Daq