Oh yes, apologies... I did some edits to simplify my config file and
accidentally changed $ to %. It is correct in the file. I tried
${date:yyyy-MM-dd} and it works. I'll read up on what "date:" is.
Thank you,
Laurent
-----Original Message-----
From: Ralph Goers [mailto:ralph.go...@dslextreme.com]
Sent: Saturday, February 24, 2018 18:41
To: Log4J Users List <log4j-user@logging.apache.org>
Subject: Re: Parametrizing file names with start date of process
First, you are referring to the variable as %{now} when it should be ${now}.
Second, all that is going to do is replace ${now} in the file name with
%d{yyyy-MM-dd} which will then be resolved when the file is created.
I would suggest defining now as ${date:yyyy-MM-dd}
Ralph
> On Feb 24, 2018, at 12:13 PM, Laurent Hasson <l...@capsicohealth.com> wrote:
>
> Hello,
>
> I'd like to parametrize my log file names with the start date of the process.
> This makes it easier for us to see after the facts in the logs if a server
> was restarted etc...
>
> The approach I took was the following:
> <Properties>
> <Property
> name="log-path">C:\CAPSICO\_Stand_Alone_Runtime_\logs\</Property>
> <Property name="now">%d{yyyy-MM-dd}</Property>
> </Properties>
> <Appenders>
> <RollingFile name="FILES" fileName="${log-path}/capsico.%{now}.log"
> filePattern="${log-path}/capsico. %{now}.%i.log.gz">
> <PatternLayout>
> <pattern>%d{MMdd.HHmmss.SSS}#%-3t %level{length=1} %15.15c{1}|
> %m%ex{20}%n</pattern>
> </PatternLayout>
> <Policies>
> <SizeBasedTriggeringPolicy size="100 MB" />
> </Policies>
> <DefaultRolloverStrategy max="99999" compressionLevel="9"/>
> </RollingFile> </Appenders>
>
> My thinking is that ${now} would be resolved when the system starts, and then
> I could use the value in the file names. But the filenames print '${now}'
> directly.
>
> Any help would be much appreciated.
>
> Thank you,
> Laurent.
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