Jenkins change log timestamp to 24 hour format

Jenkinslogging

By default, Jenkins' main log contains timestamps like the following:

Sep 26, 2014 7:03:00 PM hudson.triggers.SCMTrigger$Runner run
INFO: SCM changes detected in main-web-flow. Triggering  #613

I would prefer the time to be in 24-hour format, which is more readable (especially as my Jenkins Master is in a different time zone to myself). How/Where do I change this?

Best Answer

You need to pass the java.util.logging.SimpleFormatter.format property to the jvm running jenkins, which is using java.util.loggin, like in (for YYYY-mm-dd):

java -Djava.util.logging.SimpleFormatter.format="[%1$Tf] %4$s: %2$s - %5$s %6$s%n"

You can find documentation on how to build the format string in the javadocs; while 1$, 2$,... are placeholders for the values passed in to the logger.

Related Solutions

Unix Timestamp in Apache Combined Log

Apache Module mod_log_config:

%{format}t  The time, in the form given by format, which should be in strftime(3) format. (potentially localized)

Example:

    LogFormat "%v %h %l %u %{%s}t \"%r\" %>s %b" vhost_common
    CustomLog /var/log/test vhost_common

Log:

127.0.1.1 127.0.0.1 - - 1309405372 "GET / HTTP/1.0" 200 177

Linux – How to add a timestamp to bash script log

You can pipe the script's output through a loop that prefixes the current date and time:

./script.sh | while IFS= read -r line; do printf '%s %s\n' "$(date)" "$line"; done >>/var/log/logfile

If you'll be using this a lot, it's easy to make a bash function to handle the loop:

adddate() {
    while IFS= read -r line; do
        printf '%s %s\n' "$(date)" "$line";
    done
}

./thisscript.sh | adddate >>/var/log/logfile
./thatscript.sh | adddate >>/var/log/logfile
./theotherscript.sh | adddate >>/var/log/logfile

Best Answer

Related Solutions

Unix Timestamp in Apache Combined Log

Linux – How to add a timestamp to bash script log

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