logging-log4j-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Manuel Teira <manuel.te...@gmail.com>
Subject Re: Compressing only old rollover files
Date Thu, 10 Apr 2014 06:47:29 GMT
That's exactly my fear regarding mixing the framework with external tools.
This seems an issue related to buffering though.

I'm wondering if it would be possible to avoid any of these problems by
choosing date based rollover names. Let's say that I pick the following
setup:
- Trigger rollover after 20Mb
- Trigger rollover every day
- Name the rollover files based on the date app.${yyyy-MM-dd}.log
- Maximum 10 rollover files

So, I understand the rollover will happen in case the log exceeds 20 Mb in
size and also after 00:00.
Is log4j-2 in this scenario able to keep only the last 10 rollover files?
How does it figure out what files should be removed?
What would happen if an external tool is compressing (and renaming) those
rollover files older than a given age? Is that affecting the way log4j-2 is
trying to keep only the 10 more recent rollover files?

Thanks a lot!



2014-04-10 1:33 GMT+02:00 Remko Popma <remko.popma@gmail.com>:

> Be aware you can't combine the RandomAccessFile appenders with logrotate.
> See https://issues.apache.org/jira/browse/LOG4J2-354
>
> Sent from my iPhone
>
> > On 2014/04/10, at 7:58, Matt Sicker <boards@gmail.com> wrote:
> >
> > It sounds like the "delaycompress" option from logrotate:
> > http://linux.die.net/man/8/logrotate
> >
> >
> >> On 9 April 2014 09:46, Ralph Goers <ralph.goers@dslextreme.com> wrote:
> >>
> >> Log4j currently compresses the files when it rolls them over. Of course
> >> you can cause that to happen based on time, but it sounds like you want
> the
> >> time of rollover and time of compression to be separate.  If so, I am
> not
> >> sure you really need to tie the compression activity to Log4j, or at
> least
> >> the appender at all.  You just need something that monitors the
> directory
> >> and looks for files over a certain age and then compresses them, deletes
> >> them, or whatever.
> >>
> >> If I've misunderstood what you are asking please let me know.
> >>
> >> Ralph
> >>
> >>> On Apr 9, 2014, at 12:57 AM, Manuel Teira <manuel.teira@gmail.com>
> wrote:
> >>>
> >>> Hello all,
> >>>
> >>> I'm evaluating a switch to log4j-2 since my application is required to
> >>> rollover files by age and size (for what the composite triggering
> >> policies
> >>> come handy). The rollover files shall also be compressed, but only
> those
> >>> reaching a given age.
> >>>
> >>> What would be the preferred approach to achieve that using log4j-2?
> >> Should
> >>> be reasonable to write a custom rollover strategy or is there any other
> >> way
> >>> out-of-the box that may work?
> >>>
> >>> Thanks and best regards,
> >>>
> >>> Manuel.
> >>
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: log4j-user-unsubscribe@logging.apache.org
> >> For additional commands, e-mail: log4j-user-help@logging.apache.org
> >
> >
> > --
> > Matt Sicker <boards@gmail.com>
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message