[logback-user] Rolling files on Android

[Chris Kelly]

Tony,

In my case, the time based rolling is working, but the rolling stops all together when I add the size based triggering policy to the rolling appender.
I'm sure my understanding of the various classes is to blame, but I would expect to be able to create and set a simple SizeBasedTriggeringPolicy that would work
in parallel with the timeBasedRollingPolicy like in your example. I added the status listener as mentioned below and don't see any messages that correlate to the size trigger.
The messages that I do see about the time and file name pattern look correct.

Since yesterday I was able to get this working by using a SizeAndTimeBasedFNATP and setting it like rollingPolicy.setTimeBasedFileNamingAndTriggeringPolicy(stFNATP);
Is this the accepted approach to get simple roll-over each day with an additional max file size property?

On Dec 6, 2014, at 5:29 PM, Tony Trinh <tony19 at gmail.com> wrote:

> Chris,
> 
> To help troubleshoot rollover issues, you can enable logback debug statements with:
> 
>            LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
> 
>         // Enable debugging to show rollover status
>         OnConsoleStatusListener.addNewInstanceToContext(context);
> 
> This will print any status messages when logback attempts to rollover the file.
> 
> See the working example that demonstrates the RollingFileAppender:
> https://github.com/tony19/logback-examples/blob/master/logback-android/rolling-file-appender/app/src/main/java/com/github/tony19/rollingfileappender/MainActivity.java#L93
> 
> Tony
> 
> 
> On Tue, Dec 2, 2014 at 5:48 PM, Chris Kelly <chris at thursby.com> wrote:
> I've gone through a bit of trial and error, and have not been able to get logs to roll over, no matter how aggressively I set up triggering and rolling policies.
> My intent is to have daily logs with a max size all configured in code, thus no assets/logback.xml.
> 
> I've enabled debugging and the only status message is (which I would expect):
>         I/System.out﹕ 17:37:13,194 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [assets/logback.xml]
> 
> In a nutshell I have the TimeBasedRollingPolicy set up to use a file as
>         rollingPolicy.setFileNamePattern(ctx.getCacheDir().getAbsolutePath() + File.separator + "logs" + File.separator + name +".%d{yyyy-MM-dd_HH}.log"); // exprimenting with hourly
> and the size based triggering at 25k like
>         sizeTriggerPolicy.setMaxFileSize("25KB");
> 
> I then set these to the rollingFileAppender, set up a pattern encoder and add it, then start the appender.
> I can see the messages in my log file as expected, but it continues to grow well past the max size and past any time based trigger (even while log events continue).
> 
> Any suggestions?
> 
> Thanks,
> Chris
> 
> 
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