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From Marc Farrow <marc.far...@gmail.com>
Subject RE: DailyRollingAppender - How does it know when to rollover?
Date Mon, 11 May 2009 13:48:46 GMT

I haven't done this because my brain is too one-dimensional today.  Great
suggestion.

Thanks.

Marc



Matt Brown-20 wrote:
> 
> 
> Just a suggestion, but if this is a development server, and the
> application is already getting re-deployed more than daily, why not
> experiment with a smaller rollover time (daily or hourly)? Just to make
> sure that DailyRollingAppender isn't somehow borked in your combination of
> OS / app server / application.
> 
> -----Original Message-----
> From: Marc Farrow [mailto:marc.farrow@gmail.com] 
> Sent: Monday, May 11, 2009 8:34 AM
> To: log4j-user@logging.apache.org
> Subject: Re: DailyRollingAppender - How does it know when to rollover?
> 
> 
> I checked the log file for my container (Tomcat) and there were no error
> messages that I could see for any rollover messages.  However, I guess I
> am going to have to wait til next month to verify.  Since my container is
> Tomcat and my container gets restarted fairly often (multiple times a day
> because this is a our development server), could this affect the rollover
> logic?
> 
> Thank you,
> 
> Marc 
> 
> 
> 
> Paul Smith-2 wrote:
>> 
>> the first logging event _after_ the time period computed should roll 
>> the file over, however if there is any failure (perhaps because 
>> another process has the file handle open, a common problem on 
>> Windows), the rollover can fail, and you'll need to wait to the next 
>> window (another month).
>> 
>> When the failure occurs, it does log to StdErr (from the source code 
>> to DailyRollingFileAppender):
>> 
>>    protected void subAppend(LoggingEvent event) {
>>        long n = System.currentTimeMillis();
>>        if (n >= nextCheck) {
>>            now.setTime(n);
>>            nextCheck = rc.getNextCheckMillis(now);
>>            try {
>>                rollOver();
>>            }
>>            catch(IOException ioe) {
>>                if (ioe instanceof InterruptedIOException) {
>>                    Thread.currentThread().interrupt();
>>                }
>>                LogLog.error("rollOver() failed.", ioe);
>>            }
>>        }
>>        super.subAppend(event);
>>    }
>> 
>> It tries it's best to continue logging until next roll over period.
>> 
>> Paul
>> 
>> On 11/05/2009, at 9:31 PM, Marc Farrow wrote:
>> 
>>>
>>> This is a fairly simple question.  Does anyone that maintains or 
>>> create LOG4J read these posts anymore?
>>>
>>> Thanks.
>>>
>>> --
>>> View this message in context:
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>>> -rollover--tp23390773p23481523.html
>>> Sent from the Log4j - Users mailing list archive at Nabble.com.
>>>
>>>
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>>>
>> 
>> Paul Smith
>> Production Engineering Manager
>> 
>> Aconex
>> The easy way to save time and money on your project
>> 
>> 696 Bourke Street, Melbourne,
>> VIC 3000, Australia
>> Tel: +61 3 9240 0200  Fax: +61 3 9240 0299
>> Email: psmith@aconex.com  www.aconex.com
>> 
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>> 
>> 
>> 
>> 
>> 
>> 
> 
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> Sent from the Log4j - Users mailing list archive at Nabble.com.
> 
> 
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> 
> 

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