[logback-user] What is the unit of maxHistory of TimeBasedRollingPolicy , day or month????

Jeff Jensen jjensen at apache.org
Thu Sep 15 15:50:45 CEST 2011


> Do you read the mail title??????????

Do you read the docs and try to understand replies given to you?


> The number is for day. Or it is for month????

It depends on the value of *fileNamePattern*; if set for monthly rollover,
it's monthly.  If daily rollover, it's daily.  So "It's always the number of
elapsed periods."  and "Neither, it's the max number of files kept."
accurately answer your question.

You need to read the doc here:
" The optional maxHistory property controls the maximum number of archive
files to keep, deleting older files.* For example, if you specify monthly
rollover, and set maxHistory to 6, then 6 months worth of archives files
will be kept* with files older than 6 months deleted. Note as old archived
log files are removed, any folders which were created for the purpose of log
file archiving will be removed as appropriate. "


On Thu, Sep 15, 2011 at 8:41 AM, zuxiong lin <linzuxiong1988 at gmail.com>wrote:

> The number is for day. Or it is for month????
>
>
> 2011/9/15 Ceki Gülcü <ceki at qos.ch>
>
>> It's always the number of elapsed periods.
>>
>>
>> On 14/09/2011 7:20 PM, Daniel Serodio (lists) wrote:
>>
>>> Neither, it's the max number of files kept.
>>>
>>> Regards,
>>> Daniel Serodio
>>>
>>> zuxiong lin wrote:
>>>
>>>> Ref : http://logback.qos.ch/manual/**appenders.html<http://logback.qos.ch/manual/appenders.html>
>>>>
>>>> I am a bit confused.
>>>>
>>>> Thanks!
>>>>
>>>
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>
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