[logback-user] problems with TimeBasedRollingPolicy

[Leon Rosenberg]

On Thu, Jun 30, 2011 at 11:44 AM, David Roussel
<nabble at diroussel.xsmail.com> wrote:
> What difference does the creation time of the log file make? Why is it important to you?
>

Hello David,

we have a cron job that copies the work-results from last day aka log
file into a special data warehouse, where its analyzed by a bunch of
analysts ;-)
regards
Leon

> David
>
> On 29 Jun 2011, at 17:17, Leon Rosenberg <rosenberg.leon at gmail.com> wrote:
>
>> Thanx for the reply, David.
>> Is there another, less hackier way to do it?
>> The problem with 'log-a-message' approach, is that this log file only
>> contains events that really happened and is parsed and imported into
>> another reporting tool.
>> So if we start to log a message at 00:01, we have to force the people
>> who write the reporting tool to ignore this special message type etc.
>> I would prefer to keep things simpler, is there a possibility to force
>> logging behavior without actually logging something? Like a log.nop()?
>> ;-)
>>
>> Another possibility we were thinking about was to have a cron job
>> performing touch on the logback.xml, which should also trigger
>> rolling. Or wouldn't it not?
>>
>> Any other ideas?
>>
>> thanx in advance
>> Leon
>>
>> On Tue, Jun 28, 2011 at 3:33 PM, David Roussel
>> <nabble at diroussel.xsmail.com> wrote:
>>> Yes it rolls on the first message. To force rolling, log a message.
>>>
>>> On 28 Jun 2011, at 13:13, Leon Rosenberg <rosenberg.leon at gmail.com> wrote:
>>>
>>>> Hello,
>>>>
>>>> I have following logback rolling file appender configuration:
>>>>
>>>>
>>>>    <appender name="DWHTextToolActionLogger"
>>>>        class="ch.qos.logback.core.rolling.RollingFileAppender">
>>>>        <file>${user.home}/data/inbound/csi/text_approval/xxx_text_approval.csv</file>
>>>>        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
>>>>            <fileNamePattern>${user.home}/data/inbound/csi/text_approval/xxx_text_approval_%d{yyyy_MM_dd}.csv.gz</fileNamePattern>
>>>>            <maxHistory>100</maxHistory>
>>>>        </rollingPolicy>
>>>>        <encoder>
>>>>            <pattern>%m%n</pattern>
>>>>        </encoder>
>>>>    </appender>
>>>>
>>>>    <logger name="DWHTextToolActionLogger" additivity="false">
>>>>        <level value="INFO" />
>>>>        <appender-ref ref="DWHTextToolActionLogger" />
>>>>    </logger>
>>>>
>>>> I would expect the log file to roll nightly, however, I only see
>>>> following files:
>>>>
>>>>
>>>> -rw-r--r-- 1 xxx xxx 236K Jun 28 14:08 xxx_text_approval.csv
>>>> -rw-r--r-- 1 xxx xxx  39K Jun 22 08:21 xxx_text_approval_2011_06_21.csv.gz
>>>> -rw-r--r-- 1 xxx xxx  32K Jun 23 08:18 xxx_text_approval_2011_06_22.csv.gz
>>>> -rw-r--r-- 1 xxx xxx  35K Jun 24 07:52 xxx_text_approval_2011_06_23.csv.gz
>>>> -rw-r--r-- 1 xxx xxx  26K Jun 25 07:43 xxx_text_approval_2011_06_24.csv.gz
>>>> -rw-r--r-- 1 xxx xxx  41K Jun 26 07:50 xxx_text_approval_2011_06_25.csv.gz
>>>> -rw-r--r-- 1 xxx xxx  28K Jun 27 07:44 xxx_text_approval_2011_06_26.csv.gz
>>>> -rw-r--r-- 1 xxx xxx  57K Jun 28 08:12 xxx_text_approval_2011_06_27.csv.gz
>>>>
>>>> Is it misconfigured, or does the rolling actually happens at the first
>>>> log message in the morning?
>>>> If it's action based, how can i configure rolling to be triggered
>>>> @midnight no matter how empty or full the log is?
>>>>
>>>> regards
>>>> Leon
>>>>
>>>> p.s.
>>>> version:
>>>>                             <groupId>ch.qos.logback</groupId>
>>>>                                <artifactId>logback-classic</artifactId>
>>>>                                <version>0.9.28</version>
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