I promise with log4j, even under this high concurrency, the rotation is
perfect. This is the config:
<appender name="ASYNC_ACCESS" class="org.apache.log4j.AsyncAppender">
<param name="bufferSize" value="256"/>
<appender-ref ref="ACCESS_LOG"/>
</appender>
<!-- ACCESS LOG -->
<appender name="ACCESS_LOG"
class="org.apache.log4j.rolling.RollingFileAppender">
<param name="append" value="true" />
<param name="encoding" value="ISO-8859-1"/>
<param name="threshold" value="INFO"/>
<param name="immediateFlush" value="false"/>
<param name="bufferedIO" value="true"/>
<param name="bufferSize" value="8192"/>
<rollingPolicy
class="org.apache.log4j.rolling.TimeBasedRollingPolicy">
<param name="fileNamePattern"
value="${log.dir}vproxy_access.%d{yyyy-MM-dd}" />
</rollingPolicy>
<layout class="org.apache.log4j.PatternLayout">
<param name="conversionPattern" value="%m%d{yyyy-MM-dd
HH:mm:ss.SSS}%n"/>
</layout>
</appender>
<logger name="LOGGER_ACCESS" additivity="false">
<level value="info"/>
<appender-ref ref="ASYNC_ACCESS"/>
</logger>
-----Mensaje original-----
De: Ralph Goers [mailto:[email protected]]
Enviado el: viernes, 24 de agosto de 2018 21:31
Para: Log4J Users List
Asunto: Re: Problem with daily rotation on log4j2 RollingFile
It is surprising to me that it would have been any different in Log4j. I
believe it used similar logic for rolling over. I’d have to look at the code
and check though.
Ralph
> On Aug 24, 2018, at 11:32 AM, Joan Balagueró - ventusproxy
> <[email protected]> wrote:
>
> Ok Ralph, understood. With log4j worked, but I suppose that now the
> implementation is completely different.
> Just one more thing, I see you say performance in RollingRandomFile is
> 20-200% better than RollingRandom. So, in what cases is it better to use
> RollingFile instead of RollingRandomFile? I understand that with such a high
> concurrency I have it's better to use RollingRandomFile.
>
> Thanks,
> Joan.
>
> -----Mensaje original-----
> De: Ralph Goers [mailto:[email protected]]
> Enviado el: viernes, 24 de agosto de 2018 19:18
> Para: Log4J Users List
> Asunto: Re: Problem with daily rotation on log4j2 RollingFile
>
> The TimeBasedTriggeringPolicy does not check for rollover on every log event
> to reduce the overhead on busy systems. When you are only logging a few
> events you will see it log a few records to the prior file before it checks
> for a rollover. In your case you would be better off using the
> CronTriggeringPolicy as it has a background thread that checks for the time
> to rollover.
>
> Ralph
>
>> On Aug 24, 2018, at 9:30 AM, Joan Balagueró - ventusproxy
>> <[email protected]> wrote:
>>
>> Hello,
>>
>>
>>
>> I知 using RollingFileAppender with full async logging. This is the config:
>>
>>
>>
>> <Appenders>
>>
>> <RollingFile name="ACCESS_LOG"
>> filePattern="${sys:log.dir}vproxy_access.%d{yyyy-MM-dd}" append="true"
>> immediateFlush="false">
>>
>> <PatternLayout>
>>
>> <Pattern>%m%d{yyyy-MM-dd HH:mm:ss.SSS}%n</Pattern>
>>
>> </PatternLayout>
>>
>> <Policies>
>>
>> <TimeBasedTriggeringPolicy/>
>>
>> </Policies>
>>
>> </RollingFile>
>>
>> <Appenders>
>>
>>
>>
>> <Loggers>
>>
>> <Root level="off" additivity="false" />
>>
>> <Logger name="LOGGER_ACCESS" level="info" includeLocation="false"
>> additivity="false">
>>
>> <AppenderRef ref="ACCESS_LOG"/>
>>
>> </Logger>
>>
>> </Loggers>
>>
>>
>>
>>
>>
>> I started to send requests the 2018-08-22, the
>> vproxy_access.2018-08-22 was correctly created and requests started
>> to be logged. These are the first 2
>> lines:
>>
>> 1,192.168.1.248,2018-08-22
>> 18:11:30.171,A,13,A,40,A,72,A,60,N,,192.168.1.248:80,gzip,80616,329,2
>> 5
>> 37,202
>> ,ok,2018-08-22 18:11:30.735
>>
>> 1,192.168.1.248,2018-08-22
>> 18:11:30.171,A,13,A,39,A,72,A,60,N,,192.168.1.248:80,gzip,140160,328,
>> 4
>> 071,45
>> 2,ok,2018-08-22 18:11:30.744
>>
>>
>>
>> Then I stopped to send requests until 2018-08-24 12:25. The point is
>> these requests (sent today, day 24) have been logged on the same
>> file, 2018-08-22, instead of in a newly created log file 2018-08-24.
>> This is the moment (2 lines before, and the first 2 lines today):
>>
>> 1,192.168.1.248,2018-08-22
>> 18:59:23.415,A,13,A,39,A,72,A,60,N,,192.168.1.248:80,gzip,28236,329,1
>> 2
>> 12,121
>> ,ok,2018-08-22 18:59:23.537
>>
>> 1,192.168.1.248,2018-08-22
>> 18:59:23.537,A,13,A,40,A,72,A,60,N,,167.114.89.182:80,gzip,51516,329,
>> 1
>> 802,43
>> 7,ok,2018-08-22 18:59:23.977
>>
>> 1,192.168.1.248,2018-08-24
>> 12:25:42.439,A,13,A,39,A,72,A,60,N,,192.168.1.248:80,gzip,133122,329,
>> 3
>> 903,18
>> ,ok,2018-08-24 12:25:42.466
>>
>> 1,192.168.1.248,2018-08-24
>> 12:25:42.428,A,13,A,40,A,72,A,60,N,,192.168.1.248:80,gzip,205848,329,
>> 5
>> 681,30
>> ,ok,2018-08-24 12:25:42.471
>>
>>
>>
>> Today I致e kept on sending requests, and these are the last 2 lines:
>>
>> 1,192.168.1.248,2018-08-24
>> 23:59:58.851,A,13,A,40,A,72,A,60,N,,192.168.1.248:80,gzip,99240,329,3
>> 0
>> 20,472
>> ,ok,2018-08-24 23:59:59.326
>>
>> 1,192.168.1.248,2018-08-24
>> 23:59:59.326,A,13,A,41,A,72,A,60,N,,167.114.89.182:80,gzip,34056,327,
>> 1
>> 358,46
>> 7,ok,2018-08-24 23:59:59.795
>>
>>
>>
>> At 00:00 rotation is performed, this is the new log file (it痴 correct):
>>
>> 1,192.168.1.248,2018-08-24
>> 23:59:59.796,A,13,A,40,A,72,A,60,N,,192.168.1.248:80,gzip,27072,329,1
>> 1
>> 86,392
>> ,ok,2018-08-25 00:00:00.189
>>
>> 1,192.168.1.248,2018-08-25
>> 00:00:00.190,A,13,A,41,A,72,A,60,N,,167.114.89.182:80,gzip,82944,327,
>> 2
>> 597,48
>> 7,ok,2018-08-25 00:00:00.680
>>
>> 1,192.168.1.248,2018-08-25
>> 00:00:00.681,A,13,A,41,A,72,A,60,N,,192.168.1.248:80,,2700,326,0,256,
>> o
>> k,2018
>> -08-25 00:00:00.937
>>
>>
>>
>> But the problem is this log file has been created as 2018-08-24
>> instead of 2018-08-25.
>>
>>
>>
>> These are my 2 log files:
>>
>> -rw-r-----. 1 root root 4382871 Aug 24 23:59
>> vproxy_access.2018-08-22
>>
>> -rw-r-----. 1 root root 16224 Aug 25 00:00
>> vproxy_access.2018-08-24
>>
>>
>>
>> And this is the system date now:
>>
>> [root@server02 logs]# date
>>
>> Sat Aug 25 00:17:37 EDT 2018
>>
>>
>>
>>
>>
>> So at this point I知 not sure if this is a bug or I simply has
>> something misconfigured in my log4j.xml
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Joan.
>>
>>
>>
>
>
>
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