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https://issues.apache.org/jira/browse/LOG4J2-2804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17100127#comment-17100127
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André Pinto commented on LOG4J2-2804:
-------------------------------------
Is there anything specific about hours? I tested it with 45 seconds (so lower
than the smallest time unit window in the file name pattern) and 10MB and got
the same bug with erroneous file names:
{code:java}
-rw-r--r-- 1 andre.pinto staff 10M May 5 18:38
main-2020-05-05-18.39.15-1.log
-rw-r--r-- 1 andre.pinto staff 7.7M May 5 18:39
main-2020-05-05-18.39.15-2.log
-rw-r--r-- 1 andre.pinto staff 10M May 5 18:39
main-2020-05-05-18.40.00-1.log
-rw-r--r-- 1 andre.pinto staff 7.8M May 5 18:40
main-2020-05-05-18.40.00-2.log
-rw-r--r-- 1 andre.pinto staff 10M May 5 18:40
main-2020-05-05-18.40.45-1.log
-rw-r--r-- 1 andre.pinto staff 7.8M May 5 18:40
main-2020-05-05-18.40.45-2.log
-rw-r--r-- 1 andre.pinto staff 10M May 5 18:41
main-2020-05-05-18.41.30-1.log
-rw-r--r-- 1 andre.pinto staff 7.4M May 5 18:41
main-2020-05-05-18.41.30-2.log
-rw-r--r-- 1 andre.pinto staff 2.4M May 5 18:41 main-current.log-active
{code}
config:
{code:java}
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN" name="Mux">
<Properties>
<Property name="LOG_DIR">logs</Property>
</Properties>
<Appenders>
<Console name="Console" target="SYSTEM_OUT"/>
<RollingRandomAccessFile name="main"
fileName="${LOG_DIR}/main-current.log-active"
filePattern="${LOG_DIR}/main-%d{yyyy-MM-dd-HH.mm.ss}-%i.log"
ignoreExceptions="false" immediateFlush="false"
bufferSize="1048576">
<PatternLayout>
<Pattern>%m\n</Pattern>
</PatternLayout>
<Policies>
<SizeBasedTriggeringPolicy size="10 MB" />
<TimeBasedTriggeringPolicy interval="45" />
</Policies>
<DefaultRolloverStrategy fileIndex="nomax" />
</RollingRandomAccessFile>
</Appenders>
<Loggers>
<Root level="OFF">
<AppenderRef ref="Console" />
</Root>
<Logger name="main" level="ALL" additivity="false">
<AppenderRef ref="main"/>
</Logger>
</Loggers>
</Configuration>
{code}
It clearly seems that Log4j's rollovers don't properly support proper file
naming with multiple triggers.
> RollingRandomAccessFile uses wrong time for filename
> ----------------------------------------------------
>
> Key: LOG4J2-2804
> URL: https://issues.apache.org/jira/browse/LOG4J2-2804
> Project: Log4j 2
> Issue Type: Bug
> Components: Appenders
> Affects Versions: 2.13.1
> Reporter: André Pinto
> Priority: Major
>
> When there are both size based and time based triggering policies, if the
> size based policy is triggered, the file is named as if the time based policy
> was triggered.
> Example config:
> {code:java}
> <?xml version="1.0" encoding="UTF-8"?>
> <Configuration status="WARN" name="Mux">
> <Properties>
> <Property name="LOG_DIR">logs</Property>
> </Properties>
> <Appenders>
> <Console name="Console" target="SYSTEM_OUT"/>
> <RollingRandomAccessFile name="main"
> fileName="${LOG_DIR}/main-current.log-active"
>
> filePattern="${LOG_DIR}/main-%d{yyyy-MM-dd-HH.mm.ss}.log"
> ignoreExceptions="false"
> immediateFlush="false"
> bufferSize="1048576">
> <PatternLayout>
> <Pattern>%m\n</Pattern>
> </PatternLayout>
> <Policies>
> <SizeBasedTriggeringPolicy size="256 B" />
> <TimeBasedTriggeringPolicy interval="3600" />
> </Policies>
> <DefaultRolloverStrategy fileIndex="nomax" />
> </RollingRandomAccessFile>
> </Appenders>
> <Loggers>
> <Root level="OFF">
> <AppenderRef ref="Console" />
> </Root>
> <Logger name="main" level="ALL" additivity="false">
> <AppenderRef ref="main"/>
> </Logger>
> </Loggers>
> </Configuration>
> {code}
> With this configuration if I start writing log entries to the "main" logger
> at 2020-03-09 13:00.00 and immediately trigger the SizeBasedTriggeringPolicy
> (256 bytes), the name of the file that is rolled over will be:
> main-2020-03-09-14.00.00
> as if the rollover operation had been triggered by the time policy.
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