[logback-user] logback-1.0.3 - Rolled over log file was overwritten instead of incremented

[Stephan Olbertz]

Hi,

as it says in the title, I use logback 1.0.3 and I encountered a problem 
last night.

My application was started in two separate instances and it was logging 
alright. 
I have it set up to do a rollover on midnight and when the file reaches a 
certain size.

On 00:38 a rollover happened initiated by one of the instances to file "
osail.2012-06-18.0.log"and I assume it went through alright.
But, on 00:58 the second instance was done and it also initiated a 
rollover and it also rolled over to file "osail.2012-06-18.0.log". 
Overwriting the first file.

I assumed it would have switched to file "osail.2012-06-18.1.log" but that 
was not the case? Can any body help me out, here?

For reference, this is my logback.xml:

<configuration debug="true">
        <property name="LOGS.DIR" value=
"/nfs/us08/rm_info/protex_scan/logs" />
 
        <appender name="FILE" class=
"ch.qos.logback.core.rolling.RollingFileAppender">
 
                <file>${LOGS.DIR}/osail.log</file> <!-- Ignored if prudent 
true -->
                <append>true</append>
 
        <rollingPolicy class=
"ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <!-- daily rollover -->
                <fileNamePattern>${LOGS.DIR}/osail.%d{yyyy-MM-dd}.%i.log</
fileNamePattern>

                <timeBasedFileNamingAndTriggeringPolicy class=
"ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                        <!-- or whenever the file size reaches 3MB -->
                        <maxFileSize>3MB</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
 
                <!-- keep 5 days' worth of history -->
                <maxHistory>5</maxHistory>
        </rollingPolicy>
 
                <!-- encoders are assigned the type 
ch.qos.logback.classic.encoder.PatternLayoutEncoder by default -->
                <encoder>
                        <!-- <pattern>%-4relative [%thread] %-5level 
%logger{35} - %msg%n</pattern>-->
                        <pattern>%d [%thread] %-5level %logger{36} - 
%msg%n</pattern>
                </encoder>
 
        </appender>
 
        <root level="DEBUG">
                <appender-ref ref="FILE" />
        </root>

</configuration>

Best regards,
Stephan

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