Hi Ceki,

I reproduced the problem in a dev environment (setting the maxfilesize to 1MB), There are several instances of a NullPointerException like the one shown below.

Enabled debug in one of the pro machines but haven't seen the error yet, however I suspect the problem should be the same.

I believe is important to mention that we are logging very large strings sometimes larger than 40K.

Thanks,

Rolando

5/24/13 11:01:20:636 CST] 00001e2a SystemOut O 11:01:20,635 |-ERROR in ch.qos.logback.core.rolling.RollingFileAppender[mop] - Appender [mop] failed to append. java.lang.NullPoi

nterException

at java.lang.NullPointerException

at at ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy.isTriggeringEvent(SizeBasedTriggeringPolicy.java:59)

at at ch.qos.logback.core.rolling.RollingFileAppender.subAppend(RollingFileAppender.java:143)

at at ch.qos.logback.core.OutputStreamAppender.append(OutputStreamAppender.java:103)

at at ch.qos.logback.core.UnsynchronizedAppenderBase.doAppend(UnsynchronizedAppenderBase.java:88)

at at ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:48)

at at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:280)

at at ch.qos.logback.classic.Logger.callAppenders(Logger.java:267)

at at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:449)

at at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:403)

at at ch.qos.logback.classic.Logger.info(Logger.java:607)

at at bizservices_notification.BizServicesReceiveStatusNotification20100310T231159EntityAbstractBase$JSE_10.execute(BizServicesReceiveStatusNotification20100310T231159E

ntityAbstractBase.java:129)

at at com.ibm.bpe.framework.ProcessBase6.executeJavaSnippet(ProcessBase6.java:330)

On Fri, May 24, 2013 at 10:26 AM, ceki <ceki@qos.ch> wrote:

Hi Rolando,

Thank you for posting your logback.xml file. I suspect that for some
reason logback is unable to rename some of the archives.

In any case, setting the debug attribute to true in <configuration>
element should provide helpful clues as to what is going on during
file rolling. Here is the modified <configuration> element:

<configuration debug="true" scan="true">
...
</configuration>

Please post the status messages on this list.

On 24.05.2013 17:53, Rolando Segura wrote:

Hi David,
Configuration is below. I'm also showing the sizes of the log files,
you'll notice that some of them have sizes much larger to what is
specified with the MaxFileSize parameter of the triggering policy.

Thanks,
Rolando

$ ls -l /opt/log/mop.log*
-rw-r--r-- 1 wps wps 13366643 May 24 09:47 /opt/log/mop.log
-rw-r--r-- 1 wps wps 67121376 May 24 09:16 /opt/log/mop.log.1
-rw-r--r-- 1 wps wps 849229334 May 24 09:47 /opt/log/mop.log.10
-rw-r--r-- 1 wps wps 67116193 May 23 23:16 /opt/log/mop.log.2
-rw-r--r-- 1 wps wps 67114690 May 23 19:54 /opt/log/mop.log.3
-rw-r--r-- 1 wps wps 31160111 May 24 09:47 /opt/log/mop.log.4
-rw-r--r-- 1 wps wps 67110076 May 23 17:09 /opt/log/mop.log.5
-rw-r--r-- 1 wps wps 67115644 May 23 11:38 /opt/log/mop.log.6
-rw-r--r-- 1 wps wps 67121760 May 23 00:31 /opt/log/mop.log.7
-rw-r--r-- 1 wps wps 29536505 May 23 17:09 /opt/log/mop.log.8
-rw-r--r-- 1 wps wps 2053363264 May 24 09:47 /opt/log/mop.log.9

$ ls -l /opt/log/mop.nocr*
-rw-r--r-- 1 wps wps 25664997 May 24 09:47 /opt/log/mop.nocrlf.log
-rw-r--r-- 1 wps wps 991283661 May 24 09:47 /opt/log/mop.nocrlf.log.1

$ cat logback.xml
<?xml version="1.0" encoding="UTF-8"?>








<configuration scan="true">
<appender name="SYSLOG"
class="ch.qos.logback.classic.net.SyslogAppender">
<syslogHost>localhost</syslogHost>
<facility>LOCAL7</facility>
<suffixPattern>%d{ISO8601} %5p [%t] $%logger$ -
%replace(%m){'\n',''}</suffixPattern>
</appender>
<appender name="mop"
class="ch.qos.logback.core.rolling.RollingFileAppender">

<File>/opt/log/mop.log</File>
<encoder>
<pattern>%d{ISO8601} %5p [%t] $%logger$ - %m%n</pattern>
</encoder>
<rollingPolicy
class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<maxIndex>10</maxIndex>
<FileNamePattern>/opt/log/mop.log.%i</FileNamePattern>
</rollingPolicy>
<triggeringPolicy
class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<MaxFileSize>64MB</MaxFileSize>
</triggeringPolicy>
</appender>
<appender name="mopnocrlf"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<File>/opt/log/mop.nocrlf.log</File>
<encoder>
<pattern>[%d{ISO8601}] %5p [%t] $%logger$ -
%replace(%m){'\r?\n',''}%n</pattern>
</encoder>
<rollingPolicy
class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<maxIndex>1</maxIndex>
<FileNamePattern>/opt/log/mop.nocrlf.log.%i</FileNamePattern>
</rollingPolicy>
<triggeringPolicy
class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<MaxFileSize>32MB</MaxFileSize>
</triggeringPolicy>
</appender>
<appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%5p [%t] $%logger$ - %m%n</pattern>
</encoder>
</appender>
<logger name="mop" level="debug">
<appender-ref ref="mop"/>
<appender-ref ref="mopnocrlf"/>
</logger>
<root level="fatal">
<appender-ref ref="stdout"/>
</root>
</configuration>

On Fri, May 24, 2013 at 7:21 AM, David Roussel
<nabble@diroussel.xsmail.com <mailto:nabble@diroussel.xsmail.com>> wrote:

Roland,

That sounds strange. Can you post your logback.xml file?

David

On 23 May 2013, at 00:03, Rolando Segura <rolandosegura@gmail.com
<mailto:rolandosegura@gmail.com>> wrote:

> Hi I have an RollingFileAppender with a triggering policy of
rotating by size when the log reaches 32MB and a maxIndex of 1,
configuration below.
> It happens that after rotation logback keeps writing to both
files. Is this expected? My understanding from documentation is that
it will stop writing to the current log, rename it and starts
writing a to a new file with the name of the File parameter.
>
> I'd appreciate your clarification if I'm not understanding well
the RollingFileAppender and SizeBasedTriggering behavior.
>
> Thanks,
> Rolando
>
>
>
> <appender name="lognocrlf"
class="ch.qos.logback.core.rolling.RollingFileAppender">
> <File>/opt/log/file.nocrlf.log</File>
> <encoder>
> <pattern>[%d{ISO8601}] %5p [%t] $%logger$ -
%replace(%m){'\r?\n',''}%n</pattern>
> </encoder>
> <rollingPolicy
class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
> <maxIndex>1</maxIndex>
> <FileNamePattern>/opt/log/file.nocrlf.log.%i</FileNamePattern>
> </rollingPolicy>
> <triggeringPolicy
class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
> <MaxFileSize>32MB</MaxFileSize>
> </triggeringPolicy>
> </appender>
>

--
Ceki
65% of statistics are made up on the spot

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