Forgot to mention, my logback.xml says:
file: <dir>/test.log
fileNamePattern: <dir>/test.%d{yyyy-MM-dd}.%d{HHmmssSSS,aux}.log

and rollover happened appropriately for the first time (so I have test.2012-11-08.202336641.log created) and the mentioned error keeps coming continuously thereafter attempting to rename test.log again to test.2012-11-08.202336641.log everytime.

On Thu, Nov 8, 2012 at 9:18 PM, Gaurav Kumar <gaurav419@gmail.com> wrote:

Hi,
I am seeing the following error when rollover happens (this keeps coming continuously on stdout/err):

20:25:38,351 |-WARN in c.q.l.co.rolling.helper.RenameUtil - Failed to rename file [D:\test.log] to [D:\test.2012-11-08.202336641.log].
...
20:25:38,351 |-WARN in ch.qos.logback.core.rolling.helper.SizeAndTimeBasedArchiveRemover@6d3374 - Unexpected periodsElapsed value 0


I am using RollingFileAppender with TimeBasedRollingPolicy and trigger is timeBasedFileNamingAndTriggeringPolicy with  class="MyOwnSizeAndTimeBasedFNATP" defined as:

@NoAutoStart
public class MyOwnSizeAndTimeBasedFNATP<E> extends SizeAndTimeBasedFNATP<E>
{
    private final AtomicBoolean trigger = new AtomicBoolean();

    @Override
    public boolean isTriggeringEvent(final File activeFile, final E event) {
        if (trigger.compareAndSet(false, true) && activeFile.length() > 0) {
            String maxFileSize = getMaxFileSize();
            setMaxFileSize("1");
            super.isTriggeringEvent(activeFile, event);
            setMaxFileSize(maxFileSize);
            return true;
        }

        return super.isTriggeringEvent(activeFile, event);
    }


Any suggestions on what could have gone wrong here? I tried to dig deeper into the logback code to identify the problem. I feel I am somehow entering RollingFileAppender's subAppend() multiple times or violating the synchronised behaviour as mentioned in the comment in the code.

Any pointers please?

Thanks!