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February 2020

3 participants
2 discussions

RollingFileAppender maxFileSize doesn't work properly
by Mouhammad Kahwaji 01 Mar '20

01 Mar '20

Hi all, I have a RollingFileAppender defined as follows: appender("test", RollingFileAppender) { file = "${logDir}/logFile.log" encoder(PatternLayoutEncoder) { pattern = log_pattern_prod } rollingPolicy(FixedWindowRollingPolicy) { fileNamePattern = "${logDir}/logFile%i.log" minIndex = 1 maxIndex = 3 } triggeringPolicy(SizeBasedTriggeringPolicy) { maxFileSize = FileSize.valueOf("10KB") } } root(DEBUG, ['test']) I'm testing it, I get 3 archived files but the size of the files is not limited to 10KB as you can see in the attachment Why is this happening? The size of the files shouldn't exceed 10KB, how rolling is working in this case? Thanks in advance, Mhd

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Logback Threads Blocked: https://jira.qos.ch/browse/LOGBACK-1421?page=com.atlassian.jira.plugin.system.issuetabpanels%3Aall-tabpanel
by Prabhash Rathore 03 Feb '20

03 Feb '20

Hello, I have run into the same issue as documented in this Jira: https://jira.qos.ch/browse/LOGBACK-1421?page=com.atlassian.jira.plugin.syst… I notice most application threads are blocked with following stack trace. Looking at Jira, it seems fix for this was planned to be included as part of 1.3.0-alpha6 but I didn't find this release tag on Logback Github repo. Are there any plans to have a fix for this issue? I see we run into issue under high load. We run Java 11 on Linux RHEL 7. "ForkJoinPool.commonPool-worker-705" #29535 daemon prio=10 os_prio=0 cpu=11.37ms elapsed=343.90s tid=0x00007fd5dc197590 nid=0x2ad83 waiting for monitor entry [0x00007fccdadeb000] java.lang.Thread.State: BLOCKED (on object monitor) at ch.qos.logback.core.util.CachingDateFormatter.format(CachingDateFormatter.java:45) - waiting to lock <0x000008206586ad18> (a ch.qos.logback.core.util.CachingDateFormatter) at ch.qos.logback.classic.pattern.DateConverter.convert(DateConverter.java:61) at ch.qos.logback.classic.pattern.DateConverter.convert(DateConverter.java:23) at ch.qos.logback.core.pattern.FormattingConverter.write(FormattingConverter.java:36) at ch.qos.logback.core.pattern.PatternLayoutBase.writeLoopOnConverters(PatternLayoutBase.java:115) at ch.qos.logback.classic.PatternLayout.doLayout(PatternLayout.java:141) at ch.qos.logback.classic.PatternLayout.doLayout(PatternLayout.java:39) at ch.qos.logback.core.encoder.LayoutWrappingEncoder.encode(LayoutWrappingEncoder.java:115) at ch.qos.logback.core.OutputStreamAppender.subAppend(OutputStreamAppender.java:230) at ch.qos.logback.core.rolling.RollingFileAppender.subAppend(RollingFileAppender.java:235) at ch.qos.logback.core.OutputStreamAppender.append(OutputStreamAppender.java:102) at ch.qos.logback.core.UnsynchronizedAppenderBase.doAppend(UnsynchronizedAppenderBase.java:84) at ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:51) at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:270) at ch.qos.logback.classic.Logger.callAppenders(Logger.java:257) at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:421) at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:383) at ch.qos.logback.classic.Logger.info(Logger.java:579) Thank you for your help! Prabhash Rathore

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