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Date: Thu, 28 Jul 2016 03:47:20 +0000 (UTC)
From: "yin mingjun (JIRA)" <jira@apache.org>
To: log4j-dev@logging.apache.org
Message-ID: <JIRA.12993135.1469677604000.154296.1469677640518@Atlassian.JIRA>
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References: <JIRA.12993135.1469677604000@Atlassian.JIRA> <JIRA.12993135.1469677604345@arcas>
Subject: [jira] [Created] (LOG4J2-1486) when rolling target file exist,
 RollingFileManager would remove target log file and fail rollover log file
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archived-at: Thu, 28 Jul 2016 03:47:22 -0000

yin mingjun created LOG4J2-1486:
-----------------------------------

             Summary: when rolling target file exist, RollingFileManager would remove target log file and fail rollover log file
                 Key: LOG4J2-1486
                 URL: https://issues.apache.org/jira/browse/LOG4J2-1486
             Project: Log4j 2
          Issue Type: Bug
          Components: Core
    Affects Versions: 2.6.2
         Environment: mac osx capiton/jvm 1.7/log4j2 2.6.2
            Reporter: yin mingjun


I create two file, one is testcmd.log, other is testcmd.log.2016-07-24
then, I touch the testcmd.log's modified time:
{{touch -t 1607240101 testcmd.log}}

and I write some code like this:
{code}
    @Test
    public void testRollingFileManager() {
        TriggeringPolicy triggerPolicy = TimeBasedTriggeringPolicy.createPolicy("1", "true");
        DefaultRolloverStrategy rolloverStrategy = DefaultRolloverStrategy.createStrategy("7", "1", "max", null, null, false, new NullConfiguration());
        RollingFileManager fileManager = RollingFileManager.getFileManager("testcmd.log", "testcmd.log.%d{yyyy-MM-dd}", true, true, triggerPolicy, rolloverStrategy, null, PatternLayout.createDefaultLayout(), 0, true);

        //trigger rollover
        fileManager.rollover();
    }
 {code}

I run this code, find that testcmd.log.2016-07-24 is disappear !!!

I think the file pattern dos't contain "%i", the purge process can be ignored (the file is removed during purge operation). And the other advise is, IF the destination file is already exists, we should just ignore the rolling over operation. Anyway, the lost of a log file has more harms for us.

thanks.

yin mingjun


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