DeleteAction in RollingFileManager does not work with soft link path

[umgsai]

Description

The path of log files is soft link, writing log files works good, but the DeleteAction in RollingFileManager does not work

Configuration

Version: [Log4j version]
2.17.2

Operating system: [OS and version]
Linux 10008-5ck7v 5.10.56-220320.el7.centos.x86_64 #1 SMP Sun Mar 20 08:36:08 EDT 2022 x86_64 x86_64 x86_64 GNU/Linux

JDK: [JDK distribution and version]
openjdk version "1.8.0_302"
OpenJDK Runtime Environment (Temurin)(build 1.8.0_302-b08)
OpenJDK 64-Bit Server VM (Temurin)(build 25.302-b08, mixed mode)

log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="TRACE" packages="com.xx.xx">
    <Properties>
        <!-- log_base_dir is soft link -->
        <Property name="log_base_dir">/opt/logs/10008</Property>
        <Property name="log_pattern"
                  value="[%d{yyyy-MM-dd HH:mm:ss.SSS}][%-5p][%C{1}.%M:%L][%t][msgId:%X{msgId}]%msg%xEx%n"/>
        <Property name="max_single_file_size">200KB</Property>
    </Properties>
    <Appenders>

        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="${log_pattern}"/>
        </Console>

        <RollingFile name="RollingFileInfo" fileName="${log_base_dir}/info.log"
                     filePattern="${log_base_dir}/info-%d{yyyy-MM-dd-HH}-%i.log.gz">
            <ThresholdFilter level="DEBUG" onMatch="ACCEPT" onMismatch="ACCEPT"/>
            <PatternLayout pattern="${log_pattern}" charset="UTF-8"/>
            <Policies>
                <TimeBasedTriggeringPolicy/>
                <SizeBasedTriggeringPolicy size="${max_single_file_size}"/>
            </Policies>
            <DefaultRolloverStrategy max="10">
                <!-- basePath is soft link -->
                <Delete basePath="/opt/logs/10008" maxDepth="1">
                    <IfFileName glob="info-*.log.gz">
                        <IfAny>
                            <IfLastModified age="1H"/>
                        </IfAny>
                    </IfFileName>
                </Delete>
            </DefaultRolloverStrategy>
        </RollingFile>
    </Appenders>

    <Loggers>
        <Root level="INFO">
            <!--<AppenderRef ref="Console"/>-->
        </Root>

        <AsyncLogger name="com.xx" level="DEBUG" includeLocation="true" additivity="false">
            <AppenderRef ref="Console"/>
            <AppenderRef ref="RollingFileInfo"/>
        </AsyncLogger>
    </Loggers>
</Configuration>

linux disk

[op@10008-rppm5 logs]$ 
[op@10008-rppm5 logs]$ pwd
/opt/logs
[op@10008-rppm5 logs]$ ll
lrwxrwxrwx 1 deploy deploy 28 Jul 11 21:04 10008 -> /mnt/sandbox/10008

when using the log4j2 config file above, the RollingFileManager logs as below, IfFileName REJECTED

2023-07-11 21:11:51,997 Log4j2-TF-2-RollingFileManager-4 DEBUG Starting DeleteAction[basePath=/opt/logs/10008, options=[], maxDepth=1, conditions=[IfFileName(glob:info-*.log.gz AND [IfAny[IfLastModified(age=PT1H)]])]]
2023-07-11 21:11:52,001 Log4j2-TF-2-RollingFileManager-4 DEBUG DeleteAction complete in 0.004209355 seconds
2023-07-11 21:11:52,001 Log4j2-TF-2-RollingFileManager-4 TRACE Sorted paths:
2023-07-11 21:11:52,002 Log4j2-TF-2-RollingFileManager-4 TRACE /opt/logs/10008 (modified: 2023-07-11T13:11:20.375534Z)
2023-07-11 21:11:52,002 Log4j2-TF-2-RollingFileManager-4 TRACE IfFileName REJECTED: 'glob:info-*.log.gz' does not match relative path ''
2023-07-11 21:11:52,002 Log4j2-TF-2-RollingFileManager-4 TRACE Not deleting base=/opt/logs/10008, relative=

then I update the config file as below

            <DefaultRolloverStrategy max="10">
                <!-- basePath is real disk path -->
                <Delete basePath="/mnt/sandbox/10008" maxDepth="1">
                    <IfFileName glob="info-*.log.gz">
                        <IfAny>
                            <IfLastModified age="1H"/>
                        </IfAny>
                    </IfFileName>
                </Delete>
            </DefaultRolloverStrategy>

the RollingFileManager logs as below, IfFileName ACCEPTED

2762188:2023-07-11 21:20:19,150 Log4j2-TF-2-RollingFileManager-13 DEBUG Starting DeleteAction[basePath=/mnt/sandbox/10008, options=[], maxDepth=1, conditions=[IfFileName(glob:info-*.log.gz AND [IfAny[IfLastModified(age=PT1H)]])]]
2023-07-11 21:20:19,152 Log4j2-TF-2-RollingFileManager-13 DEBUG DeleteAction complete in 0.001599611 seconds
2023-07-11 21:20:19,152 Log4j2-TF-2-RollingFileManager-13 TRACE Sorted paths:
.........
2023-07-11 21:20:19,153 Log4j2-TF-2-RollingFileManager-13 TRACE /mnt/sandbox/10008/info-2023-07-11-21-9.log.gz (modified: 2023-07-11T13:20:07.361429Z)
2023-07-11 21:20:19,153 Log4j2-TF-2-RollingFileManager-13 TRACE /mnt/sandbox/10008/info-2023-07-11-21-8.log.gz (modified: 2023-07-11T13:20:07.217431Z)
2023-07-11 21:20:19,153 Log4j2-TF-2-RollingFileManager-13 TRACE /mnt/sandbox/10008/info-2023-07-11-21-7.log.gz (modified: 2023-07-11T13:20:06.969435Z)
2023-07-11 21:20:19,153 Log4j2-TF-2-RollingFileManager-13 TRACE /mnt/sandbox/10008/info-2023-07-11-21-6.log.gz (modified: 2023-07-11T13:20:06.796437Z)
2023-07-11 21:20:19,154 Log4j2-TF-2-RollingFileManager-13 TRACE /mnt/sandbox/10008/info-2023-07-11-21-5.log.gz (modified: 2023-07-11T13:20:06.393443Z)
2023-07-11 21:20:19,154 Log4j2-TF-2-RollingFileManager-13 TRACE /mnt/sandbox/10008/info-2023-07-11-21-4.log.gz (modified: 2023-07-11T13:20:06.030448Z)
2023-07-11 21:20:19,154 Log4j2-TF-2-RollingFileManager-13 TRACE /mnt/sandbox/10008/info-2023-07-11-21-3.log.gz (modified: 2023-07-11T13:20:05.692453Z)
2023-07-11 21:20:19,154 Log4j2-TF-2-RollingFileManager-13 TRACE /mnt/sandbox/10008/info-2023-07-11-21-2.log.gz (modified: 2023-07-11T13:20:01.567513Z)

2023-07-11 21:20:19,161 Log4j2-TF-2-RollingFileManager-13 TRACE IfFileName ACCEPTED: 'glob:info-*.log.gz' matches relative path 'info-2023-07-11-21-10.log.gz'
2023-07-11 21:20:19,162 Log4j2-TF-2-RollingFileManager-13 TRACE IfLastModified REJECTED: info-2023-07-11-21-10.log.gz ageMillis '12' < 'PT1H'
2023-07-11 21:20:19,162 Log4j2-TF-2-RollingFileManager-13 TRACE Not deleting base=/mnt/sandbox/10008, relative=info-2023-07-11-21-10.log.gz
2023-07-11 21:20:19,163 Log4j2-TF-2-RollingFileManager-13 TRACE IfFileName REJECTED: 'glob:info-*.log.gz' does not match relative path 'catalina.2023-07-11.log'
2023-07-11 21:20:19,163 Log4j2-TF-2-RollingFileManager-13 TRACE Not deleting base=/mnt/sandbox/10008, relative=catalina.2023-07-11.log
2023-07-11 21:20:19,163 Log4j2-TF-2-RollingFileManager-13 TRACE IfFileName ACCEPTED: 'glob:info-*.log.gz' matches relative path 'info-2023-07-11-21-9.log.gz'
2023-07-11 21:20:19,163 Log4j2-TF-2-RollingFileManager-13 TRACE IfLastModified REJECTED: info-2023-07-11-21-9.log.gz ageMillis '11802' < 'PT1H'
2023-07-11 21:20:19,164 Log4j2-TF-2-RollingFileManager-13 TRACE Not deleting base=/mnt/sandbox/10008, relative=info-2023-07-11-21-9.log.gz
2023-07-11 21:20:19,164 Log4j2-TF-2-RollingFileManager-13 TRACE IfFileName ACCEPTED: 'glob:info-*.log.gz' matches relative path 'info-2023-07-11-21-8.log.gz'

How to make RollingFileManager works good when using soft link basePath?

[lukaszspyra]

Did you try to add followLinks = "true"? According to docs, it does not follow symlinks by default.