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http://jira.qos.ch/browse/LBCLASSIC-312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12327#action_12327
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Dmitrius Listo commented on LBCLASSIC-312:
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UPD. Just tried to substitute ${LOG_PATTERN} into sifted appender. Got
"LOG_PATTERN_IS_UNDEFINED" instead of log statements. It looks like property
substitution inside sifted uppender is broken at all.
> SiftingAppender does not substitute variable value inside sift
> --------------------------------------------------------------
>
> Key: LBCLASSIC-312
> URL: http://jira.qos.ch/browse/LBCLASSIC-312
> Project: logback-classic
> Issue Type: Bug
> Components: appender
> Affects Versions: 1.0.0
> Environment: Ubuntu 11.04, Eclipse 3.7
> Reporter: Dmitrius Listo
> Assignee: Logback dev list
> Attachments: log.txt, logback.xml
>
>
> Faced a probable bug (at least, did not find any mention about such issue at
> manual/google/other bugs in category).
> Brief logging configuration description:
> I have a property defined in my logback configuration.
> There is a property with log file location defined:
> <property name="LOG_HOME" value="/tmp/aicore" />
> Also, I have ConsoleAppender and two RollingFileAppender appenders, attached
> to root logger. RollingFileAppender configuration contains LOG_HOME variable
> in path and substitution is done without any issues, log file is created and
> updated.
> But when I add SiftingAppender (log files are created on per-threadId basis),
> that contains FileAppender in it's sift section, variable value is not
> substituted.
> Here is the logback log fragment, generated using OnConsoleStatusListener:
> 22:11:27,396 |-INFO in ch.qos.logback.core.joran.action.AppenderAction -
> About to instantiate appender of type [ch.qos.logback.core.FileAppender]
> 22:11:27,396 |-INFO in ch.qos.logback.core.joran.action.AppenderAction -
> Naming appender as [FILE-server]
> 22:11:27,398 |-INFO in
> ch.qos.logback.core.joran.action.NestedComplexPropertyIA - Assuming default
> type [ch.qos.logback.classic.encoder.PatternLayoutEncoder] for [encoder]
> property
> 22:11:27,400 |-INFO in ch.qos.logback.core.FileAppender[FILE-server] - File
> property is set to [LOG_HOME_IS_UNDEFINED/thread-server.log]
> Note the "LOG_HOME_IS_UNDEFINED/thread-server.log" value. As a result, no any
> sift log file is created in expected location. When I substitute ${LOG_HOME}
> value manually, everything works well.
> Below is my SiftingAppender config:
> <appender name="SIFT"
> class="ch.qos.logback.classic.sift.SiftingAppender">
> <discriminator
> class="ch.qos.logback.classic.sift.MDCBasedDiscriminator">
> <key>threadId</key>
> <defaultValue>unclassified</defaultValue>
> </discriminator>
> <sift>
> <appender name="FILE-${threadId}"
> class="ch.qos.logback.core.FileAppender">
> <file>${LOG_HOME}/thread-${threadId}.log</file>
> <append>false</append>
> <encoder>
> <pattern>%d [%thread] %level %mdc %logger{35} -
> %msg%n</pattern>
> </encoder>
> </appender>
> </sift>
> </appender>
> Sorry if bug report is not formed perfectly, I have not much expertise yet :)
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