Strange symbols in log-output












1















I started to see strange output in my log files:




2018-11-14 14:04:21,180 [main] [34mINFO[0;39m com.zaxxer.hikari.HikariDataSource - HikariPool-1 - Shutdown initiated...
2018-11-14 14:04:21,186 [main] [34mINFO[0;39m com.zaxxer.hikari.HikariDataSource - HikariPool-1 - Shutdown completed.`




I don't know what does [34m or [0;39m mean and why it is here.



My logback.xml configuration:



 <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>server.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>server.%d{yyyy-MM-dd}.%i.log</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>50MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
<charset>UTF-8</charset>
<layout class="ch.qos.logback.classic.PatternLayout">
<pattern>%d [%thread] (%level) %logger{50} - %msg%n</pattern>
</layout>
</encoder>
</appender>

<root level="info">
<appender-ref ref="FILE" />
</root>









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  • maven.40175.n5.nabble.com/…

    – fantaghirocco
    Nov 14 '18 at 11:29











  • If I undestand correctly it should be some infos related to synthax colouring

    – fantaghirocco
    Nov 14 '18 at 11:34
















1















I started to see strange output in my log files:




2018-11-14 14:04:21,180 [main] [34mINFO[0;39m com.zaxxer.hikari.HikariDataSource - HikariPool-1 - Shutdown initiated...
2018-11-14 14:04:21,186 [main] [34mINFO[0;39m com.zaxxer.hikari.HikariDataSource - HikariPool-1 - Shutdown completed.`




I don't know what does [34m or [0;39m mean and why it is here.



My logback.xml configuration:



 <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>server.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>server.%d{yyyy-MM-dd}.%i.log</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>50MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
<charset>UTF-8</charset>
<layout class="ch.qos.logback.classic.PatternLayout">
<pattern>%d [%thread] (%level) %logger{50} - %msg%n</pattern>
</layout>
</encoder>
</appender>

<root level="info">
<appender-ref ref="FILE" />
</root>









share|improve this question

























  • maven.40175.n5.nabble.com/…

    – fantaghirocco
    Nov 14 '18 at 11:29











  • If I undestand correctly it should be some infos related to synthax colouring

    – fantaghirocco
    Nov 14 '18 at 11:34














1












1








1








I started to see strange output in my log files:




2018-11-14 14:04:21,180 [main] [34mINFO[0;39m com.zaxxer.hikari.HikariDataSource - HikariPool-1 - Shutdown initiated...
2018-11-14 14:04:21,186 [main] [34mINFO[0;39m com.zaxxer.hikari.HikariDataSource - HikariPool-1 - Shutdown completed.`




I don't know what does [34m or [0;39m mean and why it is here.



My logback.xml configuration:



 <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>server.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>server.%d{yyyy-MM-dd}.%i.log</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>50MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
<charset>UTF-8</charset>
<layout class="ch.qos.logback.classic.PatternLayout">
<pattern>%d [%thread] (%level) %logger{50} - %msg%n</pattern>
</layout>
</encoder>
</appender>

<root level="info">
<appender-ref ref="FILE" />
</root>









share|improve this question
















I started to see strange output in my log files:




2018-11-14 14:04:21,180 [main] [34mINFO[0;39m com.zaxxer.hikari.HikariDataSource - HikariPool-1 - Shutdown initiated...
2018-11-14 14:04:21,186 [main] [34mINFO[0;39m com.zaxxer.hikari.HikariDataSource - HikariPool-1 - Shutdown completed.`




I don't know what does [34m or [0;39m mean and why it is here.



My logback.xml configuration:



 <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>server.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>server.%d{yyyy-MM-dd}.%i.log</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>50MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
<charset>UTF-8</charset>
<layout class="ch.qos.logback.classic.PatternLayout">
<pattern>%d [%thread] (%level) %logger{50} - %msg%n</pattern>
</layout>
</encoder>
</appender>

<root level="info">
<appender-ref ref="FILE" />
</root>






java logging logback






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edited Nov 14 '18 at 11:33









fantaghirocco

3,64352536




3,64352536










asked Nov 14 '18 at 11:14









Igor Kustov merge meIgor Kustov merge me

306314




306314













  • maven.40175.n5.nabble.com/…

    – fantaghirocco
    Nov 14 '18 at 11:29











  • If I undestand correctly it should be some infos related to synthax colouring

    – fantaghirocco
    Nov 14 '18 at 11:34



















  • maven.40175.n5.nabble.com/…

    – fantaghirocco
    Nov 14 '18 at 11:29











  • If I undestand correctly it should be some infos related to synthax colouring

    – fantaghirocco
    Nov 14 '18 at 11:34

















maven.40175.n5.nabble.com/…

– fantaghirocco
Nov 14 '18 at 11:29





maven.40175.n5.nabble.com/…

– fantaghirocco
Nov 14 '18 at 11:29













If I undestand correctly it should be some infos related to synthax colouring

– fantaghirocco
Nov 14 '18 at 11:34





If I undestand correctly it should be some infos related to synthax colouring

– fantaghirocco
Nov 14 '18 at 11:34












1 Answer
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Those are escape sequences to color the output. See ANSI escape codes






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    1 Answer
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    1 Answer
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    active

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    active

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    active

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    Those are escape sequences to color the output. See ANSI escape codes






    share|improve this answer




























      1














      Those are escape sequences to color the output. See ANSI escape codes






      share|improve this answer


























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        1








        1







        Those are escape sequences to color the output. See ANSI escape codes






        share|improve this answer













        Those are escape sequences to color the output. See ANSI escape codes







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        answered Nov 14 '18 at 11:38









        krithskriths

        112




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