I'm facing an issue with logback for slf4j-api 2.0+ versions, earlier it used to work when I set root logger level to "DEBUG"
Later on, post upgradation to 2.0+ (with logback-classic-1.4.+) I'm unable to print debug statements using root logger.
logback.xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="true" scan="true" scanPeriod="60 seconds">
<property scope="system" name="ff_logs" value="${firefly.logging.directory}" />
<include optional="true" file="/etc/firefly.temp/service-logback.xml"/>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>[%d{yyyy-MM-dd'T'HH:mm:ss.SSSZ}] [%thread] %-5level %logger - %msg%n</Pattern>
</layout>
</appender>
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${ff_logs}/${app.name}.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<fileNamePattern>${ff_logs}/${app.name}.log.%i.gz</fileNamePattern>
<minIndex>1</minIndex>
<maxIndex>20</maxIndex>
</rollingPolicy>
<triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<maxFileSize>20MB</maxFileSize>
</triggeringPolicy>
<encoder>
<pattern>[%d{yyyy-MM-dd'T'HH:mm:ss.SSSZ}] [%thread] %-5level %logger - %msg%n</pattern>
</encoder>
</appender>
<logger name="com.tran.firefly" level="INFO"/>
<logger name="org.apache.activemq.transport" level="WARN"/>
<logger name="com.org.firefly.sessionmanager" level="INFO"/>
<logger name="com.org.apps" level="INFO"/>
<logger name="com.datastax.driver.core.Cluster" level="INFO"/>
<logger name="com.datastax.driver.core.Connection" level="INFO"/>
<logger name="com.datastax.driver.core.Session" level="INFO"/>
<logger name="com.datastax.driver.core.RequestHandler" level="INFO"/>
<logger name="org.apache.kafka.clients.consumer.ConsumerConfig" level="WARN"/>
<logger name="org.apache.kafka.clients.consumer.internals.Fetcher" level="WARN"/>
<logger name="org.apache.kafka.clients.NetworkClient" level="WARN"/>
<logger name="org.apache.kafka.clients.FetchSessionHandler" level="WARN"/>
<logger name="com.org.firefly.crud.initialization.module.PrepareModuleTask" level="WARN"/>
<logger name="io.netty" level="WARN"/>
<root level="DEBUG">
<!-- <appender-ref ref="STDOUT" /> Remove comment markers to log to STDOUT inside the container -->
<appender-ref ref="FILE" />
</root>
</configuration>
Surprisingly getLogger with package name is working, but not with getClass. I got some answer to similar problem, but in play logs. Someone had similar issue with play logs
val log: Logger = LoggerFactory.getLogger(getClass)
my question is: do I have any work around to get application level logs when I set to Debug? Or is there any official announcement of deprecation?
val log: Logger = LoggerFactory.getLogger("com.package.SomeQualified.CanonicalNameHere")
is working, I could see prints. but it is not a viable solution for me. Suggest on this.
Im testing under com.org.firefly.aaa.authorization package
I have tried to upgrade /downgrade slf4j versions. tried with setting static strings in place of getClass.
<configuration>
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%-5level] %logger{15} - %msg%n%rEx</pattern>
</encoder>
<immediateFlush>false</immediateFlush>
</appender>
<timestamp key="timestamp" datePattern="yyyy-MM-dd'T'HH:mm:ss"/>
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>logs/test_${timestamp}.log</file>
<append>true</append>
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%-5level] %logger{15} - %msg%n%rEx</pattern>
</encoder>
</appender>
<!-- Uncomment for logging ALL HTTP request and responses-->
<logger name="io.gatling.http.ahc" level="TRACE" />
<logger name="io.gatling.http.response" level="TRACE" />
<!-- Uncomment for logging ONLY FAILED HTTP request and responses-->
<!-- <logger name="io.gatling.http.ahc" level="DEBUG" />-->
<!-- <logger name="io.gatling.http.response" level="DEBUG" />-->
<!-- TRACE logs all HTTP requests/response, DEBUG logs only failed HTTP requests/response-->
<!-- <logger name="io.gatling.http.engine.response" level="DEBUG" />-->
<root level="TRACE">
<appender-ref ref="FILE"/>
<!-- <appender-ref ref="CONSOLE"/>-->
</root>
</configuration>
Only simulation.log and gatling report got generated. but it should generate logs/test_${timestamp}.log file as per logback config. Can anyone help on this?
Are you sure the log file is generated where you expect it? Have you tried setting an absolute path?
I'm on Scala 2.12.x Play 2.7.x and as part of my Application Controllers I'm using the logger like this (or equivalently by doing with play.api.Logging):
val logger = play.api.Logger(this.getClass)
and the configuration conf/logback.xml is shown below. The issue is that Application-Controllers' logger.debug(...) statements are not being output in the logs. I assumed that the application was set to DEBUG see one of the lasts entries <logger name="application" level="DEBUG" /> but there is obviously something wrong as the DEBUG statements are not being output?
<!-- https://www.playframework.com/documentation/latest/SettingsLogger -->
<configuration>
<conversionRule conversionWord="coloredLevel" converterClass="play.api.libs.logback.ColoredLevel" />
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>${application.home:-.}/logs/application.log</file>
<encoder>
<pattern>%date [%level] from %logger in %thread - %message%n%xException</pattern>
</encoder>
</appender>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%coloredLevel %logger{15} - %message%n%xException{10}</pattern>
</encoder>
</appender>
<appender name="ASYNCFILE" class="ch.qos.logback.classic.AsyncAppender">
<appender-ref ref="FILE" />
</appender>
<appender name="ASYNCSTDOUT" class="ch.qos.logback.classic.AsyncAppender">
<appender-ref ref="STDOUT" />
</appender>
<logger name="play" level="INFO" />
<logger name="application" level="DEBUG" />
<logger name="slick" level="INFO" />
<logger name="slick.jdbc" level="DEBUG" />
<root level="WARN">
<appender-ref ref="ASYNCFILE" />
<appender-ref ref="ASYNCSTDOUT" />
</root>
</configuration>
PS: I know I can enable DEBUG for everything but then it is too much information I don't need, I'd like to see what's happening with my Controllers' logging.
The logger instantiated with play.api.Logger(this.getClass) inside a class like so
package controller
class HomeController extends ... {
val logger = play.api.Logger(this.getClass)
logger.debug("msg")
}
is not the application logger, but a distinct logger named
controller.HomeController
Thus to specify its log level add the following config to logback.xml
<logger name="controllers" level="DEBUG" />
This makes DEBUG the log level of all classes under controllers package.
Note application logger seems to be deprecated according to docs:
There is also a play.api.Logger singleton object that allows you to
access a logger named application, but its use is deprecated in Play
2.7.0 and above. You should declare your own logger instances...
If the messages are still not logging try changing from async appender to synchronous ones like so:
<root level="WARN">
<appender-ref ref="FILE" />
<appender-ref ref="STDOUT" />
</root>
I have a docker image for a Spring Boot app with the log file location as --logging.config=/conf/logs/logback.xml and the log file is as follows.
I am able to get the logs as
kubectl log POD_NAME
But, unable to find the log file when I log in to the pod. Is there any default location where the log file is placed as I haven't mentioned the logging location in the logback.xml file.
Logback file:
<?xml version="1.0" ?>
<configuration>
<property name="server.encoder.pattern"
value="%d{yyyy-MM-dd'T'HH:mm:ss.SSSZ} %-5level : loggerName="%logger{36}" threadName="%thread" txnId="%X{txnId}" %msg%n" />
<property name="metrics.encoder.pattern"
value="%d{yyyy-MM-dd'T'HH:mm:ss.SSSZ} %-5level : %msg%n" />
<!-- Enable LevelChangePropagator for jul-to-slf4j optimization -->
<contextListener class="ch.qos.logback.classic.jul.LevelChangePropagator" />
<appender name="METRICS" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>${metrics.encoder.pattern}</pattern>
</encoder>
</appender>
<logger name="appengAluminumMetricsLogger" additivity="false">
<appender-ref ref="METRICS" />
</logger>
<appender name="SERVER" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>${server.encoder.pattern}</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="SERVER" />
</root>
</configuration>
What you see from kubectl logs is console log from your service. Only console log can be seen like that and this is via docker logs support.
I would like to see what is in the body of the post that I am sending in my script. In fact, I would like to see the request, request body and response. From looking at the docs and the forums, I see that I can uncomment a line in logback-test.xml which I did as shown below
<contextListener class="ch.qos.logback.classic.jul.LevelChangePropagator">
<resetJUL>true</resetJUL>
</contextListener>
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%-5level] %logger{15} - %msg%n%rEx</pattern>
<immediateFlush>false</immediateFlush>
</encoder>
</appender>
<!-- Uncomment for logging ALL HTTP request and responses -->
<logger name="io.gatling.http" level="TRACE" />
<!-- Uncomment for logging ONLY FAILED HTTP request and responses -->
<!--<logger name="io.gatling.http" level="DEBUG" /> -->
<root level="DEBUG">
<appender-ref ref="CONSOLE" />
</root>
The simulation.log file nor the console shows me the request, response etc. After a bit of googling and reading documentation, I saw that I could do this -
.extraInfoExtractor(extraInfo => List(extraInfo.request, extraInfo.response,extraInfo.session))
This provides me with pretty much everything except the request body. How do I get the request body? I am trying to debug an issue where I am sure the body that is getting sent is not what I actually want.
Add this to your logback.xml
<logger name="io.gatling.http.ahc" level="DEBUG" />
This will print following details for each failure -
Request url
Request header
Request body
Response header
Gatling session data
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%-5level] %logger{15} - %msg%n%rEx</pattern>
<immediateFlush>false</immediateFlush>
</encoder>
</appender>
<timestamp key="timestamp" datePattern="yyyy-MM-dd'T'HH:mm:ss"/>
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>logs/test_${timestamp}.log</file>
<append>true</append>
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%-5level] %logger{15} - %msg%n%rEx</pattern>
</encoder>
</appender>
<!-- TRACE logs all HTTP requests/response, DEBUG logs only failed HTTP requests/response-->
<logger name="io.gatling.http.engine.response" level="TRACE" />
<root level="INFO">
<appender-ref ref="FILE" />
<appender-ref ref="CONSOLE"/>
</root>
Uncommenting only TRACE and leaving DEBUG commented helped.
An update with Gatling 3.x, the comment in logback.xml is quite self-explain
<!-- uncomment and set to DEBUG to log all failing HTTP requests -->
<!-- uncomment and set to TRACE to log all HTTP requests -->
<!-- <logger name="io.gatling.http.engine.response" level="TRACE" />-->
After uncomment the above config we can get the request url, request header, response etc in the log or IDE'S console. That's very helpful to verify the dynamic feeder value used in request url or body, and it's the way to debug the failed requests.
Just choose the root level as DEBUG
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%-5level] %logger{15} - %msg%n%rEx</pattern>
</encoder>
<immediateFlush>false</immediateFlush>
</appender>
<logger name="io.gatling.http.engine.response" level="DEBUG" />
<root level="DEBUG">
<appender-ref ref="CONSOLE" />
</root>
If you want to see logging of all HTTP requests and responses plus Session contents in your console output you can do the following:
Add or uncomment the following lines in your logger file:
<logger name="io.gatling.http.ahc" level="TRACE" />
<logger name="io.gatling.http.response" level="TRACE" />
Set root level as TRACE:
<root level="TRACE">
<appender-ref ref="CONSOLE" />
</root>