I am attempting to configure logging for NiFi. I have NiFi running in a Docker
container, which sends all console logs to AWS CloudWatch. Therefore, I am
configuring NiFi to send all logs to the console.
The problem is, for some reason all log messages are coming from the
org.apache.nifi.StdOut logger. I cannot figure out why, since I would like
messages to be printed directly from the logger that is receiving them.
It seems like messages are "passing through" loggers, which are ultimately
printed out from the org.apache.nifi.StdOut logger. Here is an example of one
log message:
2022-09-27 10:08:01,849 INFO [NiFi logging handler] org.apache.nifi.StdOut
2022-09-27 10:08:01,848 INFO [pool-6-thread-1]
o.a.n.c.r.WriteAheadFlowFileRepository Initiating checkpoint of FlowFile
Repository
Why would every single log message come from the StdOut logger? And how can I
have logs delivered from the logger they're supposedly originally coming from?
My logback.xml configuration is below for reference.
<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="true">
<shutdownHook class="ch.qos.logback.core.hook.DelayingShutdownHook" />
<contextListener class="ch.qos.logback.classic.jul.LevelChangePropagator">
<resetJUL>true</resetJUL>
</contextListener>
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder
class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>%date %level [%thread] %logger{40} %msg%n</pattern>
</encoder>
</appender>
<logger name="org.apache.nifi" level="INFO"/>
<logger name="org.apache.nifi.processors" level="WARN"/>
<logger name="org.apache.nifi.processors.standard.LogAttribute"
level="INFO"/>
<logger name="org.apache.nifi.processors.standard.LogMessage"
level="INFO"/>
<logger
name="org.apache.nifi.controller.repository.StandardProcessSession"
level="WARN" />
<logger name="org.apache.zookeeper.ClientCnxn" level="ERROR" />
<logger name="org.apache.zookeeper.server.NIOServerCnxn" level="ERROR" />
<logger name="org.apache.zookeeper.server.NIOServerCnxnFactory"
level="ERROR" />
<logger name="org.apache.zookeeper.server.NettyServerCnxnFactory"
level="ERROR" />
<logger name="org.apache.zookeeper.server.quorum" level="ERROR" />
<logger name="org.apache.zookeeper.ZooKeeper" level="ERROR" />
<logger name="org.apache.zookeeper.server.PrepRequestProcessor"
level="ERROR" />
<logger name="org.apache.nifi.controller.reporting.LogComponentStatuses"
level="ERROR" />
<logger name="org.apache.calcite.runtime.CalciteException" level="OFF" />
<logger name="org.apache.curator.framework.recipes.leader.LeaderSelector"
level="OFF" />
<logger name="org.apache.curator.ConnectionState" level="OFF" />
<!-- Logger for managing logging statements for nifi clusters. -->
<logger name="org.apache.nifi.cluster" level="INFO"/>
<!-- Logger for logging HTTP requests received by the web server. -->
<logger name="org.apache.nifi.server.JettyServer" level="INFO"/>
<!-- Logger for managing logging statements for jetty -->
<logger name="org.eclipse.jetty" level="INFO"/>
<!-- Suppress non-error messages due to excessive logging by class or
library -->
<logger name="org.springframework" level="ERROR"/>
<!-- Suppress non-error messages due to known warning about redundant
path annotation (NIFI-574) -->
<logger name="org.glassfish.jersey.internal.Errors" level="ERROR"/>
<!-- Suppress non-error messages due to Jetty AnnotationParser emitting a
large amount of WARNS. Issue described in NIFI-5479. -->
<logger name="org.eclipse.jetty.annotations.AnnotationParser"
level="ERROR"/>
<!-- Suppress non-error messages from SSHJ which was emitting large
amounts of INFO logs by default -->
<logger name="net.schmizz.sshj" level="WARN" />
<logger name="com.hierynomus.sshj" level="WARN" />
<!-- Suppress non-error messages from SMBJ which was emitting large
amounts of INFO logs by default -->
<logger name="com.hierynomus.smbj" level="WARN" />
<!-- Suppress non-error messages from AWS KCL which was emitting large
amounts of INFO logs by default -->
<logger name="com.amazonaws.services.kinesis" level="WARN" />
<!-- Suppress non-error messages from Apache Atlas which was emitting
large amounts of INFO logs by default -->
<logger name="org.apache.atlas" level="WARN" />
<logger name="org.apache.nifi.web.security.requests" level="INFO" />
<!--
Logger for capturing user events. We do not want to propagate these
log events to the root logger. These messages are only sent to the
user-log appender.
-->
<logger name="org.apache.nifi.web.security" level="INFO" />
<logger name="org.apache.nifi.web.api.config" level="INFO" />
<logger name="org.apache.nifi.authorization" level="INFO" />
<logger name="org.apache.nifi.cluster.authorization" level="INFO" />
<logger name="org.apache.nifi.web.api.AccessResource" level="INFO" />
<logger name="org.springframework.security.saml.log" level="WARN" />
<logger name="org.opensaml" level="WARN" />
<logger name="org.apache.nifi.web.server.RequestLog" level="INFO" />
<logger name="org.apache.nifi.bootstrap" level="INFO" />
<logger name="org.apache.nifi.bootstrap.Command" level="INFO" />
<logger name="org.apache.nifi.StdOut" level="INFO" />
<logger name="org.apache.nifi.StdErr" level="INFO" />
<root level="INFO">
<appender-ref ref="CONSOLE" />
</root>
</configuration>
