PilgrimOfNegentropy opened a new issue #3516:
URL: https://github.com/apache/rocketmq/issues/3516
`org.apache.rocketmq.remoting.netty.NettyLogger#initNettyLogger` method sets
the `InternalLoggerFactory#defaultFactory` to
`org.apache.rocketmq.remoting.netty.NettyLogger.NettyBridgeLoggerFactory`
overriding `io.netty.util.internal.logging.Slf4JLoggerFactory`
`NettyBridgeLoggerFactory` produces loggers whose
`isEnabled(InternalLogLevel internalLogLevel)` method is:
```java
return nettyLogLevel.ordinal() <= internalLogLevel.ordinal();
```
it returns false when the argument `internalLogLevel` is not greaterEqual
than `ERROR` because
`org.apache.rocketmq.remoting.netty.NettyLogger#nettyLogLevel` is `ERROR` and
it has no accessor so it's value is never changed
- What did you do (The steps to reproduce)?
`io.netty.handler.logging.LoggingHandler` uses `InternalLoggerFactory` to
create loggers. Thus if it's initialized after the rocketmq client
initialization, it creates a
`org.apache.rocketmq.remoting.netty.NettyLogger.NettyBridgeLogger` instead of
`SLF4J`'s. Thus it never prints logs under `ERROR` level.
2. Please tell us about your environment:
Windows 10 19043.1348
Oracle jdk1.8.0_211
maven dependency:
```
<dependency>
<groupId>org.apache.rocketmq</groupId>
<artifactId>rocketmq-spring-boot-starter</artifactId>
<version>2.1.1</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.27.Final</version>
</dependency>
```
I inspected the `4.9.2` version of `rocketmq-client`, it's the same code.
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