dttlgotv opened a new issue #3476: some error about slf4j URL: https://github.com/apache/incubator-heron/issues/3476 I tried to create a simple Heron topology to integrate kafak, slf4j must be added in build. However, when I submit the topology to the local heron cluster, it can be run and but I get errors as: 0800] [STDERR] stderr: SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". [2020-03-02 14:07:23 +0800] [STDERR] stderr: SLF4J: Defaulting to no-operation (NOP) logger implementation [2020-03-02 14:07:23 +0800] [STDERR] stderr: SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
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