MINOR: change the log level from ERROR to DEBUG when failing to get plugin class loader#7964
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hachikuji merged 1 commit intoapache:trunkfrom Jan 21, 2020
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.../runtime/src/main/java/org/apache/kafka/connect/runtime/isolation/DelegatingClassLoader.java
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…lugin loader for connector
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* apache-github/trunk: KAFKA-9418; Add new sendOffsetsToTransaction API to KafkaProducer (apache#7952) KAFKA-7273 Clarification on mutability of headers passed to Converter#fromConnectData() (apache#7489) MINOR: Only update a request's local complete time in API handler if unset (apache#7813) KAFKA-9143: Log task reconfiguration error only when it happened (apache#7648) MINOR: Change the log level from ERROR to DEBUG when failing to get plugin loader for connector (apache#7964) KAFKA-9024: Better error message when field specified does not exist (apache#7819) KAFKA-7204: Avoid clearing records for paused partitions on poll of MockConsumer (apache#7505) KAFKA-9083: Various fixes/improvements for Connect's Values class (apache#7593) MINOR: log error message from Connect sink exception (apache#7555)
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The connectors located at classpath are loaded by AppClassLoader so Worker fails to find the PluginClassLoader for them. It should be normal case but the log level is ERROR.
there is similar case in DelegatingClassLoader#loadClass, and the log level is TRACE.
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