Guowei Ma created FLINK-15786:
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Summary: Load connector code with separate classloader
Key: FLINK-15786
URL: https://issues.apache.org/jira/browse/FLINK-15786
Project: Flink
Issue Type: Improvement
Components: Runtime / Task
Reporter: Guowei Ma
Currently, connector code can be seen as part of user code. Usually, users only
need to add the corresponding connector as a dependency and package it in the
user jar. This is convenient enough.
However, connectors usually need to interact with external systems and often
introduce heavy dependencies, there is a high possibility of a class conflict
of different connectors or the user code of the same job. For example, every
one or two weeks, we will receive issue reports relevant with connector class
conflict from our users. The problem can get worse when users want to analyze
data from different sources and write output to different sinks.
Using separate classloader to load the different connector code could resolve
the problem.
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