[jira] [Created] (FLINK-29860) Pulsar connector bug when using Hybrid.Builder

["Noel O'Connor (Jira)" <ji...@apache.org>]

Noel O'Connor created FLINK-29860:
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             Summary: Pulsar connector bug when using Hybrid.Builder
                 Key: FLINK-29860
                 URL: https://issues.apache.org/jira/browse/FLINK-29860
             Project: Flink
          Issue Type: Bug
          Components: Connectors / Pulsar
    Affects Versions: 1.6.4
            Reporter: Noel O'Connor


When using a HybridSource with a set of pulsar sources submitting a job to a flink cluster results in the following error

------------------------------------------------------------
 The program finished with the following exception:

The implementation of the BlockElement is not serializable. The object probably contains or references non serializable fields.
    org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:164)
    org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:132)
    org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:132)
    org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:132)
    org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:132)
    org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:69)
    org.apache.flink.connector.base.source.hybrid.HybridSource$HybridSourceBuilder.addSource(HybridSource.java:246)
    org.apache.flink.connector.base.source.hybrid.HybridSource$HybridSourceBuilder.addSource(HybridSource.java:233)
    org.apache.flink.connector.base.source.hybrid.HybridSource.builder(HybridSource.java:104)

 

I think this is related to https://issues.apache.org/jira/browse/FLINK-25444

From a pulsar connector perspective it's simple fixed, just mark the "private final InlineElement desc" attribute in flink-connectors/flink-connector-pulsar/src/main/java/org/apache/flink/connector/pulsar/source/config/CursorVerification.java

 

I've tested this and it seems to solve the issue. I can submit a PR with this fix.

 



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