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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2021/04/13 22:11:54 UTC

[GitHub] [pulsar] merlimat commented on issue #10210: Schema: "IllegalReferenceCountException: refCnt: 0" while getting schema with AutoConsumeSchema

merlimat commented on issue #10210:
URL: https://github.com/apache/pulsar/issues/10210#issuecomment-819086592


   I think the problem is that https://github.com/apache/pulsar/blob/c9c116767235491aca6f27ef7a07705666bbd647/pulsar-client/src/main/java/org/apache/pulsar/client/impl/ClientCnx.java#L879 is getting called potentially in a different thread, when the `request` buffer is going to be already released.
   
   In particular, due to lazy initialization of fields, calling `commandGetSchemaResponse.getSchema()` will trigger to read from the original buffer, and it causes the above error when the buffer is already gone.
   
   


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