[jira] [Commented] (KAFKA-1241) Cryptic serde error messages in new producer

["Jay Kreps (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-1241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13894185#comment-13894185 ] 

Jay Kreps commented on KAFKA-1241:
----------------------------------

Created reviewboard https://reviews.apache.org/r/17836/
 against branch trunk

> Cryptic serde error messages in new producer
> --------------------------------------------
>
>                 Key: KAFKA-1241
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1241
>             Project: Kafka
>          Issue Type: Bug
>          Components: producer 
>    Affects Versions: 0.9.0
>            Reporter: Neha Narkhede
>            Assignee: Jay Kreps
>            Priority: Critical
>         Attachments: KAFKA-1241.patch
>
>
> One of the motivations for the new serde format is better error reporting. I was running a test on the new mirror maker when I saw this exception -
> java.nio.BufferUnderflowException
> 	at java.nio.Buffer.nextGetIndex(Buffer.java:480)
> 	at java.nio.HeapByteBuffer.getInt(HeapByteBuffer.java:336)
> 	at kafka.common.protocol.types.Type$3.read(Type.java:88)
> 	at kafka.common.protocol.types.Schema.read(Schema.java:50)
> 	at kafka.common.protocol.types.ArrayOf.read(ArrayOf.java:30)
> 	at kafka.common.protocol.types.Schema.read(Schema.java:50)
> 	at kafka.common.protocol.types.ArrayOf.read(ArrayOf.java:30)
> 	at kafka.common.protocol.types.Schema.read(Schema.java:50)
> 	at kafka.clients.producer.internals.Sender.handleResponses(Sender.java:273)
> 	at kafka.clients.producer.internals.Sender.run(Sender.java:144)
> 	at kafka.clients.producer.internals.Sender.run(Sender.java:84)
> 	at java.lang.Thread.run(Thread.java:619)
> I was expecting to see a precise error message about the Request type that serde failed for. Instead it says Type$3 and no information on which field.



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