[jira] [Commented] (QPID-8452) Message larger than 2GB

["Marek Laca (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/QPID-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17185105#comment-17185105 ] 

Marek Laca commented on QPID-8452:
----------------------------------

The AMQP protocol specification states that the Data section of the message is a byte array, which has the size limit 4 GB. The best possible improvement is from 2 GB to 4 GB.

Broker utilizes the Java byte array and ByteBuffer that have the limit 2 GB. Broker uses the sign integer for data size, length, position and the sign integer can index 2 GB of data at most.

Fixing the issue would require an extensive change in the Broker. I would suggest limiting the maximum message size that the broker can process to the 2 GB. Let the broker gracefully fail when client tries to send a message bigger than 2 GB.

> Message larger than 2GB
> -----------------------
>
>                 Key: QPID-8452
>                 URL: https://issues.apache.org/jira/browse/QPID-8452
>             Project: Qpid
>          Issue Type: Bug
>          Components: Broker-J
>    Affects Versions: qpid-java-broker-8.0.0
>            Reporter: Tomas Soltys
>            Priority: Minor
>
> Seems like there is a 2GB limitation for how big the message can be. This is most likely due to usage of Int type.
> Also, when this limit is reached no exception is raised nor any message is printed into a broker log and sender seems to keep waiting for acknowledgement.



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