[jira] [Created] (QPID-7830) Heap dominated by duplicates of common routing values / header values etc

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[jira] [Created] (QPID-7830) Heap dominated by duplicates of common routing values / header values etc

JIRA jira@apache.org
Keith Wall created QPID-7830:
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             Summary: Heap dominated by duplicates of common routing values / header values etc
                 Key: QPID-7830
                 URL: https://issues.apache.org/jira/browse/QPID-7830
             Project: Qpid
          Issue Type: Bug
          Components: Java Broker
            Reporter: Keith Wall


When used for store and forwarding, in some use cases the Broker's heap can become dominated by duplicates of common values such as routing information (e.g. {{amq.direct}} or an application's queue name) or common header values (e.g a application/octet-stream or an application's user id).

On the 0-8..0-91 paths, every enqueued message gets its own {{MessagePublishInfo}} referencing its own {{AMQShortString}} exchange and routing keys.  For some use-cases, these are drawn from a small set. On the AMQP 1.0 path, {{Properties#to}} is an example.   0-10 is probably affected too.

The Broker should adopt a sensible intern/caching policy.



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