qpid-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Alex Rudyy (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (QPID-7830) [Broker-J] Heap dominated by duplicates of common routing values / header values etc
Date Sat, 02 Jun 2018 21:32:00 GMT

     [ https://issues.apache.org/jira/browse/QPID-7830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Alex Rudyy resolved QPID-7830.
    Resolution: Fixed

> [Broker-J] 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: Broker-J
>            Reporter: Keith Wall
>            Assignee: Alex Rudyy
>            Priority: Major
>             Fix For: qpid-java-broker-7.1.0, qpid-java-broker-7.0.4
>         Attachments: 0001-QPID-7830-Broker-J-Simplify-string-caching-functiona.patch
> 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
> 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.
> This unnecessarily increases the heap requirements of the Broker.
> The Broker should adopt a sensible intern/caching policy with the same policy applying
regardless of whether messages follow the on-line enqueue or recovery path.  Note that in
AMQP 1.0, values which are {{Symbols}} have their underlying String automatically interned.

This message was sent by Atlassian JIRA

To unsubscribe, e-mail: dev-unsubscribe@qpid.apache.org
For additional commands, e-mail: dev-help@qpid.apache.org

View raw message