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ASF subversion and git services commented on QPID-7830: ------------------------------------------------------- Commit 83c6dfebc3c815157ed3f04403a6968cc05eabae in qpid-broker-j's branch refs/heads/7.0.x from [~k-wall] [ https://git-wip-us.apache.org/repos/asf?p=qpid-broker-j.git;h=83c6dfe ] QPID-7830: [Broker-J] [AMQP 0-8..0-91] Mechanically refactor AMQPShortString introducing factory methods and hiding constructors (cherry picked from commit 0a3dfc883b7af756fbdf076665eaae4ad8202bf7) > 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 > Priority: Major > Fix For: Future > > > 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. > 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 (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@qpid.apache.org For additional commands, e-mail: dev-h...@qpid.apache.org