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https://issues.apache.org/jira/browse/ARTEMIS-2451?focusedWorklogId=295497&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-295497
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ASF GitHub Bot logged work on ARTEMIS-2451:
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Author: ASF GitHub Bot
Created on: 15/Aug/19 15:30
Start Date: 15/Aug/19 15:30
Worklog Time Spent: 10m
Work Description: jbertram commented on issue #2796: ARTEMIS-2451 remove
need for knownDestination Cache
URL: https://github.com/apache/activemq-artemis/pull/2796#issuecomment-521683921
It's *possible* that `tempQueues` could grow like `knownDestinations`.
However, entries are only added to `tempQueues` for temporary destinations that
the client actually creates and entries from `tempQueues` get removed when the
corresponding temporary destination is deleted from the broker. An entry is
added to `knownDestinations` for every unique destination to which a client
sends a message and those entries *never* get removed unless they are temporary
destinations which the client itself deletes. In my mind these facts make the
pathological growth much less likely.
Also, in JMS terms the lifetime of a temporary destination is actually the
lifetime of the *connection* that created it, not the session. The temporary
destinations need to be tracked somehow so that the client implementation can
delete them implicitly when the connection is closed in the case that the
application doesn't delete them explicitly.
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Issue Time Tracking
-------------------
Worklog Id: (was: 295497)
Time Spent: 5h 10m (was: 5h)
> Limit size of destination cache
> -------------------------------
>
> Key: ARTEMIS-2451
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2451
> Project: ActiveMQ Artemis
> Issue Type: Improvement
> Reporter: Justin Bertram
> Assignee: Justin Bertram
> Priority: Major
> Time Spent: 5h 10m
> Remaining Estimate: 0h
>
> This is the client-side version of ARTEMIS-2449. Simply put, there is no
> limit on the destination cache for a core JMS client. For a long-lived
> connection sending to lots of different destinations (e.g. in a request-reply
> use-case involving temporary queues) this can present a significant problem.
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