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https://issues.apache.org/jira/browse/ARTEMIS-4809?focusedWorklogId=922644&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-922644
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ASF GitHub Bot logged work on ARTEMIS-4809:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 07/Jun/24 19:40
Start Date: 07/Jun/24 19:40
Worklog Time Spent: 10m
Work Description: joshb1050 opened a new pull request, #4966:
URL: https://github.com/apache/activemq-artemis/pull/4966
In some setups, there could be a few hundred thousand queues that are
created due to many consumers that are connecting. However, most of these are
empty and stay empty for the entire day since there aren't necessarily messages
to be sent. The 8K `intermediateMessageReferences` instantiates an `64KB`
buffer (`Object[]`). This means we have large allocation and live heap that
ultimately remains empty for almost the entire day.
In this commit, we introduce `intermediate-message-buffer-initial-size`,
which defaults to the current value of `8192`. It can be set programmatically
via
`QueueConfiguration#setIntermediateMessageBufferInitialSize(int)`.
Note that this must be a power of 2.
Issue Time Tracking
-------------------
Worklog Id: (was: 922644)
Remaining Estimate: 0h
Time Spent: 10m
> Make intermediateMessageReferences initial capacity configurable
> ----------------------------------------------------------------
>
> Key: ARTEMIS-4809
> URL: https://issues.apache.org/jira/browse/ARTEMIS-4809
> Project: ActiveMQ Artemis
> Issue Type: New Feature
> Components: Broker
> Reporter: Josh Byster
> Priority: Minor
> Time Spent: 10m
> Remaining Estimate: 0h
>
> In some setups, there could be a few hundred thousand queues that are created
> due to many consumers that are connecting. However, most of these are empty
> and stay empty for the entire day since there aren't necessarily messages to
> be sent.
> The 8K {{intermediateMessageReferences}} instantiates an 64KB buffer
> ({{Object[]}}). This means we have large allocation and live heap that
> ultimately remains empty for almost the entire day.
> It would be quite nice if we could configure this initial size.
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