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https://issues.apache.org/jira/browse/ARTEMIS-3021?focusedWorklogId=647212&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-647212
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ASF GitHub Bot logged work on ARTEMIS-3021:
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Author: ASF GitHub Bot
Created on: 07/Sep/21 07:28
Start Date: 07/Sep/21 07:28
Worklog Time Spent: 10m
Work Description: franz1981 commented on pull request #3370:
URL: https://github.com/apache/activemq-artemis/pull/3370#issuecomment-914061015
This need some time to be ready, but it's worth to be fixed IMO, so I'll
leave it opened as draft
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Issue Time Tracking
-------------------
Worklog Id: (was: 647212)
Time Spent: 4h 20m (was: 4h 10m)
> OOM due to wrong CORE clustered message memory estimation
> ---------------------------------------------------------
>
> Key: ARTEMIS-3021
> URL: https://issues.apache.org/jira/browse/ARTEMIS-3021
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Reporter: Francesco Nigro
> Assignee: Francesco Nigro
> Priority: Major
> Time Spent: 4h 20m
> Remaining Estimate: 0h
>
> This is affecting clustered Core messages (persistent or not).
> The process that cause the wrong estimation is:
> # add route information to the message
> # get memory estimation for paging (ie address size estimation) without
> accounting the new route information
> # get message persist size for durable append on journal/to update queue
> statistics, triggering a re-encoding
> # re-encoding (can) enlarge the message buffer to be the next power of 2
> available capacity
> The 2 fixes are:
> * getting a correct memory estimation of the message (including the added
> route information)
> * save an excessive buffer growth caused by the default Netty's
> ByteBuf::ensureWritable strategy
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