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https://issues.apache.org/jira/browse/TS-1457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13492955#comment-13492955
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William Bardwell commented on TS-1457:
--------------------------------------
This is similar possibly identical to some of what I saw in TS-1247. I will
experiment with the patch and see if it helps my case. (I was also needing
patches in my plugin, especially when the client was much slower than the
origin, which seems separate from the chunking issue.)
> transforms during video requests cause massive memory growth
> ------------------------------------------------------------
>
> Key: TS-1457
> URL: https://issues.apache.org/jira/browse/TS-1457
> Project: Traffic Server
> Issue Type: Bug
> Components: Core
> Affects Versions: 3.2.0
> Environment: Linux RHEL6.2
> Reporter: Aidan McGurn
> Assignee: Alan M. Carroll
> Priority: Critical
> Fix For: 3.3.1
>
> Attachments: 3.0.3-null-massif.txt, 3.0.5-null-massif.txt,
> alan-8Kperm-fix-massif.txt, alan-chunk-fix-3.2.0-null.txt,
> alan-nofix-3.2.0-null.txt, alan-NO-fix-massif.txt, alan-perm-fix-massif.txt,
> no-null-3.2.0-massif.txt, null-3.0.2-massif.txt, null-3.2.0-massif.txt,
> ts-1457-patch-1.diff
>
>
> Running the null-transform example object over 3.2.0, shows massive memory
> growth -
> This could be seen on our system since using 3.2.0 with custom plugin which
> invokes transforms - under load ~6K and with video content (only Video -
> small files are ok), a huge growth was seen (GB's) such that it crashes the
> load test machine.
> heap profiles are attached for comparison:
> -null transform example so over 3.2.0
> -NO null transform over 3.2.0
> -null transform example so over 3.0.2
> As can be seen no issue in 3.0.2 -
> The profiles show clearly the call chain is different for both releases
>
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