[jira] [Commented] (CONTINUUM-2746) Running build reports for a large number of builds can crash continuum

["Brent N Atkinson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CONTINUUM-2746?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14525502#comment-14525502 ] 

Brent N Atkinson commented on CONTINUUM-2746:
---------------------------------------------

It appears that the CSV export suffers from a slightly different problem that causes a similar outcome. Due to using the struts StreamResult with an in-memory Stream for CSV, a large CSV export will cause an OOME. Additionally, the struts stream result flow forces you to build the entire file before anything is streamed back to the browser.

So that we can truly stream efficiently, we should write the CSV output to the response as soon as it is available. This also protects us from large content since we only have to allocate server resources to a single unit of the output, and not the entire contents.

> Running build reports for a large number of builds can crash continuum
> ----------------------------------------------------------------------
>
>                 Key: CONTINUUM-2746
>                 URL: https://issues.apache.org/jira/browse/CONTINUUM-2746
>             Project: Continuum
>          Issue Type: Bug
>    Affects Versions: 1.4.2
>            Reporter: Brent N Atkinson
>            Assignee: Brent N Atkinson
>              Labels: maybe-1.5
>             Fix For: 1.5.0
>
>
> This needs to be investigated further, but it appears that it may be possible to crash continuum when running a build report for ALL reports when the number of builds is large. Allowing unbounded queries like this should be prevented.



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