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Temporary files are not deleted if TemporaryFile objects are not garbage collected #5545

chunyang opened this Issue Feb 2, 2016 · 4 comments


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chunyang commented Feb 2, 2016

Temporary files are not deleted from disk unless the corresponding TemporaryFile objects are garbage collected. When garbage collection is not run in a timely manner, the files accumulate on disk and can lead to a denial of service.

The problem is exacerbated for requests that exceed maxDiskBuffer as handles to the temporary files are never passed to client code, so the client does not have an opportunity to delete the files.


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richdougherty commented Feb 2, 2016

I agree this is a problem, see my comment from here:

…I don't really like the way the delete happens in a finalize method. I'd like us to have a better way of cleaning up resources when a request finishes. Maybe each request could have an object where we could add "request finished" hooks.


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wsargent commented Feb 2, 2016

Possibly a dup of #5459


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mkurz commented Mar 6, 2016

Related: #4707, #3913, #6786 and #4762
Also this comment:

I'd rather the user explicitly does something if they want to keep it around after the request is complete, e.g. some sort of acquire/release operation, or maybe moving the file elsewhere.

As discussed in one of the above issues I am assigning the Play 3 milestone.

@mkurz mkurz added this to the 3.0.0 milestone Mar 6, 2016

@mkurz mkurz modified the milestones: 2.5.13, 3.0.0 Feb 15, 2017

@gmethvin gmethvin modified the milestones: 2.7.0, 3.0.0 Jun 22, 2017


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wsargent commented Jun 23, 2017

This can be handled by enabling the TemporaryFileReaper in 2.6.x:

@wsargent wsargent closed this Jun 23, 2017

@mkurz mkurz modified the milestones: 2.6.0, 2.7.0 Jun 26, 2017

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