Differential D16271

Simplify "builtin file" management and recover from races
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Authored by epriestley on Jul 11 2016, 4:19 PM.

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Maniphest Tasks

T8124: Construction of "default" file resources may lose a race with itself
T11307: High-latency file storage can potentially break user profile pictures horribly

Commits

rP8ad61d01502d: Simplify "builtin file" management and recover from races

Summary

Fixes T11307. Fixes T8124. Currently, builtin files are tracked by using a special transform with an invalid source ID.

Just use a dedicated column instead. The transform thing is too clever/weird/hacky and exposes us to issues with the "file" and "transform" tables getting out of sync (possibly the issue in T11307?) and with race conditions.

Test Plan

Loaded profile "edit picture" page, saw builtins.
Deleted all builtin files, put 3 second sleep in the storage engine write, loaded profile page in two windows.
- Before patch: one of them failed with a race.
- After patch: both of them loaded.

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epriestley updated this revision to Diff 39138.Jul 11 2016, 4:19 PM

epriestley retitled this revision from to Simplify "builtin file" management and recover from races.

epriestley updated this object.

epriestley edited the test plan for this revision. (Show Details)

epriestley added a reviewer: chad.

epriestley added tasks: T11307: High-latency file storage can potentially break user profile pictures horribly, T8124: Construction of "default" file resources may lose a race with itself.

epriestley mentioned this in T11307: High-latency file storage can potentially break user profile pictures horribly.Jul 11 2016, 4:23 PM

chad accepted this revision.Jul 11 2016, 4:24 PM

chad edited edge metadata.

This revision is now accepted and ready to land.Jul 11 2016, 4:24 PM

Closed by commit rP8ad61d01502d: Simplify "builtin file" management and recover from races (authored by epriestley, committed by epriestley). · Explain WhyJul 11 2016, 4:25 PM

This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

Path

Size

resources/

sql/

autopatches/

20160711.files.01.builtin.sql

2 lines

20160711.files.02.builtinkey.sql

2 lines

src/

applications/

files/

query/

PhabricatorFileQuery.php

13 lines

storage/

PhabricatorFile.php

38 lines

Diff 39143

resources/sql/autopatches/20160711.files.01.builtin.sql

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resources/sql/autopatches/20160711.files.02.builtinkey.sql

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src/applications/files/query/PhabricatorFileQuery.php

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src/applications/files/storage/PhabricatorFile.php

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