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Differential D15789

Don't retry queries on connections holding global locks
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Authored by epriestley on Apr 24 2016, 3:33 PM.
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Reviewers
chad
Maniphest Tasks
T10860: After an inconsistent cluster repository write, consider just ignoring the lock
Commits
rPHU4b44d03ba60c: Don't retry queries on connections holding global locks
Summary

Ref T10860. Currently, if we lose a connection that is holding a MySQL global lock, we may retry the query automatically.

Instead, we should abort, just like we do if we were in the middle of a transaction. Otherwise, code may still think it has the lock and do unsafe things.

Test Plan

See next revision.

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rPHU libphutil
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Event Timeline

epriestley updated this revision to Diff 38036.Apr 24 2016, 3:33 PM
epriestley retitled this revision from to Don't retry queries on connections holding global locks.
epriestley updated this object.
epriestley edited the test plan for this revision. (Show Details)
epriestley added a reviewer: chad.
epriestley added a task: T10860: After an inconsistent cluster repository write, consider just ignoring the lock.
chad accepted this revision.Apr 24 2016, 4:09 PM
chad edited edge metadata.
This revision is now accepted and ready to land.Apr 24 2016, 4:09 PM
epriestley mentioned this in T10860: After an inconsistent cluster repository write, consider just ignoring the lock.Apr 24 2016, 6:39 PM
Closed by commit rPHU4b44d03ba60c: Don't retry queries on connections holding global locks (authored by epriestley, committed by epriestley). · Explain WhyApr 25 2016, 6:20 PM
This revision was automatically updated to reflect the committed changes.
epriestley mentioned this in T10751: Make Phabricator Highly Available.Apr 26 2016, 3:18 AM

Revision Contents
Changeset List

PathSize
src/
aphront/
storage/
connection/
43 lines
mysql/
14 lines

Diff 38049

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src/aphront/storage/connection/AphrontDatabaseConnection.php

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src/aphront/storage/connection/mysql/AphrontBaseMySQLDatabaseConnection.php

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