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From "Bill Farner" <>
Subject Re: Review Request 42613: Enable READ COMMITTED transaction isolation.
Date Thu, 21 Jan 2016 20:40:11 GMT

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(Updated Jan. 21, 2016, 12:40 p.m.)

Review request for Aurora, John Sirois and Zameer Manji.

Bugs: AURORA-1580

Repository: aurora


Proposing this as the minimal fix for AURORA-1580.  I think it's wise, however, to look towards
the alternative approach i described in that ticket for simplicity and performance gains.

I'd like to note that after this change, it will be important to treat long-running transactions
carefully.  It will be important to avoid transactions block others by writing (locking a
table) and subsequently doing other lengthy work.

Diffs (updated)

  src/main/java/org/apache/aurora/scheduler/storage/db/ 2b3ee7bf6f7801c140f921b25f78daf6d320098a

  src/main/resources/org/apache/aurora/scheduler/storage/db/TaskMapper.xml e689cfeda39e1f065ed29c61a23376512df8f3aa

  src/test/java/org/apache/aurora/scheduler/storage/ 3dba286556ab6ea34b7fdd38508a164c902d9d17




Bill Farner

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