Re: deadlock in single-row select-for-update + update scenario? How could it happen?

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От hubert depesz lubaczewski
Тема Re: deadlock in single-row select-for-update + update scenario? How could it happen?
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Msg-id CAKrjmhd34dzZrStCC9A3LZucWTEFNtiYBSuii08kOuY6H9wKAg@mail.gmail.com
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Ответ на Re: deadlock in single-row select-for-update + update scenario? How could it happen?  (Adrian Klaver <adrian.klaver@aklaver.com>)
Ответы Re: deadlock in single-row select-for-update + update scenario? How could it happen?
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On Fri, Aug 22, 2014 at 7:20 PM, Adrian Klaver <adrian.klaver@aklaver.com> wrote:
So why are different processes running the exact same queries coming in on different ports?

the importer is parallelized, and sometimes two processes handle batches of data that happen to update the same "top level row".

but the deadlocking problem is happening only on one machine, though very repeatably.

depesz

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