On 2017-09-20 20:27:05 -0700, Lukas Fittl wrote:
> As per the bug report at
> https://www.postgresql.org/message-id/20170921010956.17345.61461%40wrigleys.postgresql.org
> it seems that the query cancellation holdoff logic in ProcessInterrupts is
> a bit overly aggressive in keeping other interrupts from running.
> In particular I've seen an issue in the wild where
> idle_in_transaction_session_timeout did not get triggered because
> the HOLD_CANCEL_INTERRUPTS() in SocketBackend wraps around a pq_getbyte()
> call, and so ProcessInterrupts doesn't do anything when it gets called
> because the query cancel holdoff counter is positive.
> Andres suggested the following re-ordering of the logic on -bugs:

I've pushed this. Thanks for the report & fix!


Andres Freund

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