Re: prevent immature WAL streaming

On 2021-Sep-14, Alvaro Herrera wrote:

> On 2021-Sep-08, Kyotaro Horiguchi wrote:
>
> > Thanks! As my understanding the new record add the ability to
> > cross-check between a teard-off contrecord and the new record inserted
> > after the teard-off record. I didn't test the version by myself but
> > the previous version implemented the essential machinery and that
> > won't change fundamentally by the new record.
> >
> > So I think the current patch deserves to see the algorithm actually
> > works against the problem.
>
> Here's a version with the new record type. It passes check-world, and
> it seems to work correctly to prevent overwrite of the tail end of a
> segment containing a broken record. This is very much WIP still;
> comments are missing and I haven't tried to implement any sort of
> verification that the record being aborted is the right one.

Here's the attachment I forgot earlier.

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Álvaro Herrera 39°49'30"S 73°17'W — https://www.EnterpriseDB.com/
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