Re: How to speed WAL apply in destination

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During certain interval there is huge WAL file generation f3om primary around 300gb/hr which delays sync in secondary by atleast 30 mins. Other time it is normal 

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On Fri, Dec 9, 2022 at 4:20 PM, Laurenz Albe
<laurenz.albe@xxxxxxxxxxx> wrote:
On Fri, 2022-12-09 at 08:47 +0000, Bryon Roché wrote:

> On December 9, 2022 5:02:59 AM UTC, SASIKUMAR Devaraj <sashikumard@xxxxxxxxx> wrote:
> > How to speed up WAL apply process in secondary? Any parameter available from postgres, apart from disk speed? 
> There are fsync parameters which can be set to off that may provide a modest speed increase, at the cost of removing crash safety.

That is spectacularly bad advice.

Is the disk the bottleneck at all?

Laurenz Albe

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