Hi Jerry. On Tue, Mar 23, 2021 at 12:25:35PM -0500, Jerry Sievers wrote: > Greetings! > > [...] > Suggestions re where to look next? Have you looked at the usual OS-level metrics yet? Does the process that applies the streamed WAL to the secondary's database exhibit high CPU load when the slowdown starts becoming noticeable? Check by using `top` and `mpstat`. Does I/O latency spike/increase during that time? Maybe your system is beginning to page data in and out? Check by using `iostat` and `vmstat`. If you can identify a/the metric that changes when your troubles begin to manifest, we should be able to help you drill down to the root cause of it all much better. -- with best regards: - Johannes Truschnigg ( johannes@xxxxxxxxxxxxxxx ) www: https://johannes.truschnigg.info/ phone: +43 650 2 133337 xmpp: johannes@xxxxxxxxxxxxxxx Please do not bother me with HTML-email or attachments. Thank you.
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