On Tue, Jul 16, 2019 at 12:21 PM Tom Lane <t...@sss.pgh.pa.us> wrote: > In the meantime, we've had *lots* of buildfarm failures in the > added pg_stat_all_tables query, which indicate that indeed the > stats collector mechanism isn't terribly reliable. But that > doesn't directly prove anything about the original problem, > since the planner doesn't look at stats collector data.
I noticed that if you look at the list of failures of this type, there are often pairs of animals belonging to Andres that failed at the same time. I wonder if he might be running a bunch of animals on one kernel, and need to increase net.core.rmem_max and net.core.rmem_default (or maybe the write side variants, or both, or something like that). -- Thomas Munro https://enterprisedb.com
