Hi, On 2022-10-07 20:35:58 -0400, Tom Lane wrote: > Andres Freund <and...@anarazel.de> writes: > > Why are we even tracking PM_CHILD_UNUSED / PM_CHILD_ASSIGNED in shared > > memory? > > Because those flags are set by the child processes too, cf > MarkPostmasterChildActive and MarkPostmasterChildInactive.
Only PM_CHILD_ACTIVE and PM_CHILD_WALSENDER though. We could afford another MaxLivePostmasterChildren() sized array... > > Are you thinking these should be backpatched? > > I am, but I'm not inclined to push this immediately before a wrap. +1 > If we intend to wrap 15.0 on Monday then I'll wait till after that. > OTOH, if we slip that a week, I'd be okay with pushing in the > next day or two. Makes sense. - Andres
