On Thu, Sep 24, 2020 at 2:39 AM Fujii Masao <masao.fujii@oss.nttdata.com> wrote:
> Does this patch work fine with warm-standby case using pg_standby?
> IIUC the startup process doesn't call WaitLatch() in that case, so ISTM that,
> with the patch, it cannot detect the postmaster death immediately.
Right, RestoreArchivedFile() uses system(), so I guess it can hang
around for a long time after unexpected postmaster exit on every OS if
the command waits. To respond to various kinds of important
interrupts, I suppose that'd ideally use something like
OpenPipeStream() and a typical WaitLatch() loop with CFI(). I'm not
sure what our policy is or should be for exiting while we have running
subprocesses. I guess that is a separate issue.
Here's a rebase, no code change.
