On Mon, Mar 15, 2021 at 5:14 PM Fujii Masao <[email protected]> wrote: > Make archiver process an auxiliary process. > > This commit changes WAL archiver process so that it's treated as > an auxiliary process and can use shared memory. This is an infrastructure > patch required for upcoming shared-memory based stats collector patch > series. These patch series basically need any processes including archiver > that can report the statistics to access to shared memory. Since this patch > itself is useful to simplify the code and when users monitor the status of > archiver, it's committed separately in advance.
I think this needs to handle ProcSignalBarrierPending. Otherwise, code that tries to use proc signal barriers (like CF #2962 and #2602) might hang forever when an archiver is running.
