Alvaro Herrera <alvherre@alvh.no-ip.org> writes:
> Yeah, pg_dump in parallel mode uses a pipe to communicate between leader
> and workers; the error you see is what happens when a write to the pipe
> fails. It sounds to me like something in the operating system is
> preventing the pipes from working properly.
BTW, I think a more likely explanation is "one of the pg_dump or
pg_restore worker processes crashed". Why that should be is still
a mystery though.
regards, tom lane
