Christian Ullrich <chris@xxxxxxxxxxxxxx> writes: > So, just to be sure, you're saying that when the ".ready" file is > created, it is guaranteed that no process will write to a location > within that segment anymore even if it happens to have the file open? > (That's actually completely obvious, but bear with me, please.) Right. > And further, that each such process will close the open file as soon as > it, intending to write WAL, finds out that the next available location > is not within the file? Yes, I believe it will typically hold the file open until that happens. (If short of file descriptors, it might close it sooner, but that's probably not common.) regards, tom lane -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin