Re: Use durable_unlink for .ready and .done files for WAL segmentremoval

On Thu, Nov 29, 2018 at 03:00:42PM +0000, Bossart, Nathan wrote:
> +1

Okay, here is an updated patch for this stuff, which does the following:
- Check for a WAL segment if it has a ".ready" status file, an orphaned
status file is removed only on ENOENT.
- If durable_unlink fails, retry 3 times.  If there are too many
failures, the archiver gives up on the orphan status file removal.  If
the removal works correctly, the archiver moves on to the next file.

(The variable names could be better.)
--
Michael