| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com> |
| Cc: | Pg Hackers <pgsql-hackers(at)postgresql(dot)org>, Andres Freund <andres(at)anarazel(dot)de> |
| Subject: | Re: PathNameCreateTemporaryDir() vs concurrency |
| Date: | 2017-12-27 19:01:07 |
| Message-ID: | CA+TgmobmvG_VrYu6uhipCDKQYsp+KANkwQ4dXTjFuKS0NigRnQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Dec 26, 2017 at 3:11 AM, Thomas Munro
<thomas(dot)munro(at)enterprisedb(dot)com> wrote:
> While testing parallel hash join today, I saw a couple of errors like this:
>
> 2017-12-26 23:34:37.402 NZDT [13082] ERROR: cannot create temporary
> subdirectory "base/pgsql_tmp/pgsql_tmp13080.0.sharedfileset": File
> exists
>
> There is a thinko in PathNameCreateTemporaryDir(), a new function
> added in commit dc6c4c9d. It was designed to tolerate directories
> existing already but forgot to handle it in the third mkdir call, so
> it fails with unlucky timing. Please see attached.
Committed.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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