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6d7547c219
Attempting to open a file fails with ERROR_ACCESS_DENIED if the file is flagged for deletion but not yet actually gone (another in a long list of reasons why Windows is broken, if you ask me). This seems likely to explain a lot of irreproducible failures we see in the buildfarm. This state generally persists for only a millisecond or so, so just wait a bit and retry. If it's a real permissions problem, we'll eventually give up and report it as such. If it's the pending deletion case, we'll see file-not-found and report that after the deletion completes, and the caller will treat that in an appropriate way. In passing, rejigger the existing retry logic for some other error cases so that we don't uselessly wait an extra time when we're not going to retry anymore. Alexander Lakhin (with cosmetic tweaks by me). Back-patch to all supported branches, since this seems like a pretty safe change and the problem is definitely real. Discussion: https://postgr.es/m/16161-7a985d2f1bbe8f71@postgresql.org |
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PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.