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Tom Lane 647675228f Fix race condition in recovery/t/009_twophase.pl test. 
Since reducing pg_ctl's reaction time in commit c61559ec3, some
slower buildfarm members have shown erratic failures in this test.
The reason turns out to be that the test assumes synchronous
replication (because it does not provide any lag time for a commit
to replicate before shutting down the servers), but it had only
enabled sync rep in one direction.  The observed symptoms correspond
to failure to replicate the last committed transaction in the other
direction, which can be expected to happen if the shutdown command
is issued soon enough and we are providing no synchronous-commit
guarantees.

Fix that, and add a bit more paranoid state checking at the bottom
of the script.

Michael Paquier and myself

Discussion: https://postgr.es/m/908.1498965681@sss.pgh.pa.us
2017-07-02 22:01:19 -04:00
config Make configure check for IPC::Run when --enable-tap-tests is specified. 2017-06-15 15:56:12 -04:00
contrib Fix typo in comment 2017-06-30 14:51:15 -04:00
doc doc: Document that logical replication supports synchronous replication 2017-07-02 00:10:57 -04:00
src Fix race condition in recovery/t/009_twophase.pl test. 2017-07-02 22:01:19 -04:00
.dir-locals.el emacs: Set indent-tabs-mode in perl-mode 2015-04-12 23:53:23 -04:00
.gitattributes Remove contrib/tsearch2. 2017-02-13 11:06:11 -05:00
.gitignore Allow .so minor version numbers above 9 in .gitignore. 2016-08-15 17:35:35 -04:00
aclocal.m4 Make configure check for IPC::Run when --enable-tap-tests is specified. 2017-06-15 15:56:12 -04:00
configure Make configure check for IPC::Run when --enable-tap-tests is specified. 2017-06-15 15:56:12 -04:00
configure.in Make configure check for IPC::Run when --enable-tap-tests is specified. 2017-06-15 15:56:12 -04:00
COPYRIGHT Update copyright for 2017 2017-01-03 12:37:53 -05:00
GNUmakefile.in Have "make coverage" recurse into contrib as well 2016-09-05 18:44:36 -03:00
HISTORY Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
Makefile Allow make check in PL directories 2011-02-15 06:52:12 +02:00
README Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
README.git Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00

README 

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/.