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Michael Paquier 5fc1008e8a Clean up temporary WAL segments after an instance crash 
Temporary WAL segments are created in pg_wal and named as xlogtemp.pid
before being renamed to the real deal when creating a new segment.  If
an instance crashes after the temporary segment is created and before
the rename is done, then the server would finish with unremovable data.

After an instance crash, scan pg_wal and remove any such segments.  With
repetitive unlucky crashes this would contribute to disk bloat and
presents risks of ENOSPC especially with max_wal_size close to the
maximum allowed.

Author: Michael Paquier
Reviewed-by: Yugo Nagata, Heikki Linnakangas
Discussion: https://postgr.es/m/20180514054955.GF1528@paquier.xyz
2018-07-13 06:43:20 +09:00
config Fix typos 2018-07-10 11:14:53 +02:00
contrib Rethink how to get float.h in old Windows API for isnan/isinf 2018-07-11 09:11:48 -04:00
doc Doc: minor improvement in pl/pgsql FETCH/MOVE documentation. 2018-07-12 12:29:03 -04:00
src Clean up temporary WAL segments after an instance crash 2018-07-13 06:43:20 +09:00
.dir-locals.el Make Emacs settings match perltidy configuration 2018-04-23 11:44:31 -04:00
.gitattributes Remove contrib/tsearch2. 2017-02-13 11:06:11 -05:00
.gitignore Support for optimizing and emitting code in LLVM JIT provider. 2018-03-22 11:05:22 -07:00
aclocal.m4 Add configure infrastructure (--with-llvm) to enable LLVM support. 2018-03-20 17:26:25 -07:00
configure Use signals for postmaster death on FreeBSD. 2018-07-11 13:14:07 +12:00
configure.in Use signals for postmaster death on FreeBSD. 2018-07-11 13:14:07 +12:00
COPYRIGHT Update copyright for 2018 2018-01-02 23:30:12 -05:00
GNUmakefile.in
HISTORY Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
Makefile Fix non-GNU makefiles for AIX make. 2017-11-30 00:57:22 -08:00
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/.