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On slow machines, this test can take long enough to generate WAL that a time-based checkpoint occurs before the primary is stopped. If the checkpoint record is written to the tail WAL segment that the test later removes, a standby initialized from the resulting backup tries to read the missing checkpoint record and fails with a PANIC during startup. This caused the test to fail on buildfarm member skink. Fix this by setting checkpoint_timeout high enough to prevent unrelated checkpoints during the test. This follows the approach used by other recovery tests, such as 043_no_contrecord_switch.pl, that depend on a specific WAL layout. Backpatch to all supported versions. Reported-by: Alexander Lakhin <exclusion@gmail.com> Author: Fujii Masao <masao.fujii@gmail.com> Discussion: https://postgr.es/m/CAHGQGwFajfjKhvNSTkTcE-wFn30p_A0_i1cvk-Q=FJhDr_5cXA@mail.gmail.com Discussion: https://postgr.es/m/9ffdb19a-7a89-424e-925a-dd981c37f0ba@gmail.com Backpatch-through: 14
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/.