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Buildfarm animals francolin and kestrel reported intermittent failures in 035_standby_logical_decoding.pl. The test checks that replaying DROP DATABASE on a standby terminates pg_recvlogical with the expected recovery-conflict message and removes the database's replication slots. To exercise this while pg_recvlogical is streaming, the test must wait for streaming to start before dropping the database on the primary. Previously, the test treated an active slot in pg_replication_slots as confirmation that pg_recvlogical was streaming. However, the slot can become active before pg_recvlogical has entered streaming mode. If DROP DATABASE is replayed during this window, pg_recvlogical can report a connection-closed error instead of the recovery-conflict message, causing the test to fail. Run pg_recvlogical with --verbose and wait for "streaming initiated" instead of checking whether the slot is active. This ensures that pg_recvlogical has entered streaming mode before the database is dropped on the primary. Back-patch to v16, where this test was introduced. Reported-by: Alexander Lakhin <exclusion@gmail.com> Author: Hayato Kuroda <kuroda.hayato@fujitsu.com> Reviewed-by: Alexander Lakhin <exclusion@gmail.com> Reviewed-by: Bertrand Drouvot <bertranddrouvot.pg@gmail.com> Reviewed-by: Fujii Masao <masao.fujii@gmail.com> Discussion: https://postgr.es/m/a50ff89b-fb2c-4912-8f89-50dd0bd0916b@gmail.com Backpatch-through: 16
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/.