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Since 7c4f52409a8c (merged in v10), a shutdown master is reported as FATAL: unexpected result after CommandComplete: server closed the connection unexpectedly by walsender. It used to be LOG: replication terminated by primary server FATAL: could not send end-of-streaming message to primary: no COPY in progress while the old message clearly is not perfect, it's definitely better than what's reported now. The change comes from the attempt to handle finished COPYs without erroring out, needed for the new logical replication, which wasn't needed before. There's probably better ways to handle this, but for now just explicitly check for a closed connection. Author: Petr Jelinek Reviewed-By: Andres Freund Discussion: https://postgr.es/m/f7c7dd08-855c-e4ed-41f4-d064a6c0665a@2ndquadrant.com Backpatch: -
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/.