When walsender finishes streaming during shutdown, it sends a CommandComplete message to tell the receiver that WAL streaming is done. Previously, that path used EndCommand() followed by pq_flush(). Those functions can block indefinitely waiting for the socket to become writeable. As a result, even when wal_sender_shutdown_timeout is set, walsender could remain stuck while sending the final completion message, and the shutdown timeout would not be enforced. Fix this by introducing EndCommandExtended(), which allows CommandComplete to be queued with pq_putmessage_noblock(), and by using the walsender nonblocking flush path instead of pq_flush(), so the shutdown timeout continues to be checked while pending output is flushed. Per CI testing on FreeBSD. Reported-by: Andres Freund <andres@anarazel.de> Author: Fujii Masao <masao.fujii@gmail.com> Reviewed-by: Chao Li <li.evan.chao@gmail.com> Discussion: https://postgr.es/m/vwlugmsogfn36jhm56zwrgd7m6xe6ircltvfh3kzt6kldvbtht@f45dgow5uhnx |
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| configure | ||
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| COPYRIGHT | ||
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| HISTORY | ||
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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.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.