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During XLOG_HASH_SPLIT_ALLOCATE_PAGE replay, we were checking for a cleanup lock on the new bucket page after acquiring an exclusive lock on it and raising a PANIC error on failure. However, it is quite possible that checkpointer can acquire the pin on the same page before acquiring a lock on it, and then the replay will lead to an error. So instead, directly acquire the cleanup lock on the new bucket page during XLOG_HASH_SPLIT_ALLOCATE_PAGE replay operation. Reported-by: Andres Freund Author: Robert Haas Reviewed-By: Amit Kapila, Andres Freund, Vignesh C Backpatch-through: 11 Discussion: https://postgr.es/m/20220810022617.fvjkjiauaykwrbse@awork3.anarazel.de |
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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. 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/.