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By default, wal_retrieve_retry_interval is five seconds, which is far more than is needed in any of our TAP tests, leaving the test cases just twiddling their thumbs for significant stretches. Moreover, because it's so large, we get basically no testing of the retry-before- master-is-ready code path. Hence, make PostgresNode::init set up wal_retrieve_retry_interval = '500ms' as part of its customization of test clusters' postgresql.conf. This shaves quite a few seconds off the runtime of the recovery TAP tests. Back-patch into 9.6. We have wal_retrieve_retry_interval in 9.5, but the test infrastructure isn't there. Discussion: https://postgr.es/m/31624.1498500416@sss.pgh.pa.us
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/.