3c485ca8e6
Add a postmaster_is_alive() test to the wait loop, so that we stop waiting if the postmaster dies without removing its pidfile. Unfortunately this only helps after the postmaster has created its pidfile, since until then we don't know which PID to check. But if it never does create the pidfile, we can give up in a relatively short time, so this is a useful addition in practice. Per suggestion from Fujii Masao, though this doesn't look very much like his patch. In addition, improve pg_ctl's ability to cope with pre-existing pidfiles. Such a file might or might not represent a live postmaster that is going to block our postmaster from starting, but the previous code pre-judged the situation and gave up waiting immediately. Now, we will wait for up to 5 seconds to see if our postmaster overwrites such a file. This issue interacts with Fujii's patch because we would make the wrong conclusion if we did the postmaster_is_alive() test with a pre-existing PID. All of this could be improved if we rewrote start_postmaster() so that it could report the child postmaster's PID, so that we'd know a-priori the correct PID to test with postmaster_is_alive(). That looks like a bit too much change for so late in the 9.1 development cycle, unfortunately. |
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| GNUmakefile.in | ||
| Makefile | ||
| README | ||
| README.git | ||
| aclocal.m4 | ||
| configure | ||
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README
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: http://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. Changes between all PostgreSQL releases are recorded in the file HISTORY. 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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.