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PgBouncer dev tree
Home Page: https://pgbouncer.github.io
License: Other
This project forked from pgbouncer/pgbouncer
PgBouncer dev tree
Home Page: https://pgbouncer.github.io
License: Other
PgBouncer ========= Lightweight connection pooler for PostgreSQL. Homepage: https://pgbouncer.github.io/ Sources, bugtracking: https://github.com/pgbouncer/pgbouncer/ Building --------- GNU Make 3.81+ is required for building. PgBouncer uses libevent for low-level socket handling. Libevent needs to be at least version 1.3b. Preferably 2.x as Libevent 2.x has proper async DNS implementation. When this is installed just run: $ ./configure --prefix=/usr/local --with-libevent=libevent-prefix $ make $ make install If the OS does not have libevent available as package, it can be downloaded from http://monkey.org/~provos/libevent/ If you are building from git, or are building for Windows, please see separate build instructions below. DNS lookup support ------------------ Starting from PgBouncer 1.4, it does hostname lookups at connect time instead just once at config load time. This requires proper async DNS implementation. Following list shows supported backends and their probing order: .DNS backends [options="header"] |=========================================================================================== | backend | parallel | EDNS0 (1) | /etc/hosts | SOA lookup (2) | note | c-ares | yes | yes | yes | yes | ipv6+CNAME buggy in <=1.10 | udns | yes | yes | no | yes | ipv4-only | evdns, libevent 2.x | yes | no | yes | no | does not check /etc/hosts updates | getaddrinfo_a, glibc 2.9+ | yes | yes (3) | yes | no | N/A on non-linux | getaddrinfo, libc | no | yes (3) | yes | no | N/A on win32, requires pthreads | evdns, libevent 1.x | yes | no | no | no | buggy |=========================================================================================== 1. EDNS0 is required to have more than 8 addresses behind one hostname. 2. SOA lookup is needed to re-check hostnames on zone serial change 3. To enable EDNS0, add `options edns0` to /etc/resolv.conf `./configure` also has flags `--enable-evdns` and `--disable-evdns` which turn off automatic probing and force use of either `evdns` or `getaddrinfo_a()`. Building from GIT ----------------- Building PgBouncer from GIT requires that you fetch libusual submodule and generate the header and config files before you can run configure: $ git clone git://git.postgresql.org/git/pgbouncer.git $ cd pgbouncer $ git submodule init $ git submodule update $ ./autogen.sh $ ./configure ... $ make $ make install Additional packages required: autoconf, automake, libtool, autoconf-archive, asciidoc 8.x, xmlto, and pkg-config. Building for WIN32 ------------------ At the moment only build env tested is MINGW32 / MSYS. Cygwin and Visual $ANYTHING are untested. Libevent 2.x is required for DNS hostname lookup. Then do the usual: $ ./configure ... $ make If cross-compiling from Unix: $ ./configure --host=i586-mingw32msvc ... Running on WIN32 ---------------- Running from command-line goes as usual, except -d (daemonize), -R (reboot) and -u (switch user) switches will not work. To run pgbouncer as a Windows service, you need to configure `service_name` parameter to set name for service. Then: $ pgbouncer -regservice config.ini To uninstall service: $ pgbouncer -unregservice config.ini To use Windows Event Log, set "syslog = 1" in config file. But before you need to register pgbevent.dll: $ regsvr32 pgbevent.dll To unregister it, do `regsvr32 /u pgbevent.dll`.
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