mirror of
https://github.com/pgadmin-org/pgadmin4.git
synced 2024-11-24 09:40:21 -06:00
73 lines
4.7 KiB
ReStructuredText
73 lines
4.7 KiB
ReStructuredText
.. _pgagent_install:
|
|
|
|
|
|
********************
|
|
`Installing pgAgent`
|
|
********************
|
|
|
|
pgAgent runs as a daemon on Unix systems, and a service on Windows systems. In most cases it will run on the database server itself - for this reason, pgAgent is not automatically configured when pgAdmin is installed. In some cases however, it may be preferable to run pgAgent on multiple systems, against the same database; individual jobs may be targeted at a particular host, or left for execution by any host. Locking prevents execution of the same instance of a job by multiple hosts.
|
|
|
|
Database setup
|
|
==============
|
|
|
|
Before using pgAdmin to manage pgAgent, you must create the pgAgent extension in the maintenance database registered with pgAdmin. To install pgAgent on a PostgreSQL host, connect to the *postgres* database, and navigate through the *Tools* menu to open the Query tool. For server versions 9.1 or later, and pgAgent 3.4.0 or later, enter the following command in the query window, and click the *Execute* icon::
|
|
|
|
CREATE EXTENSION pgagent;
|
|
|
|
This command will create a number of tables and other objects in a schema called 'pgagent'.
|
|
|
|
The database must also have the pl/pgsql procedural language installed - use the PostgreSQL CREATE LANGUAGE command to install pl/pgsql if necessary. To install pl/pgsql, enter the following command in the query window, and click the *Execute* icon::
|
|
|
|
CREATE LANGUAGE plpgsql;
|
|
|
|
If you are using an earlier version of PostgreSQL or pgAgent, use the *Open file* icon on the Query Tool toolbar to open a browser window and locate the *pgagent.sql* script. The installation script is installed by pgAdmin, and the installation location varies from operating system to operating system:
|
|
* On Windows, it is usually located under *C:\Program files\pgAdmin III* (or *C:\Program files\PostgreSQL\8.x\pgAdmin III* if installed with the PostgreSQL server installer).
|
|
* On Linux, it is usually located under */usr/local/pgadmin3/share/pgadmin3* or */usr/share/pgadmin3*.
|
|
|
|
After loading the file into the Query Tool, click the *Execute* icon to execute the script. The script will create a number of tables and other objects in a schema named *pgagent*.
|
|
|
|
Daemon installation on Unix
|
|
===========================
|
|
|
|
To install the pgAgent daemon on a Unix system, you will normally need to have root privileges to modify the system startup scripts. Modifying system startup scripts is quite system-specific so you should consult your system documentation for further information.
|
|
|
|
The program itself takes few command line options, most of which are only needed for debugging or specialised configurations::
|
|
|
|
Usage:
|
|
/path/to/pgagent [options] <connect-string>
|
|
|
|
options:
|
|
-f run in the foreground (do not detach from the terminal)
|
|
-t <poll time interval in seconds (default 10)>
|
|
-r <retry period after connection abort in seconds (>=10, default 30)>
|
|
-s <log file (messages are logged to STDOUT if not specified)>
|
|
-l <logging verbosity (ERROR=0, WARNING=1, DEBUG=2, default 0)>
|
|
|
|
The connection string is a standard PostgreSQL libpq connection string (see the `PostgreSQL documentation on the connection string <http://www.postgresql.org/docs/current/static/libpq.html#libpq-connect>`_ for further details). For example, the following command line will run pgAgent against a server listening on the localhost, using a database called 'pgadmin', connecting as the user 'postgres'::
|
|
|
|
/path/to/pgagent hostaddr=127.0.0.1 dbname=postgres user=postgres
|
|
|
|
Service installation on Windows
|
|
===============================
|
|
|
|
pgAgent can install itself as a service on Windows systems. The command line options available are similar to those on Unix systems, but include an additional parameter to tell the service what to do::
|
|
|
|
Usage:
|
|
pgAgent REMOVE <serviceName>
|
|
pgAgent INSTALL <serviceName> [options] <connect-string>
|
|
pgAgent DEBUG [options] <connect-string>
|
|
|
|
options:
|
|
-u <user or DOMAIN\user>
|
|
-p <password>
|
|
-d <displayname>
|
|
-t <poll time interval in seconds (default 10)>
|
|
-r <retry period after connection abort in seconds (>=10, default 30)>
|
|
-l <logging verbosity (ERROR=0, WARNING=1, DEBUG=2, default 0)>
|
|
|
|
The service may be quite simply installed from the command line as follows (adjust the path as required)::
|
|
|
|
"C:\Program Files\pgAdmin III\pgAgent" INSTALL pgAgent -u postgres -p secret hostaddr=127.0.0.1 dbname=postgres user=postgres
|
|
|
|
You can then start the service at the command line using *net start pgAgent*, or from the *Services* control panel applet. Any logging output or errors will be reported in the Application event log. The DEBUG mode may be used to run pgAgent from a command prompt. When run this way, log messages will output to the command window.
|