Configuring Postgres Workload Report v1

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To reduce the number of command-line arguments needed when executing pwr, you can use a configuration file to specify options that always have the same value and whose values differ from the default.

Note

edb-lasso requires a configuration file to be present to work properly. If it's not configured correctly, pwr will fail to complete. See the Lasso documentation for more information on how to configure it.

Configuration file locations

Postgres Workload Report looks for a configuration file in the following places and uses the first one found:

  1. The file named in the --config command-line option, if given.
  2. The file named in the PWR_CONFIG_FILE environment variable, if set.
  3. ~/.pwr.conf.
  4. /etc/pwr.conf.

The installation package creates a template for the configuration file in /etc/pwr.conf.templ. We recommend copying this file to one of the two places where Postgres Workload Report looks for a configuration file by default (~/.pwr.conf and /etc/pwr.conf), and editing the options in the template as necessary.

Note

If no configuration file is found, Postgres Workload Report assumes the default value for all options, which you can still override using the corresponding command-line options. See Using Postgres Workload Report for more on using command-line options.

Note

Although the configuration file extension is .conf, its content must be in valid YAML format.

Configuration file options

input_dir

An existing directory where the edb_wait_states portion of a Lasso report is located. This option is used mainly for pwr report execution (see Using Postgres Workload Report).

output_dir

Location of the directory where Postgres Workload Report writes report files. Executing pwr creates this directory if it doesn't exist.

report_name

The name of the report files generated. Usually, you specify this option on the command line because different reports typically have different names.

Don't include a file extension. An appropriate extension is added based on the output formats specified on the command line (that is, --pdf adds .pdf, --html adds .html, and so on).

log_file

The full path to the file where Postgres Workload Report writes the stdout and stderr logs.

log_level

The logging level to use when running Postgres Workload Report. The following are valid values, listed from more verbose to less verbose:

  • DEBUG
  • INFO (default if not specified)
  • WARNING
  • ERROR
  • CRITICAL

See the Python logging documentation for more information about log levels.

log_format

The format of the log messages that are written to the log file. See the Python logging documentation for more information on log formatting.

assets_dir

The directory containing the Jinja templates used to format the HTML output and the CSS used for PDF output. The default value is /usr/share/pwr/assets, which contains the assets provided with the edb-pwr package.

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