PostgreSQL discovery

Discovery can find running instances of PostgreSQL on Windows and Linux systems.

Credentials and other prerequisites

These credentials are required:

For both Discovery and Service Mapping, see Service Mapping commands requiring a privileged user for a list of the commands that require elevated rights to discover and map Unix-based hosts in your organization.

The user must have root-level access to the database to access the postgresql.conf file.
Warning: DO NOT switch from probes to patterns if you are already running discovery with probes and your CMDB is already populated. If you do, it is possible that the pattern discovery process does not synchronize on the same values that the probe discovery process does. The result could be duplicate CIs in your CMDB.

Classifiers, patterns, and probes

Classifier Trigger probes Patterns
PostgreSQL Instance
  • Horizontal Pattern: launches patterns
  • PostgreSQL - Configuration* (add the must_sudo parameter to this probe)
  • PostgreSQL - Version*

PostgreSQL DB

*For new instances, these probes are inactive on the classifier. Discovery uses patterns for discovery.

To use patterns, verify that the correct pattern is specified in the horizontal pattern probe on the classifier. See Add the Horizontal Pattern probe to a classifier for instructions.

Table 1. Data collected
Label Table Name Field Name Source
Name cmdb_ci_db_postgresql_instance name PostgreSQL Instance@hostname
Data Directory cmdb_ci_db_postgresql_instance data_dir running process
TCP port cmdb_ci_db_postgresql_instance tcp_port running process
SQL Configuration cmdb_ci_db_postgresql_instance postgres_conf data_directory/postgresql.conf
Version cmdb_ci_db_postgresql_instance version postmaster/postgres

Relationships

Parent class Relationship Child class
cmdb_ci_db_postgresql_instance Runs on:Runs cmdb_ci_windows_server or cmdb_ci_linux_server