February 2020
Intermediate to advanced
734 pages
38h 13m
English
Content preview from PostgreSQL 12 High Availability Cookbook - Third Edition
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Getting ready
As the Telegraf PostgreSQL module needs to log in to a database within the cluster to gather its statistics, we should create a user specifically for this purpose. Execute these SQL queries to create a user with an appropriate password and all the necessary permissions to read all statistics:
CREATE USER perf_mon WITH PASSWORD 'testpw'; GRANT pg_read_all_stats TO perf_mon;
In addition, follow the instructions in the Installing and configuring Telegraf recipe so that there is a fully functional Telegraf data collector.
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