Hammerpost Agent

The hammerpost-agent tool works with hammerpost. This tool adds parameters to PostgreSQL via ALTER SYSTEM. If the database type is MySQL then it appends the given parameters to the my.cnf file for MySQL. This tool also restarts PostgreSQL or MySQL after applying the given parameter set. It is also responsible for collecting node metrics like CPU and Memory while running the HammerDB workload.

Quick Setup

    This tool requires a minimum version of Go 1.18 or higher to function.
    Please build the binaries using the supported Go version.

1. Install golang 1.18

    $ sudo yum install golang
   

2. Clone this repo and make

    $ git clone https://github.com/dineshkumar02/hammerpost-agent.git
    $ cd hammerpost-agent
    $ make
   

3. Start the agent by providing start-cmd, stop-cmd

Example

./hammerpost-agent --stop-cmd "/usr/pgsql-15/bin/pg_ctl -D /var/lib/pgsql/15/data stop -mf" --start-cmd "/usr/pgsql-15/bin/pg_ctl -D /var/lib/pgsql/15/data start -l /tmp/startup.log" --pgdsn "postgres://postgres:postgres@localhost:5432/postgres" --db-type postgres

Usage

Option	Usage
--listen	listen address for the hammerpost-agent
--start-cmd	Start command which starts the database
--stop-cmd	Stop command which stops the database
--pgdsn	PostgreSQL connection string which is running local
--my-cnf-path	Path to mysqld.cnf file
--db-type	mysql or postgres