The package includes an object that you can use as a client for the locust.io load testing tool. The client can be used to write load testing workloads that automatically connect to a Vertica database.
The client also integrates with a graphite backend to be able to flow metrics to it.
Installation
To install this package:
pip install vertica_locust_client
Locust Command Line Parameters
This will automatically add parameters to locust that will control how to connect to Vertica and the graphite backend. These parameters are also exposed in the webUI.
--user ID of user to connect to Vertica with (defaults to dbadmin)
--password Password of the Vertica user ID (defaults to empty string)
--carbon-endpoint The carbon endpoint to connect to.
The endpoint is defined as: host[:port][,host[:port]...]
--carbon-namespace The namespace for the carbon metric. This is treated as
the prefix when constructing the full metric name.
Sample locustfile
Here is a sample locustfile.py to show the client in action. This will issue a simple query to count the number of sessions in the database.
from locust import task
from vertica_locust_client import VerticaUser
class SessionCounterUser(VerticaUser):
def __init__(self, environment):
super().__init__(environment)
@task
def query_users(self):
with self.client.make_cursor(carbon_metric="query") as cur:
cur.execute('''
select count(session_id) sessions
from v_monitor.sessions
where session_id not in (
select session_id
from current_session
)
''')
1 maintainer
Metadata
1 maintainer
Release files for vertica-locust-client 0.0.6
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