mirror of
https://github.com/neondatabase/neon.git
synced 2026-01-05 20:42:54 +00:00
5bd8e2363a
This will help to keep us from using deprecated Python features going forward. Signed-off-by: Tristan Partin <tristan@neon.tech>
38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
# This test spawns pgbench in a thread in the background and concurrently restarts pageserver,
|
|
# checking how client is able to transparently restore connection to pageserver
|
|
#
|
|
|
|
from __future__ import annotations
|
|
|
|
import threading
|
|
import time
|
|
|
|
from fixtures.log_helper import log
|
|
from fixtures.neon_fixtures import NeonEnv, PgBin
|
|
|
|
|
|
# Test restarting page server, while safekeeper and compute node keep
|
|
# running.
|
|
def test_pageserver_restarts_under_worload(neon_simple_env: NeonEnv, pg_bin: PgBin):
|
|
env = neon_simple_env
|
|
env.create_branch("test_pageserver_restarts")
|
|
endpoint = env.endpoints.create_start("test_pageserver_restarts")
|
|
n_restarts = 10
|
|
scale = 10
|
|
|
|
def run_pgbench(connstr: str):
|
|
log.info(f"Start a pgbench workload on pg {connstr}")
|
|
pg_bin.run_capture(["pgbench", "-i", "-I", "dtGvp", f"-s{scale}", connstr])
|
|
pg_bin.run_capture(["pgbench", f"-T{n_restarts}", connstr])
|
|
|
|
thread = threading.Thread(target=run_pgbench, args=(endpoint.connstr(),), daemon=True)
|
|
thread.start()
|
|
|
|
for _ in range(n_restarts):
|
|
# Stop the pageserver gracefully and restart it.
|
|
time.sleep(1)
|
|
env.pageserver.stop()
|
|
env.pageserver.start()
|
|
|
|
thread.join()
|