mirror of
https://github.com/neondatabase/neon.git
synced 2026-06-04 22:10:39 +00:00
768c8d9972
this failure case was probably introduced by b220ba6, because earlier
the gc would always have run fast enough for restart every 1s. however,
test got added later, so we have just been lucky.
fixes #3824 by allowing this error to happen.
42 lines
1.5 KiB
Python
42 lines
1.5 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
|
|
#
|
|
import threading
|
|
import time
|
|
|
|
from fixtures.log_helper import log
|
|
from fixtures.neon_fixtures import NeonEnv, PgBin, Postgres
|
|
|
|
|
|
# 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.neon_cli.create_branch("test_pageserver_restarts")
|
|
pg = env.postgres.create_start("test_pageserver_restarts")
|
|
n_restarts = 10
|
|
scale = 10
|
|
|
|
# the background task may complete the init task delay after finding an
|
|
# active tenant, but shutdown starts right before Tenant::gc_iteration
|
|
env.pageserver.allowed_errors.append(
|
|
r".*Gc failed, retrying in \S+: Cannot run GC iteration on inactive tenant"
|
|
)
|
|
|
|
def run_pgbench(pg: Postgres):
|
|
connstr = pg.connstr()
|
|
log.info(f"Start a pgbench workload on pg {connstr}")
|
|
pg_bin.run_capture(["pgbench", "-i", f"-s{scale}", connstr])
|
|
pg_bin.run_capture(["pgbench", f"-T{n_restarts}", connstr])
|
|
|
|
thread = threading.Thread(target=run_pgbench, args=(pg,), daemon=True)
|
|
thread.start()
|
|
|
|
for i in range(n_restarts):
|
|
# Stop the pageserver gracefully and restart it.
|
|
time.sleep(1)
|
|
env.pageserver.stop()
|
|
env.pageserver.start()
|
|
|
|
thread.join()
|