Files
neon/test_runner/regress/test_subscriber_restart.py
Alexander Lakhin 977781e423 Enable sanitizers for postgres v17 (#10401)
Add a build with sanitizers (asan, ubsan) to the CI pipeline and run
tests on it.

See https://github.com/neondatabase/neon/issues/6053

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Co-authored-by: Alexander Bayandin <alexander@neon.tech>
2025-02-06 12:53:43 +00:00

62 lines
2.3 KiB
Python

from __future__ import annotations
import threading
import time
import pytest
from fixtures.neon_fixtures import NeonEnv
from fixtures.utils import wait_until
# This test checks of logical replication subscriber is able to correctly restart replication without receiving duplicates.
# It requires tracking information about replication origins at page server side
@pytest.mark.timeout(900) # This test is slow with sanitizers enabled, especially on ARM
def test_subscriber_restart(neon_simple_env: NeonEnv):
env = neon_simple_env
env.create_branch("publisher")
pub = env.endpoints.create("publisher")
pub.start()
sub_timeline_id = env.create_branch("subscriber")
sub = env.endpoints.create("subscriber")
sub.start()
n_records = 100000
n_restarts = 100
def check_that_changes_propagated():
scur.execute("SELECT count(*) FROM t")
res = scur.fetchall()
assert res[0][0] == n_records
def insert_data(pub):
with pub.cursor() as pcur:
for i in range(0, n_records):
pcur.execute("INSERT into t values (%s,random()*100000)", (i,))
with pub.cursor() as pcur:
with sub.cursor() as scur:
pcur.execute("CREATE TABLE t (pk integer primary key, sk integer)")
pcur.execute("CREATE PUBLICATION pub FOR TABLE t")
scur.execute("CREATE TABLE t (pk integer primary key, sk integer)")
# scur.execute("CREATE INDEX on t(sk)") # slowdown applying WAL at replica
pub_conn = f"host=localhost port={pub.pg_port} dbname=postgres user=cloud_admin"
query = f"CREATE SUBSCRIPTION sub CONNECTION '{pub_conn}' PUBLICATION pub"
scur.execute(query)
time.sleep(2) # let initial table sync complete
thread = threading.Thread(target=insert_data, args=(pub,), daemon=True)
thread.start()
for _ in range(n_restarts):
# restart subscriber
# time.sleep(2)
sub.stop("immediate", sks_wait_walreceiver_gone=(env.safekeepers, sub_timeline_id))
sub.start()
thread.join()
pcur.execute(f"INSERT into t values ({n_records}, 0)")
n_records += 1
with sub.cursor() as scur:
wait_until(check_that_changes_propagated)