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da626fb1fa
It seems like useless chatter. The endpoint.start() itself prints a "Running command ... neon_local endpoint start" message too.
66 lines
2.3 KiB
Python
66 lines
2.3 KiB
Python
import os
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import time
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import pytest
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from fixtures.log_helper import log
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from fixtures.neon_fixtures import (
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NeonEnv,
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logical_replication_sync,
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)
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from fixtures.pg_version import PgVersion
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def test_layer_bloating(neon_simple_env: NeonEnv, vanilla_pg):
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env = neon_simple_env
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if env.pg_version != PgVersion.V16:
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pytest.skip("pg_log_standby_snapshot() function is available only in PG16")
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timeline = env.neon_cli.create_branch("test_logical_replication", "empty")
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endpoint = env.endpoints.create_start(
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"test_logical_replication", config_lines=["log_statement=all"]
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)
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pg_conn = endpoint.connect()
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cur = pg_conn.cursor()
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# create table...
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cur.execute("create table t(pk integer primary key)")
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cur.execute("create publication pub1 for table t")
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# Create slot to hold WAL
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cur.execute("select pg_create_logical_replication_slot('my_slot', 'pgoutput')")
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# now start subscriber
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vanilla_pg.start()
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vanilla_pg.safe_psql("create table t(pk integer primary key)")
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connstr = endpoint.connstr().replace("'", "''")
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log.info(f"ep connstr is {endpoint.connstr()}, subscriber connstr {vanilla_pg.connstr()}")
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vanilla_pg.safe_psql(f"create subscription sub1 connection '{connstr}' publication pub1")
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cur.execute(
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"""create or replace function create_snapshots(n integer) returns void as $$
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declare
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i integer;
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begin
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for i in 1..n loop
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perform pg_log_standby_snapshot();
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end loop;
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end; $$ language plpgsql"""
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)
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cur.execute("set statement_timeout=0")
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cur.execute("select create_snapshots(10000)")
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# Wait logical replication to sync
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logical_replication_sync(vanilla_pg, endpoint)
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time.sleep(10)
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# Check layer file sizes
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timeline_path = "{}/tenants/{}/timelines/{}/".format(
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env.pageserver.workdir, env.initial_tenant, timeline
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)
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log.info(f"Check {timeline_path}")
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for filename in os.listdir(timeline_path):
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if filename.startswith("00000"):
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log.info(f"layer {filename} size is {os.path.getsize(timeline_path + filename)}")
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assert os.path.getsize(timeline_path + filename) < 512_000_000
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