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5bd8e2363a
This will help to keep us from using deprecated Python features going forward. Signed-off-by: Tristan Partin <tristan@neon.tech>
64 lines
2.2 KiB
Python
64 lines
2.2 KiB
Python
from __future__ import annotations
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import os
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import shutil
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from fixtures.neon_fixtures import NeonEnv, PgBin
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from fixtures.utils import subprocess_capture
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def check_wal_segment(pg_waldump_path: str, segment_path: str, test_output_dir):
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# use special --ignore option to ignore the validation checks in pg_waldump
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# this is necessary, because neon WAL files contain gap at the beginning
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output_path, _, _ = subprocess_capture(
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test_output_dir, [pg_waldump_path, "--ignore", segment_path]
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)
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with open(f"{output_path}.stdout") as f:
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stdout = f.read()
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assert "ABORT" in stdout
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assert "COMMIT" in stdout
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# Simple test to check that pg_waldump works with neon WAL files
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def test_pg_waldump(neon_simple_env: NeonEnv, test_output_dir, pg_bin: PgBin):
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env = neon_simple_env
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tenant_id = env.initial_tenant
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timeline_id = env.initial_timeline
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endpoint = env.endpoints.create_start("main")
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cur = endpoint.connect().cursor()
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cur.execute(
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"""
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BEGIN;
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CREATE TABLE t1(i int primary key, n_updated int);
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INSERT INTO t1 select g, 0 from generate_series(1, 50) g;
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ROLLBACK;
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"""
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)
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cur.execute(
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"""
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BEGIN;
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CREATE TABLE t1(i int primary key, n_updated int);
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INSERT INTO t1 select g, 0 from generate_series(1, 50) g;
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COMMIT;
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"""
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)
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# stop the endpoint to make sure that WAL files are flushed and won't change
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endpoint.stop()
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assert endpoint.pgdata_dir
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wal_path = os.path.join(endpoint.pgdata_dir, "pg_wal/000000010000000000000001")
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pg_waldump_path = os.path.join(pg_bin.pg_bin_path, "pg_waldump")
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# check segment on compute
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check_wal_segment(pg_waldump_path, wal_path, test_output_dir)
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# Check file on safekeepers as well. pg_waldump is strict about file naming, so remove .partial suffix.
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sk = env.safekeepers[0]
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sk_tli_dir = sk.timeline_dir(tenant_id, timeline_id)
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non_partial_path = os.path.join(sk_tli_dir, "000000010000000000000001")
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shutil.copyfile(os.path.join(sk_tli_dir, "000000010000000000000001.partial"), non_partial_path)
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check_wal_segment(pg_waldump_path, non_partial_path, test_output_dir)
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