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Prevent flip-flop of standby_horizon by ignoring 0 LSN and resetting it after each GC iteration

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This commit is contained in:
Konstantin Knizhnik
2024-01-30 11:10:40 +02:00
parent 22a0a6ba0c
commit f24b898bef
13 changed files with 104 additions and 39 deletions
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6
test_runner/regress/test_replication_lag.py
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@@ -7,12 +7,12 @@ from fixtures.neon_fixtures import NeonEnv, PgBin, wait_replica_caughtup
def test_replication_lag(neon_simple_env: NeonEnv, pg_bin: PgBin):
env = neon_simple_env
n_iterations = 10
n_iterations = 60
# Use aggressive GC and checkpoint settings
tenant, _ = env.neon_cli.create_tenant(
conf={
"gc_period": "5 s",
"gc_period": "15 s", # should not be smaller than wal_receiver_status_interval
"gc_horizon": f"{1024 ** 2}",
"checkpoint_distance": f"{1024 ** 2}",
"compaction_target_size": f"{1024 ** 2}",
@@ -23,7 +23,7 @@ def test_replication_lag(neon_simple_env: NeonEnv, pg_bin: PgBin):
def run_pgbench(connstr: str):
log.info(f"Start a pgbench workload on pg {connstr}")
pg_bin.run_capture(["pgbench", "-T30", connstr])
pg_bin.run_capture(["pgbench", "-T60", connstr])
with env.endpoints.create_start(
branch_name="main", endpoint_id="primary", tenant_id=tenant