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Add python types to represent LSNs, tenant IDs and timeline IDs. (#2351)

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For better ergonomics. I always found it weird that we used UUID to
actually mean a tenant or timeline ID. It worked because it happened
to have the same length, 16 bytes, but it was hacky.
This commit is contained in:
Heikki Linnakangas
2022-09-02 10:16:47 +03:00
committed by GitHub
parent f0a0d7bb7a
commit 47bd307cb8
31 changed files with 599 additions and 494 deletions
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10
test_runner/performance/test_wal_backpressure.py
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@@ -9,7 +9,7 @@ from fixtures.benchmark_fixture import MetricReport, NeonBenchmarker
from fixtures.compare_fixtures import NeonCompare, PgCompare, VanillaCompare
from fixtures.log_helper import log
from fixtures.neon_fixtures import DEFAULT_BRANCH_NAME, NeonEnvBuilder, PgBin
from fixtures.utils import lsn_from_hex
from fixtures.types import Lsn
from performance.test_perf_pgbench import get_durations_matrix, get_scales_matrix
@@ -198,8 +198,8 @@ def record_lsn_write_lag(env: PgCompare, run_cond: Callable[[], bool], pool_inte
return
lsn_write_lags = []
last_received_lsn = 0
last_pg_flush_lsn = 0
last_received_lsn = Lsn(0)
last_pg_flush_lsn = Lsn(0)
with env.pg.connect().cursor() as cur:
cur.execute("CREATE EXTENSION neon")
@@ -218,11 +218,11 @@ def record_lsn_write_lag(env: PgCompare, run_cond: Callable[[], bool], pool_inte
res = cur.fetchone()
lsn_write_lags.append(res[0])
curr_received_lsn = lsn_from_hex(res[3])
curr_received_lsn = Lsn(res[3])
lsn_process_speed = (curr_received_lsn - last_received_lsn) / (1024**2)
last_received_lsn = curr_received_lsn
curr_pg_flush_lsn = lsn_from_hex(res[2])
curr_pg_flush_lsn = Lsn(res[2])
lsn_produce_speed = (curr_pg_flush_lsn - last_pg_flush_lsn) / (1024**2)
last_pg_flush_lsn = curr_pg_flush_lsn