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tests: fix flakiness: walreceiver triggered on-demand downloads after evictions

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This commit is contained in:
Christian Schwarz
2023-03-30 13:58:41 +02:00
parent 6dab4f3539
commit cbaba7c089
1 changed files with 13 additions and 1 deletions
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14
test_runner/regress/test_disk_usage_eviction.py
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@@ -160,6 +160,7 @@ def eviction_env(request, neon_env_builder: NeonEnvBuilder, pg_bin: PgBin) -> Ev
pgbench_init_lsns = {}
created = []
for scale in pgbench_scales:
tenant_id, timeline_id = env.neon_cli.create_tenant(
conf={
@@ -175,6 +176,15 @@ def eviction_env(request, neon_env_builder: NeonEnvBuilder, pg_bin: PgBin) -> Ev
pg_bin.run(["pgbench", "-i", f"-s{scale}", pg.connstr()])
wait_for_last_flush_lsn(env, pg, tenant_id, timeline_id)
created.append((tenant_id, timeline_id))
# stop the safekeepers to avoid on-demand downloads caused by
# initial logical size calculation triggered by walreceiver connection status
# when we restart the pageserver process in any of the tests
env.neon_cli.safekeeper_stop()
# after stopping the safekeepers, we know that no new WAL will be coming in
for tenant_id, timeline_id in created:
pageserver_http.timeline_checkpoint(tenant_id, timeline_id)
wait_for_upload_queue_empty(env.pageserver, tenant_id, timeline_id)
tl_info = pageserver_http.timeline_detail(tenant_id, timeline_id)
@@ -184,7 +194,9 @@ def eviction_env(request, neon_env_builder: NeonEnvBuilder, pg_bin: PgBin) -> Ev
layers = pageserver_http.layer_map_info(tenant_id, timeline_id)
log.info(f"{layers}")
assert len(layers.historic_layers) >= 4
assert (
len(layers.historic_layers) >= 10
), "evictions happen at layer granularity, but we often assert at byte-granularity"
timelines.append((tenant_id, timeline_id))