Files
neon/test_runner/regress/test_timeline_delete.py
Heikki Linnakangas 538876650a Merge 'local' and 'remote' parts of TimelineInfo into one struct.
The 'local' part was always filled in, so that was easy to merge into
into the TimelineInfo itself. 'remote' only contained two fields,
'remote_consistent_lsn' and 'awaits_download'. I made
'remote_consistent_lsn' an optional field, and 'awaits_download' is now
false if the timeline is not present remotely.

However, I kept stub versions of the 'local' and 'remote' structs for
backwards-compatibility, with a few fields that are actively used by
the control plane. They just duplicate the fields from TimelineInfo
now. They can be removed later, once the control plane has been
updated to use the new fields.
2022-10-14 18:37:14 +03:00

78 lines
2.7 KiB
Python

import pytest
from fixtures.neon_fixtures import NeonEnv, NeonPageserverApiException, wait_until
from fixtures.types import TenantId, TimelineId
def test_timeline_delete(neon_simple_env: NeonEnv):
env = neon_simple_env
ps_http = env.pageserver.http_client()
# first try to delete non existing timeline
# for existing tenant:
invalid_timeline_id = TimelineId.generate()
with pytest.raises(NeonPageserverApiException, match="timeline not found"):
ps_http.timeline_delete(tenant_id=env.initial_tenant, timeline_id=invalid_timeline_id)
# for non existing tenant:
invalid_tenant_id = TenantId.generate()
with pytest.raises(
NeonPageserverApiException,
match=f"Tenant {invalid_tenant_id} not found in the local state",
):
ps_http.timeline_delete(tenant_id=invalid_tenant_id, timeline_id=invalid_timeline_id)
# construct pair of branches to validate that pageserver prohibits
# deletion of ancestor timelines when they have child branches
parent_timeline_id = env.neon_cli.create_branch("test_ancestor_branch_delete_parent", "empty")
leaf_timeline_id = env.neon_cli.create_branch(
"test_ancestor_branch_delete_branch1", "test_ancestor_branch_delete_parent"
)
ps_http = env.pageserver.http_client()
with pytest.raises(
NeonPageserverApiException, match="Cannot delete timeline which has child timelines"
):
timeline_path = (
env.repo_dir
/ "tenants"
/ str(env.initial_tenant)
/ "timelines"
/ str(parent_timeline_id)
)
assert timeline_path.exists()
ps_http.timeline_delete(env.initial_tenant, parent_timeline_id)
assert not timeline_path.exists()
timeline_path = (
env.repo_dir / "tenants" / str(env.initial_tenant) / "timelines" / str(leaf_timeline_id)
)
assert timeline_path.exists()
# retry deletes when compaction or gc is running in pageserver
wait_until(
number_of_iterations=3,
interval=0.2,
func=lambda: ps_http.timeline_delete(env.initial_tenant, leaf_timeline_id),
)
assert not timeline_path.exists()
# check 404
with pytest.raises(
NeonPageserverApiException,
match=f"Timeline {leaf_timeline_id} was not found for tenant {env.initial_tenant}",
):
ps_http.timeline_detail(env.initial_tenant, leaf_timeline_id)
# FIXME leaves tenant without timelines, should we prevent deletion of root timeline?
wait_until(
number_of_iterations=3,
interval=0.2,
func=lambda: ps_http.timeline_delete(env.initial_tenant, parent_timeline_id),
)