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https://github.com/neondatabase/neon.git
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47bd307cb8
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.
77 lines
2.6 KiB
Python
77 lines
2.6 KiB
Python
import pytest
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from fixtures.neon_fixtures import NeonEnv, NeonPageserverApiException, wait_until
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from fixtures.types import ZTenantId, ZTimelineId
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def test_timeline_delete(neon_simple_env: NeonEnv):
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env = neon_simple_env
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ps_http = env.pageserver.http_client()
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# first try to delete non existing timeline
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# for existing tenant:
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invalid_timeline_id = ZTimelineId.generate()
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with pytest.raises(NeonPageserverApiException, match="timeline not found"):
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ps_http.timeline_delete(tenant_id=env.initial_tenant, timeline_id=invalid_timeline_id)
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# for non existing tenant:
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invalid_tenant_id = ZTenantId.generate()
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with pytest.raises(
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NeonPageserverApiException,
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match=f"Tenant {invalid_tenant_id} not found in local tenant state",
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):
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ps_http.timeline_delete(tenant_id=invalid_tenant_id, timeline_id=invalid_timeline_id)
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# construct pair of branches to validate that pageserver prohibits
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# deletion of ancestor timelines when they have child branches
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parent_timeline_id = env.neon_cli.create_branch("test_ancestor_branch_delete_parent", "empty")
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leaf_timeline_id = env.neon_cli.create_branch(
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"test_ancestor_branch_delete_branch1", "test_ancestor_branch_delete_parent"
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)
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ps_http = env.pageserver.http_client()
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with pytest.raises(
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NeonPageserverApiException, match="Cannot detach timeline which has child timelines"
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):
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timeline_path = (
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env.repo_dir
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/ "tenants"
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/ str(env.initial_tenant)
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/ "timelines"
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/ str(parent_timeline_id)
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)
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assert timeline_path.exists()
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ps_http.timeline_delete(env.initial_tenant, parent_timeline_id)
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assert not timeline_path.exists()
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timeline_path = (
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env.repo_dir / "tenants" / str(env.initial_tenant) / "timelines" / str(leaf_timeline_id)
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)
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assert timeline_path.exists()
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# retry deletes when compaction or gc is running in pageserver
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wait_until(
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number_of_iterations=3,
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interval=0.2,
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func=lambda: ps_http.timeline_delete(env.initial_tenant, leaf_timeline_id),
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)
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assert not timeline_path.exists()
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# check 404
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with pytest.raises(
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NeonPageserverApiException, match="is not found neither locally nor remotely"
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):
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ps_http.timeline_detail(env.initial_tenant, leaf_timeline_id)
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# FIXME leaves tenant without timelines, should we prevent deletion of root timeline?
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wait_until(
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number_of_iterations=3,
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interval=0.2,
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func=lambda: ps_http.timeline_delete(env.initial_tenant, parent_timeline_id),
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)
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