2e12b83366
When table audit is enabled, Scylla creates the "audit" ks with NetworkTopologyStrategy and RF=3. During node decommission, streaming can fail for the audit ks with "zero replica after the removal" when all nodes from a DC are removed, and so we have to ALTER audit ks to either zero the number of its replicas, to allow for a clear decommission, or have them in the 2nd DC. BTW. https://github.com/scylladb/scylladb/issues/27395 is the same change, but in dtests repository.
45 lines
1.9 KiB
Python
45 lines
1.9 KiB
Python
#
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# Copyright (C) 2023-present ScyllaDB
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#
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# SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
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#
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from test.pylib.manager_client import ManagerClient
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import pytest
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@pytest.mark.asyncio
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async def test_different_group0_ids(manager: ManagerClient):
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"""
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The test starts two single-node clusters (with different group0_ids). Node B (the
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node from the second cluster) is restarted with seeds containing node A (the node
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from the first cluster), and thus it tries to gossip node A. The test checks that
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node A rejects gossip_digest_syn.
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Note: this test relies on the fact that the only node in a single-node cluster
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always gossips with its seeds. This can be considered a bug, although a mild one.
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If we ever fix it, this test can be rewritten by starting a two-node cluster and
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recreating group0 on one of the nodes via the recovery procedure.
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"""
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scylla_a = await manager.server_add()
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scylla_b = await manager.server_add(start=False)
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await manager.server_start(scylla_b.server_id, seeds=[scylla_b.ip_addr])
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id_b = await manager.get_host_id(scylla_b.server_id)
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await manager.server_stop(scylla_b.server_id)
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await manager.server_start(scylla_b.server_id, seeds=[scylla_a.ip_addr])
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# Since scylla_a and scylla_b have different group0 IDs and didn't join each other,
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# they are separate clusters. We need to set audit keyspace RF=0 on scylla_b (the node
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# being decommissioned) to prevent its audit replicas from interfering with the expected
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# "zero replica after the removal" error from the repair service.
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cql_b = await manager.get_cql_exclusive(scylla_b)
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result_b = await cql_b.run_async("SELECT * FROM system_schema.keyspaces WHERE keyspace_name = 'audit'")
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if result_b:
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await cql_b.run_async("DROP KEYSPACE audit")
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log_file_a = await manager.server_open_log(scylla_a.server_id)
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await log_file_a.wait_for(f'Group0Id mismatch from {id_b}', timeout=30)
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