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121 lines
2.9 KiB
Python
121 lines
2.9 KiB
Python
import pytest
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from helpers.cluster import ClickHouseCluster
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from time import sleep
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from kazoo.client import KazooClient
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# from kazoo.protocol.serialization import Connect, read_buffer, write_buffer
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance(
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"node1",
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main_configs=["configs/keeper_config1.xml"],
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stay_alive=True,
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with_minio=True,
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)
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node2 = cluster.add_instance(
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"node2",
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main_configs=["configs/keeper_config2.xml"],
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stay_alive=True,
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with_minio=True,
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)
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node3 = cluster.add_instance(
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"node3",
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main_configs=["configs/keeper_config3.xml"],
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stay_alive=True,
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with_minio=True,
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)
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@pytest.fixture(scope="module")
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def started_cluster():
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try:
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cluster.start()
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cluster.minio_client.make_bucket("snapshots")
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yield cluster
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finally:
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cluster.shutdown()
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def get_fake_zk(nodename, timeout=30.0):
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_fake_zk_instance = KazooClient(
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hosts=cluster.get_instance_ip(nodename) + ":9181", timeout=timeout
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)
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_fake_zk_instance.start()
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return _fake_zk_instance
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def destroy_zk_client(zk):
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try:
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if zk:
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zk.stop()
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zk.close()
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except:
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pass
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def wait_node(node):
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for _ in range(100):
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zk = None
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try:
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zk = get_fake_zk(node.name, timeout=30.0)
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zk.sync("/")
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print("node", node.name, "ready")
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break
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except Exception as ex:
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sleep(0.2)
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print("Waiting until", node.name, "will be ready, exception", ex)
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finally:
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destroy_zk_client(zk)
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else:
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raise Exception("Can't wait node", node.name, "to become ready")
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def test_s3_upload(started_cluster):
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node1_zk = get_fake_zk(node1.name)
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# we defined in configs snapshot_distance as 50
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# so after 50 requests we should generate a snapshot
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for _ in range(210):
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node1_zk.create("/test", sequence=True)
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def get_saved_snapshots():
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return [
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obj.object_name
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for obj in list(cluster.minio_client.list_objects("snapshots"))
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]
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saved_snapshots = get_saved_snapshots()
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assert set(saved_snapshots) == set(
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[
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"snapshot_50.bin.zstd",
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"snapshot_100.bin.zstd",
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"snapshot_150.bin.zstd",
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"snapshot_200.bin.zstd",
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]
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)
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destroy_zk_client(node1_zk)
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node1.stop_clickhouse(kill=True)
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# wait for new leader to be picked and that it continues
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# uploading snapshots
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wait_node(node2)
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node2_zk = get_fake_zk(node2.name)
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for _ in range(200):
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node2_zk.create("/test", sequence=True)
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saved_snapshots = get_saved_snapshots()
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assert len(saved_snapshots) > 4
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success_upload_message = "Successfully uploaded"
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assert node2.contains_in_log(success_upload_message) or node3.contains_in_log(
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success_upload_message
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)
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destroy_zk_client(node2_zk)
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