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Less flaky test_inconsistent_parts_if_drop_while_replica_not_active

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This commit is contained in:
Raúl Marín 2022-01-27 12:47:52 +01:00
parent 44cdb9f37e
commit cb1524d4d9
1 changed files with 13 additions and 10 deletions
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23
tests/integration/test_consistent_parts_after_clone_replica/test.py
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@ -3,8 +3,6 @@ import pytest
from helpers.cluster import ClickHouseCluster
from helpers.network import PartitionManager
from helpers.test_tools import assert_eq_with_retry
import time
def fill_nodes(nodes, shard):
for node in nodes:
@ -59,20 +57,25 @@ def test_inconsistent_parts_if_drop_while_replica_not_active(start_cluster):
# DROP_RANGE will be removed from the replication log and the first replica will be lost
for i in range(20):
node2.query("INSERT INTO test_table VALUES ('2019-08-16', {})".format(20 + i))
assert_eq_with_retry(node2, "SELECT value FROM system.zookeeper WHERE path='/clickhouse/tables/test1/replicated/replicas/node1' AND name='is_lost'", "1")
for i in range(30):
if node2.contains_in_log("Will mark replica node1 as lost"):
break
time.sleep(0.5)
node2.wait_for_log_line("Will mark replica node1 as lost")
# the first replica will be cloned from the second
pm.heal_all()
node2.wait_for_log_line("Sending part")
assert_eq_with_retry(node1, "SELECT count(*) FROM test_table", node2.query("SELECT count(*) FROM test_table"))
# ensure replica was cloned
assert node1.contains_in_log("Will mimic node2")
# queue must be empty (except some merges that are possibly executing right now)
assert node1.query("SELECT count() FROM system.replication_queue WHERE type != 'MERGE_PARTS'") == "0\n"
assert node2.query("SELECT count() FROM system.replication_queue WHERE type != 'MERGE_PARTS'") == "0\n"
# 2 options:
# - There wasn't a merge in node2. Then node1 should have cloned the 2 parts
# - There was a merge in progress. node1 might have cloned the new part but still has the original 2 parts
# in the replication queue until they are finally discarded with a message like:
# `Skipping action for part 201908_40_40_0 because part 201908_21_40_4 already exists.`
#
# In any case after a short while the replication queue should be empty
assert_eq_with_retry(node1, "SELECT count() FROM system.replication_queue WHERE type != 'MERGE_PARTS'", "0")
assert_eq_with_retry(node2, "SELECT count() FROM system.replication_queue WHERE type != 'MERGE_PARTS'", "0")