def test_node_left(self, ignite_version, backups, cache_count, entry_count,
entry_size, preloaders, thread_pool_size, batch_size,
batches_prefetch_count, throttle):
"""
Tests rebalance on node left.
"""
reb_params = RebalanceParams(
trigger_event=TriggerEvent.NODE_LEFT,
backups=backups,
cache_count=cache_count,
entry_count=entry_count,
entry_size=entry_size,
preloaders=preloaders,
thread_pool_size=thread_pool_size,
batch_size=batch_size,
batches_prefetch_count=batches_prefetch_count,
throttle=throttle,
persistent=True)
ignites = start_ignite(self.test_context, ignite_version, reb_params)
control_utility = ControlUtility(ignites)
control_utility.activate()
preload_time = preload_data(
self.test_context,
ignites.config._replace(
client_mode=True, discovery_spi=from_ignite_cluster(ignites)),
rebalance_params=reb_params)
self.logger.debug(
f'DB size before rebalance: {get_database_size_mb(ignites.nodes, ignites.database_dir)}'
)
node = ignites.nodes[-1]
ignites.stop_node(node)
assert ignites.wait_node(node)
control_utility.remove_from_baseline([node])
await_and_check_rebalance(ignites)
result = get_result(ignites.nodes[:-1], preload_time, cache_count,
entry_count, entry_size)
control_utility.deactivate()
self.logger.debug(
f'DB size after rebalance: {get_database_size_mb(ignites.nodes, ignites.database_dir)}'
)
return result
def test_baseline_add_remove(self, ignite_version):
"""
Test add and remove nodes from baseline.
"""
blt_size = self.NUM_NODES - 1
servers = self.__start_ignite_nodes(ignite_version, blt_size)
control_utility = ControlUtility(servers)
control_utility.activate()
# Add node to baseline.
new_node = self.__start_ignite_nodes(ignite_version,
1,
join_cluster=servers)
control_utility.add_to_baseline(new_node.nodes)
blt_size += 1
baseline = control_utility.baseline()
self.__check_baseline_size(baseline, blt_size)
self.__check_nodes_in_baseline(new_node.nodes, baseline)
# Expected failure (remove of online node is not allowed).
try:
control_utility.remove_from_baseline(new_node.nodes)
assert False, "Remove of online node from baseline should fail!"
except ControlUtilityError:
pass
# Remove of offline node from baseline.
new_node.stop()
servers.await_event("Node left topology",
timeout_sec=30,
from_the_beginning=True)
control_utility.remove_from_baseline(new_node.nodes)
blt_size -= 1
baseline = control_utility.baseline()
self.__check_baseline_size(baseline, blt_size)
self.__check_nodes_not_in_baseline(new_node.nodes, baseline)