/**
* Tests that the system.peers table is not updated after a node has been removed. (See
* CASSANDRA-6053)
*/
@Test
public void testStateChangeOnRemovedNode() throws UnknownHostException {
StorageService ss = StorageService.instance;
VersionedValue.VersionedValueFactory valueFactory =
new VersionedValue.VersionedValueFactory(partitioner);
// create a ring of 2 nodes
ArrayList<Token> endpointTokens = new ArrayList<>();
List<InetAddress> hosts = new ArrayList<>();
Util.createInitialRing(
ss, partitioner, endpointTokens, new ArrayList<Token>(), hosts, new ArrayList<UUID>(), 2);
InetAddress toRemove = hosts.get(1);
SystemKeyspace.updatePeerInfo(toRemove, "data_center", "dc42");
SystemKeyspace.updatePeerInfo(toRemove, "rack", "rack42");
assertEquals("rack42", SystemKeyspace.loadDcRackInfo().get(toRemove).get("rack"));
// mark the node as removed
Gossiper.instance.injectApplicationState(
toRemove,
ApplicationState.STATUS,
valueFactory.left(
Collections.singleton(endpointTokens.get(1)), Gossiper.computeExpireTime()));
assertTrue(
Gossiper.instance.isDeadState(Gossiper.instance.getEndpointStateForEndpoint(hosts.get(1))));
// state changes made after the endpoint has left should be ignored
ss.onChange(hosts.get(1), ApplicationState.RACK, valueFactory.rack("rack9999"));
assertEquals("rack42", SystemKeyspace.loadDcRackInfo().get(toRemove).get("rack"));
}
