/**
* The purpose of this test is to make sure that: When a TimedOutException is thrown out from
* invoke method, the CassandraProxyClient will try at least maxAttempts times before throwing the
* exception to the client.
*
* <p>A counter from the ThriftServer in BriskErrorDaemon tracks how many times the method has
* been called.
*
* @throws Exception
*/
@Test
public void testReconnect() throws Exception {
EmbeddedBriskErrorServer.startBrisk();
Brisk.Iface client =
CassandraProxyClient.newProxyConnection(
"localhost", DatabaseDescriptor.getRpcPort(), true, ConnectionStrategy.STICKY);
List<KsDef> ks = client.describe_keyspaces();
assertTrue(ks.size() > 0);
try {
client.get(ByteBufferUtil.EMPTY_BYTE_BUFFER, new ColumnPath("test"), ConsistencyLevel.ALL);
fail("Expect a TimedoutException");
} catch (TimedOutException e) {
// This is expected.
}
assertEquals(
11,
client.get_count(
ByteBufferUtil.EMPTY_BYTE_BUFFER,
new ColumnParent("test"),
new SlicePredicate(),
ConsistencyLevel.ALL));
}
protected Configuration buildConfiguration() {
Configuration conf = new Configuration();
conf.set(CassandraClientHolder.CONF_PARAM_HOST, "localhost");
conf.setInt(CassandraClientHolder.CONF_PARAM_PORT, DatabaseDescriptor.getRpcPort());
conf.setBoolean(CassandraClientHolder.CONF_PARAM_FRAMED, true);
conf.set(CassandraClientHolder.CONF_PARAM_CONNECTION_STRATEGY, "STICKY");
conf.set("hive.metastore.warehouse.dir", "cfs:///user/hive/warehouse");
return conf;
}
/**
* When a cassandra server is not up, we expect that an IOException is thrown out from the method.
*/
@Test
public void testNodeDown() {
Brisk.Iface client = null;
try {
client =
CassandraProxyClient.newProxyConnection(
"localhost", DatabaseDescriptor.getRpcPort(), true, ConnectionStrategy.STICKY);
fail("This should error");
} catch (IOException e) {
}
}
public void init(String keyspace) {
outputHandler.output(
String.format(
"Starting client (and waiting %d seconds for gossip) ...",
StorageService.RING_DELAY / 1000));
try {
// Init gossip
StorageService.instance.initClient();
Set<InetAddress> hosts = Gossiper.instance.getLiveMembers();
hosts.remove(FBUtilities.getLocalAddress());
if (hosts.isEmpty())
throw new IllegalStateException(
"Cannot load any sstable, no live member found in the cluster");
// Query endpoint to ranges map and schemas from thrift
String host = hosts.iterator().next().toString().substring(1);
int port = DatabaseDescriptor.getRpcPort();
Cassandra.Client client = createThriftClient(host, port);
List<TokenRange> tokenRanges = client.describe_ring(keyspace);
List<KsDef> ksDefs = client.describe_keyspaces();
Token.TokenFactory tkFactory = StorageService.getPartitioner().getTokenFactory();
try {
for (TokenRange tr : tokenRanges) {
Range range =
new Range(tkFactory.fromString(tr.start_token), tkFactory.fromString(tr.end_token));
for (String ep : tr.endpoints) {
addRangeForEndpoint(range, InetAddress.getByName(ep));
}
}
} catch (UnknownHostException e) {
throw new RuntimeException("Got an unknow host from describe_ring()", e);
}
for (KsDef ksDef : ksDefs) {
Set<String> cfs = new HashSet<String>();
for (CfDef cfDef : ksDef.cf_defs) cfs.add(cfDef.name);
knownCfs.put(ksDef.name, cfs);
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
