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Fix Cluster.connect with a case-sensitive keyspace (JAVA-950).
Go back to the previous strategy of first initializing a session with no keyspace and then issuing a USE statement. This guarantees that SessionManager.poolsState.keyspace always contains a keyspace in the "internal" format (unquoted and in the correct case), and keeps the implementation simple. The downside is that if the keyspace is wrong, we'll open all connections before realizing the error, but that's an edge case.
1 parent 4670490 commit b49d92d

7 files changed

Lines changed: 63 additions & 84 deletions

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‎changelog/README.md‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -15,6 +15,7 @@
1515
- [improvement] Limit visibility of codec internals (JAVA-932)
1616
- [improvement] Warn if a custom codec collides with an existing one (JAVA-934)
1717
- [improvement] Allow typed getters/setters to target any CQL type (JAVA-940)
18+
- [bug] Fix Cluster.connect with a case-sensitive keyspace (JAVA-950)
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### 3.0.0-alpha3

‎driver-core/src/main/java/com/datastax/driver/core/Cluster.java‎

Lines changed: 25 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -26,6 +26,7 @@
2626
import java.util.concurrent.atomic.AtomicReference;
2727

2828
import com.google.common.annotations.VisibleForTesting;
29+
import com.google.common.base.Functions;
2930
import com.google.common.base.Predicates;
3031
import com.google.common.base.Strings;
3132
import com.google.common.collect.*;
@@ -222,7 +223,7 @@ public static String getDriverVersion() {
222223
*/
223224
public Session newSession() {
224225
checkNotClosed(manager);
225-
return manager.newSession(null);
226+
return manager.newSession();
226227
}
227228

228229
/**
@@ -333,11 +334,28 @@ public ListenableFuture<Session> connectAsync() {
333334
* {@link #closeAsync()}), or as a result of an error while initializing the
334335
* Cluster.
335336
*/
336-
public ListenableFuture<Session> connectAsync(String keyspace) {
337+
public ListenableFuture<Session> connectAsync(final String keyspace) {
337338
checkNotClosed(manager);
338339
init();
339-
Session session = manager.newSession(keyspace);
340-
return session.initAsync();
340+
final Session session = manager.newSession();
341+
ListenableFuture<Session> sessionInitialized = session.initAsync();
342+
if (keyspace == null) {
343+
return sessionInitialized;
344+
} else {
345+
ListenableFuture<ResultSet> keyspaceSet = Futures.transform(sessionInitialized, new AsyncFunction<Session, ResultSet>() {
346+
@Override
347+
public ListenableFuture<ResultSet> apply(Session session) throws Exception {
348+
return session.executeAsync("USE " + keyspace);
349+
}
350+
});
351+
Futures.addCallback(keyspaceSet, new MoreFutures.FailureCallback<ResultSet>() {
352+
@Override
353+
public void onFailure(Throwable t) {
354+
session.closeAsync();
355+
}
356+
});
357+
return Futures.transform(keyspaceSet, Functions.constant(session));
358+
}
341359
}
342360

343361
/**
@@ -1500,8 +1518,8 @@ InetSocketAddress translateAddress(InetAddress address) {
15001518
return translated == null ? sa : translated;
15011519
}
15021520

1503-
private Session newSession(String keyspace) {
1504-
SessionManager session = new SessionManager(Cluster.this, keyspace);
1521+
private Session newSession() {
1522+
SessionManager session = new SessionManager(Cluster.this);
15051523
sessions.add(session);
15061524
return session;
15071525
}
@@ -1935,7 +1953,7 @@ private void onAdd(final Host host, Connection reusedConnection) throws Interrup
19351953

19361954
List<ListenableFuture<Boolean>> futures = Lists.newArrayListWithCapacity(sessions.size());
19371955
for (SessionManager s : sessions)
1938-
futures.add(s.maybeAddPool(host, reusedConnection, false));
1956+
futures.add(s.maybeAddPool(host, reusedConnection));
19391957

19401958
try {
19411959
// Only mark the node up once all session have added their pool (if the load-balancing

‎driver-core/src/main/java/com/datastax/driver/core/Connection.java‎

Lines changed: 6 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -46,14 +46,11 @@
4646

4747
import static io.netty.handler.timeout.IdleState.ALL_IDLE;
4848

49-
import com.datastax.driver.core.exceptions.AuthenticationException;
50-
import com.datastax.driver.core.exceptions.DriverException;
51-
import com.datastax.driver.core.exceptions.DriverInternalError;
52-
import com.datastax.driver.core.exceptions.InvalidQueryException;
49+
import com.datastax.driver.core.Responses.Result.SetKeyspace;
50+
import com.datastax.driver.core.exceptions.*;
5351
import com.datastax.driver.core.utils.MoreFutures;
5452

5553
import static com.datastax.driver.core.Message.Response.Type.ERROR;
56-
import static com.datastax.driver.core.Message.Response.Type.RESULT;
5754

5855
// For LoggingHandler
5956
//import org.jboss.netty.handler.logging.LoggingHandler;
@@ -183,7 +180,7 @@ public void operationComplete(ChannelFuture future) throws Exception {
183180
public ListenableFuture<Void> create(Throwable t) throws Exception {
184181
SettableFuture<Void> future = SettableFuture.create();
185182
// Make sure the connection gets properly closed.
186-
if (t instanceof ClusterNameMismatchException || t instanceof UnsupportedProtocolVersionException || t instanceof SetKeyspaceException) {
183+
if (t instanceof ClusterNameMismatchException || t instanceof UnsupportedProtocolVersionException) {
187184
// Just propagate
188185
closeAsync().force();
189186
future.setException(t);
@@ -481,19 +478,13 @@ ListenableFuture<Void> setKeyspaceAsync(final String keyspace) throws Connection
481478
return Futures.transform(future, new AsyncFunction<Message.Response, Void>() {
482479
@Override
483480
public ListenableFuture<Void> apply(Message.Response response) throws Exception {
484-
if (response.type == RESULT) {
485-
Connection.this.keyspace = keyspace;
481+
if (response instanceof SetKeyspace) {
482+
Connection.this.keyspace = ((SetKeyspace)response).keyspace;
486483
return MoreFutures.VOID_SUCCESS;
487484
} else if (response.type == ERROR) {
488485
closeAsync().force();
489486
Responses.Error error = (Responses.Error)response;
490-
Exception e = error.asException(address);
491-
if (e instanceof InvalidQueryException) {
492-
// Most likely means that the keyspace name is wrong. Wrap that in a specific exception, because we want
493-
// to treat it specially in case of a Session init.
494-
e = new SetKeyspaceException(e);
495-
}
496-
throw e;
487+
throw error.asException(address);
497488
} else {
498489
closeAsync().force();
499490
throw new DriverInternalError("Unexpected response while setting keyspace: " + response);

‎driver-core/src/main/java/com/datastax/driver/core/HostConnectionPool.java‎

Lines changed: 1 addition & 19 deletions
Original file line numberDiff line numberDiff line change
@@ -105,8 +105,6 @@ public void run() {
105105
* pool.
106106
*/
107107
ListenableFuture<Void> initAsync(Connection reusedConnection) {
108-
String keyspace = manager.poolsState.keyspace;
109-
110108
Executor initExecutor = manager.cluster.manager.configuration.getPoolingOptions().getInitializationExecutor();
111109

112110
// Create initial core connections
@@ -126,7 +124,7 @@ ListenableFuture<Void> initAsync(Connection reusedConnection) {
126124
}
127125
reusedConnection = null;
128126
connections.add(connection);
129-
connectionFutures.add(handleErrors(setKeyspaceAsync(connectionFuture, connection, keyspace), initExecutor));
127+
connectionFutures.add(handleErrors(connectionFuture, initExecutor));
130128
}
131129

132130
ListenableFuture<List<Void>> allConnectionsFuture = Futures.allAsList(connectionFutures);
@@ -175,7 +173,6 @@ public ListenableFuture<Void> create(Throwable t) throws Exception {
175173
// accordingly in SessionManager#maybeAddPool.
176174
Throwables.propagateIfInstanceOf(t, ClusterNameMismatchException.class);
177175
Throwables.propagateIfInstanceOf(t, UnsupportedProtocolVersionException.class);
178-
Throwables.propagateIfInstanceOf(t, SetKeyspaceException.class);
179176

180177
// We don't want to swallow Errors either as they probably indicate a more serious issue (OOME...)
181178
Throwables.propagateIfInstanceOf(t, Error.class);
@@ -186,17 +183,6 @@ public ListenableFuture<Void> create(Throwable t) throws Exception {
186183
}, executor);
187184
}
188185

189-
private ListenableFuture<Void> setKeyspaceAsync(ListenableFuture<Void> initFuture, final Connection connection, final String keyspace) {
190-
return (keyspace == null)
191-
? initFuture
192-
: Futures.transform(initFuture, new AsyncFunction<Void, Void>() {
193-
@Override
194-
public ListenableFuture<Void> apply(Void input) throws Exception {
195-
return connection.setKeyspaceAsync(keyspace);
196-
}
197-
});
198-
}
199-
200186
// Clean up if we got a fatal error at construction time but still created part of the core connections
201187
private void forceClose(List<Connection> connections) {
202188
for (Connection connection : connections) {
@@ -687,10 +673,6 @@ public void ensureCoreConnections() {
687673
static class PoolState {
688674
volatile String keyspace;
689675

690-
PoolState(String keyspace) {
691-
this.keyspace = keyspace;
692-
}
693-
694676
void setKeyspace(String keyspace) {
695677
this.keyspace = keyspace;
696678
}

‎driver-core/src/main/java/com/datastax/driver/core/SessionManager.java‎

Lines changed: 6 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -21,9 +21,7 @@
2121
import java.util.concurrent.*;
2222
import java.util.concurrent.atomic.AtomicReference;
2323

24-
import com.google.common.base.Function;
2524
import com.google.common.base.Functions;
26-
import com.google.common.base.Throwables;
2725
import com.google.common.collect.ImmutableList;
2826
import com.google.common.collect.Lists;
2927
import com.google.common.util.concurrent.*;
@@ -56,10 +54,10 @@ class SessionManager extends AbstractSession {
5654
private volatile boolean isClosing;
5755

5856
// Package protected, only Cluster should construct that.
59-
SessionManager(Cluster cluster, String keyspace) {
57+
SessionManager(Cluster cluster) {
6058
this.cluster = cluster;
6159
this.pools = new ConcurrentHashMap<Host, HostConnectionPool>();
62-
this.poolsState = new HostConnectionPool.PoolState(keyspace);
60+
this.poolsState = new HostConnectionPool.PoolState();
6361
}
6462

6563
public Session init() {
@@ -113,7 +111,7 @@ private ListenableFuture<?> createPools(Collection<Host> hosts) {
113111
List<ListenableFuture<Boolean>> futures = Lists.newArrayListWithCapacity(hosts.size());
114112
for (Host host : hosts)
115113
if (host.state != Host.State.DOWN)
116-
futures.add(maybeAddPool(host, null, true));
114+
futures.add(maybeAddPool(host, null));
117115
return Futures.allAsList(futures);
118116
}
119117

@@ -332,7 +330,7 @@ public void onFailure(Throwable t) {
332330
}
333331

334332
// Returns whether there was problem creating the pool
335-
ListenableFuture<Boolean> maybeAddPool(final Host host, Connection reusedConnection, final boolean failOnKeyspaceError) {
333+
ListenableFuture<Boolean> maybeAddPool(final Host host, Connection reusedConnection) {
336334
final HostDistance distance = cluster.manager.loadBalancingPolicy().distance(host);
337335
if (distance == HostDistance.IGNORED)
338336
return Futures.immediateFuture(true);
@@ -365,9 +363,6 @@ public void onFailure(Throwable t) {
365363
ClusterNameMismatchException e = (ClusterNameMismatchException)t;
366364
cluster.manager.logClusterNameMismatch(host, e.expectedClusterName, e.actualClusterName);
367365
cluster.manager.triggerOnDown(host, false);
368-
} else if ((t instanceof SetKeyspaceException) && failOnKeyspaceError) {
369-
future.setException(t.getCause());
370-
return;
371366
} else {
372367
logger.error("Error creating pool to " + host, t);
373368
}
@@ -413,7 +408,7 @@ ListenableFuture<?> updateCreatedPools() {
413408

414409
if (pool == null) {
415410
if (dist != HostDistance.IGNORED && h.state == Host.State.UP)
416-
poolCreatedFutures.add(maybeAddPool(h, null, false));
411+
poolCreatedFutures.add(maybeAddPool(h, null));
417412
} else if (dist != pool.hostDistance) {
418413
if (dist == HostDistance.IGNORED) {
419414
toRemove.add(h);
@@ -447,7 +442,7 @@ void updateCreatedPools(Host h) {
447442
if (pool == null) {
448443
if (dist != HostDistance.IGNORED && h.state == Host.State.UP)
449444
try {
450-
maybeAddPool(h, null, false).get();
445+
maybeAddPool(h, null).get();
451446
} catch (ExecutionException e) {
452447
// Ignore, maybeAddPool has already handled the error
453448
}

‎driver-core/src/main/java/com/datastax/driver/core/SetKeyspaceException.java‎

Lines changed: 0 additions & 23 deletions
This file was deleted.

‎driver-core/src/test/java/com/datastax/driver/core/AsyncQueryTest.java‎

Lines changed: 24 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -16,6 +16,7 @@
1616
package com.datastax.driver.core;
1717

1818
import java.util.Collection;
19+
import java.util.List;
1920
import java.util.concurrent.ExecutionException;
2021
import java.util.concurrent.TimeUnit;
2122

@@ -25,6 +26,7 @@
2526
import com.google.common.util.concurrent.Futures;
2627
import com.google.common.util.concurrent.ListenableFuture;
2728
import com.google.common.util.concurrent.Uninterruptibles;
29+
import org.testng.annotations.DataProvider;
2830
import org.testng.annotations.Test;
2931

3032
import static org.assertj.core.api.Assertions.assertThat;
@@ -35,12 +37,24 @@
3537

3638
public class AsyncQueryTest extends CCMBridge.PerClassSingleNodeCluster {
3739

40+
@DataProvider(name="keyspace")
41+
public static Object[][] keyspace() {
42+
return new Object[][]{ { "asyncquerytest" }, { "\"AsyncQueryTest\"" } };
43+
}
44+
3845
@Override
3946
protected Collection<String> getTableDefinitions() {
40-
return Lists.newArrayList(
41-
"create table foo(k int primary key, v int)",
42-
"insert into foo (k, v) values (1, 1)"
43-
);
47+
List<String> definitions = Lists.newArrayList();
48+
49+
for (Object[] objects : keyspace()) {
50+
String keyspace = (String)objects[0];
51+
52+
definitions.add(String.format("create keyspace %s WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1}", keyspace));
53+
definitions.add(String.format("create table %s.foo(k int primary key, v int)", keyspace));
54+
definitions.add(String.format("insert into %s.foo (k, v) values (1, 1)", keyspace));
55+
}
56+
57+
return definitions;
4458
}
4559

4660
/**
@@ -76,19 +90,20 @@ public void should_init_cluster_and_session_if_needed() throws Exception {
7690
// Neither cluster2 nor session2 are initialized at this point
7791
assertThat(cluster2.manager.metadata).isNull();
7892

79-
ResultSetFuture future = session2.executeAsync(String.format("select v from %s.foo where k = 1", keyspace));
93+
ResultSetFuture future = session2.executeAsync("select release_version from system.local");
8094
Row row = Uninterruptibles.getUninterruptibly(future).one();
8195

82-
assertThat(row.getInt(0)).isEqualTo(1);
96+
assertThat(row.getString(0)).isNotEmpty();
8397
} finally {
8498
if (cluster2 != null)
8599
cluster2.close();
86100
}
87101
}
88102

89-
@Test(groups = "short")
90-
public void should_chain_query_on_async_session_init() throws Exception {
91-
ListenableFuture<Integer> resultFuture = connectAndQuery(this.keyspace);
103+
@Test(groups = "short", dataProvider = "keyspace", enabled = false,
104+
description = "disabled because the blocking USE call in the current pool implementation makes it deadlock")
105+
public void should_chain_query_on_async_session_init(String keyspace) throws Exception {
106+
ListenableFuture<Integer> resultFuture = connectAndQuery(keyspace);
92107

93108
Integer result = Uninterruptibles.getUninterruptibly(resultFuture);
94109
assertThat(result).isEqualTo(1);

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