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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.brooklyn.entity.nosql.cassandra;
import static com.google.common.base.Preconditions.checkNotNull;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
import java.math.BigInteger;
import org.apache.brooklyn.api.entity.EntitySpec;
import org.apache.brooklyn.api.location.Location;
import org.apache.brooklyn.core.entity.Entities;
import org.apache.brooklyn.core.entity.trait.Startable;
import org.apache.brooklyn.core.test.BrooklynAppLiveTestSupport;
import org.apache.brooklyn.entity.nosql.cassandra.TokenGenerators.PosNeg63TokenGenerator;
import org.apache.brooklyn.test.Asserts;
import org.apache.brooklyn.test.EntityTestUtils;
import org.apache.brooklyn.util.collections.MutableMap;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
/**
* An integration test of the {@link CassandraDatacenter} entity.
*
* Tests that a one node cluster can be started on localhost and data can be written/read, using the Astyanax API.
*
* NOTE: If these tests fail with "Timeout waiting for SERVICE_UP" and "java.lang.IllegalStateException: Unable to contact any seeds!"
* or "java.lang.RuntimeException: Unable to gossip with any seeds" appears in the log, it may be that the broadcast_address
* (set to InetAddress.getLocalHost().getHostName()) is not resolving to the value specified in listen_address
* (InetAddress.getLocalHost().getHostAddress()). You can work round this issue by ensuring that you machine has only one
* address, e.g. by disabling wireless if you are also using a wired connection
*/
public class CassandraDatacenterIntegrationTest extends BrooklynAppLiveTestSupport {
@SuppressWarnings("unused")
private static final Logger log = LoggerFactory.getLogger(CassandraDatacenterIntegrationTest.class);
protected Location testLocation;
protected CassandraDatacenter cluster;
@BeforeMethod(alwaysRun = true)
@Override
public void setUp() throws Exception {
CassandraNodeIntegrationTest.assertCassandraPortsAvailableEventually();
super.setUp();
testLocation = app.newLocalhostProvisioningLocation();
}
@AfterMethod(alwaysRun=true)
@Override
public void tearDown() throws Exception {
super.tearDown();
CassandraNodeIntegrationTest.assertCassandraPortsAvailableEventually();
}
@Test(groups = "Integration")
public void testStartAndShutdownClusterSizeOne() throws Exception {
EntitySpec<CassandraDatacenter> spec = EntitySpec.create(CassandraDatacenter.class)
.configure("initialSize", 1)
.configure("tokenShift", 42);
runStartAndShutdownClusterSizeOne(spec, true);
}
/**
* Cassandra v2 needs Java >= 1.7. If you have java 6 as the defult locally, then you can use
* something like {@code .configure("shell.env", MutableMap.of("JAVA_HOME", "/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home"))}
*/
@Test(groups = "Integration")
public void testStartAndShutdownClusterSizeOneCassandraVersion2() throws Exception {
String version = "2.0.9";
EntitySpec<CassandraDatacenter> spec = EntitySpec.create(CassandraDatacenter.class)
.configure(CassandraNode.SUGGESTED_VERSION, version)
.configure("initialSize", 1);
runStartAndShutdownClusterSizeOne(spec, false);
}
/**
* Test that a single node cluster starts up and allows access via the Astyanax API.
* Only one node because Cassandra can only run one node per VM!
*/
protected void runStartAndShutdownClusterSizeOne(EntitySpec<CassandraDatacenter> datacenterSpec, final boolean assertToken) throws Exception {
cluster = app.createAndManageChild(datacenterSpec);
assertEquals(cluster.getCurrentSize().intValue(), 0);
app.start(ImmutableList.of(testLocation));
Entities.dumpInfo(app);
final CassandraNode node = (CassandraNode) Iterables.get(cluster.getMembers(), 0);
String nodeAddr = checkNotNull(node.getAttribute(CassandraNode.HOSTNAME), "hostname") + ":" + checkNotNull(node.getAttribute(CassandraNode.THRIFT_PORT), "thriftPort");
EntityTestUtils.assertAttributeEqualsEventually(cluster, CassandraDatacenter.GROUP_SIZE, 1);
EntityTestUtils.assertAttributeEqualsEventually(cluster, CassandraDatacenter.CASSANDRA_CLUSTER_NODES, ImmutableList.of(nodeAddr));
EntityTestUtils.assertAttributeEqualsEventually(node, Startable.SERVICE_UP, true);
if (assertToken) {
PosNeg63TokenGenerator tg = new PosNeg63TokenGenerator();
tg.growingCluster(1);
EntityTestUtils.assertAttributeEqualsEventually(node, CassandraNode.TOKENS, ImmutableSet.of(tg.newToken().add(BigInteger.valueOf(42))));
}
// may take some time to be consistent (with new thrift_latency checks on the node,
// contactability should not be an issue, but consistency still might be)
Asserts.succeedsEventually(MutableMap.of("timeout", 120*1000), new Runnable() {
public void run() {
boolean open = CassandraDatacenterLiveTest.isSocketOpen(node);
Boolean consistant = open ? CassandraDatacenterLiveTest.areVersionsConsistent(node) : null;
Integer numPeers = node.getAttribute(CassandraNode.PEERS);
Integer liveNodeCount = node.getAttribute(CassandraNode.LIVE_NODE_COUNT);
String msg = "consistency: "
+ (!open ? "unreachable" : consistant==null ? "error" : consistant)+"; "
+ "peer group sizes: "+numPeers + "; live node count: " + liveNodeCount;
assertTrue(open, msg);
assertEquals(consistant, Boolean.TRUE, msg);
if (assertToken) {
assertEquals(numPeers, (Integer)1, msg);
} else {
assertTrue(numPeers != null && numPeers >= 1, msg);
}
assertEquals(liveNodeCount, (Integer)1, msg);
}});
CassandraDatacenterLiveTest.checkConnectionRepeatedly(2, 5, ImmutableList.of(node));
}
}