test/distributed/org/apache/cassandra/distributed/test/HintsDisabledTest.java

/*
 * 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
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package org.apache.cassandra.distributed.test;

import java.io.IOException;
import java.util.concurrent.TimeUnit;

import org.awaitility.Awaitility;
import org.junit.Test;

import org.apache.cassandra.concurrent.Stage;
import org.apache.cassandra.distributed.Cluster;
import org.apache.cassandra.distributed.api.ConsistencyLevel;
import org.apache.cassandra.distributed.api.IMessageFilters;
import org.apache.cassandra.metrics.StorageMetrics;
import org.apache.cassandra.utils.concurrent.CountDownLatch;

import static org.apache.cassandra.distributed.api.Feature.GOSSIP;
import static org.apache.cassandra.distributed.api.Feature.NETWORK;
import static org.apache.cassandra.net.Verb.MUTATION_REQ;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.Assert.assertTrue;

public class HintsDisabledTest extends TestBaseImpl
{
    @Test
    public void testHintedHandoffDisabled() throws IOException
    {
        try (Cluster cluster = init(Cluster.build(2)
                                           .withDataDirCount(1)
                                           .withConfig(config -> config.with(NETWORK, GOSSIP)
                                                                       .set("write_request_timeout", "1000ms")
                                                                       .set("hinted_handoff_enabled", false))
                                           .start(), 2))
        {
            String createTableStatement = String.format("CREATE TABLE %s.cf (k text PRIMARY KEY, c1 text) " +
                                                        "WITH compaction = {'class': 'SizeTieredCompactionStrategy', 'enabled': 'false'} ", KEYSPACE);
            cluster.schemaChange(createTableStatement);

            CountDownLatch dropped = CountDownLatch.newCountDownLatch(1);
            // Drop all messages from node1 to node2 so hints should be created
            IMessageFilters.Filter drop1to2 = cluster.filters().verbs(MUTATION_REQ.id).messagesMatching((from, to, m) -> {
                if (from != 1 || to != 2)
                    return false;
                dropped.decrement();
                return true;
            }).drop();

            cluster.coordinator(1).execute(withKeyspace("INSERT INTO %s.cf (k, c1) VALUES (?, ?) USING TIMESTAMP 1;"),
                                           ConsistencyLevel.ONE,
                                           String.valueOf(1),
                                           String.valueOf(1));
            // make sure the write response handler has completed after a chance to hint
            assertTrue(dropped.awaitUninterruptibly(1, TimeUnit.MINUTES));
            cluster.get(1).runOnInstance(() -> {
                Awaitility.waitAtMost(1, TimeUnit.MINUTES).until(() -> Stage.INTERNAL_RESPONSE.executor().getPendingTaskCount() == 0);
            });

            // Check that no hints were created on node1
            assertThat(cluster.get(1).callOnInstance(() -> Long.valueOf(StorageMetrics.totalHints.getCount()))).isEqualTo(0L);
        }
    }
}