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From keith-turner <...@git.apache.org>
Subject [GitHub] accumulo pull request #121: ACCUMULO-4353: Stabilize tablet assignment durin...
Date Fri, 01 Jul 2016 01:18:26 GMT
Github user keith-turner commented on a diff in the pull request:

    https://github.com/apache/accumulo/pull/121#discussion_r69235812
  
    --- Diff: test/src/main/java/org/apache/accumulo/test/master/SuspendedTabletsIT.java ---
    @@ -0,0 +1,256 @@
    +/*
    + * 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.accumulo.test.master;
    +
    +import com.google.common.collect.HashMultimap;
    +import com.google.common.collect.ImmutableMap;
    +import com.google.common.collect.SetMultimap;
    +import com.google.common.net.HostAndPort;
    +import java.util.HashMap;
    +import java.util.Iterator;
    +import java.util.Map;
    +import java.util.Objects;
    +import java.util.SortedSet;
    +import java.util.TreeSet;
    +import java.util.concurrent.Callable;
    +import java.util.concurrent.ExecutorService;
    +import java.util.concurrent.Executors;
    +import java.util.concurrent.FutureTask;
    +import java.util.concurrent.ThreadFactory;
    +import static java.util.concurrent.TimeUnit.MILLISECONDS;
    +import static java.util.concurrent.TimeUnit.MINUTES;
    +import static java.util.concurrent.TimeUnit.NANOSECONDS;
    +import static java.util.concurrent.TimeUnit.SECONDS;
    +import java.util.concurrent.TimeoutException;
    +import java.util.concurrent.atomic.AtomicInteger;
    +import org.apache.accumulo.core.client.Connector;
    +import org.apache.accumulo.core.client.Instance;
    +import org.apache.accumulo.core.client.ZooKeeperInstance;
    +import org.apache.accumulo.core.client.impl.ClientContext;
    +import org.apache.accumulo.core.client.impl.Credentials;
    +import org.apache.accumulo.core.client.security.tokens.PasswordToken;
    +import org.apache.accumulo.core.conf.Property;
    +import org.apache.accumulo.core.data.Range;
    +import org.apache.accumulo.core.data.impl.KeyExtent;
    +import org.apache.accumulo.minicluster.ServerType;
    +import org.apache.accumulo.minicluster.impl.MiniAccumuloConfigImpl;
    +import org.apache.accumulo.minicluster.impl.ProcessReference;
    +import org.apache.accumulo.server.master.state.MetaDataTableScanner;
    +import org.apache.accumulo.server.master.state.TabletLocationState;
    +import org.apache.accumulo.test.functional.ConfigurableMacBase;
    +import org.apache.hadoop.conf.Configuration;
    +import org.apache.hadoop.io.Text;
    +import org.junit.AfterClass;
    +import org.junit.Assert;
    +import org.junit.BeforeClass;
    +import org.junit.Test;
    +import org.slf4j.Logger;
    +import org.slf4j.LoggerFactory;
    +
    +public class SuspendedTabletsIT extends ConfigurableMacBase {
    +  private static final Logger log = LoggerFactory.getLogger(SuspendedTabletsIT.class);
    +  private static ExecutorService threadPool;
    +
    +  public static final int TSERVERS = 5;
    +  public static final long SUSPEND_DURATION = MILLISECONDS.convert(2, MINUTES);
    +  public static final int TABLETS = 100;
    +
    +  @Override
    +  public void configure(MiniAccumuloConfigImpl cfg, Configuration fsConf) {
    +    cfg.setProperty(Property.TABLE_SUSPEND_DURATION, SUSPEND_DURATION + "ms");
    +    cfg.setNumTservers(TSERVERS);
    +  }
    +
    +  @Test
    +  public void suspendAndResumeTserver() throws Exception {
    --- End diff --
    
    Very nice test.


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