test/src/main/java/org/apache/accumulo/test/functional/MetadataSplitIT.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
 * 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.
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package org.apache.accumulo.test.functional;

import static org.apache.accumulo.fate.util.UtilWaitThread.sleepUninterruptibly;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import java.util.Collections;
import java.util.concurrent.TimeUnit;

import org.apache.accumulo.core.client.Connector;
import org.apache.accumulo.core.conf.Property;
import org.apache.accumulo.core.metadata.MetadataTable;
import org.apache.accumulo.minicluster.impl.MiniAccumuloConfigImpl;
import org.apache.hadoop.conf.Configuration;
import org.junit.Test;

public class MetadataSplitIT extends ConfigurableMacBase {

  @Override
  public void configure(MiniAccumuloConfigImpl cfg, Configuration hadoopCoreSite) {
    cfg.setSiteConfig(Collections.singletonMap(Property.TSERV_MAJC_DELAY.getKey(), "100ms"));
  }

  @Override
  protected int defaultTimeoutSeconds() {
    return 2 * 60;
  }

  @Test
  public void test() throws Exception {
    Connector c = getConnector();
    assertEquals(1, c.tableOperations().listSplits(MetadataTable.NAME).size());
    c.tableOperations().setProperty(MetadataTable.NAME, Property.TABLE_SPLIT_THRESHOLD.getKey(),
        "500");
    for (int i = 0; i < 10; i++) {
      c.tableOperations().create("table" + i);
      c.tableOperations().flush(MetadataTable.NAME, null, null, true);
    }
    sleepUninterruptibly(10, TimeUnit.SECONDS);
    assertTrue(c.tableOperations().listSplits(MetadataTable.NAME).size() > 2);
  }
}