test/src/main/java/org/apache/accumulo/test/functional/BigRootTabletIT.java

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 * distributed with this work for additional information
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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.accumulo.test.functional;

import static org.junit.Assert.assertTrue;

import java.util.Map;

import org.apache.accumulo.core.client.Accumulo;
import org.apache.accumulo.core.client.AccumuloClient;
import org.apache.accumulo.core.conf.Property;
import org.apache.accumulo.core.metadata.MetadataTable;
import org.apache.accumulo.core.metadata.RootTable;
import org.apache.accumulo.core.security.Authorizations;
import org.apache.accumulo.harness.AccumuloClusterHarness;
import org.apache.accumulo.miniclusterImpl.MiniAccumuloConfigImpl;
import org.apache.hadoop.conf.Configuration;
import org.junit.Test;

import com.google.common.collect.Iterators;

public class BigRootTabletIT extends AccumuloClusterHarness {
  // ACCUMULO-542: A large root tablet will fail to load if it does't fit in the tserver scan
  // buffers

  @Override
  public void configureMiniCluster(MiniAccumuloConfigImpl cfg, Configuration hadoopCoreSite) {
    Map<String,String> siteConfig = cfg.getSiteConfig();
    siteConfig.put(Property.TABLE_SCAN_MAXMEM.getKey(), "1024");
    siteConfig.put(Property.TSERV_MAJC_DELAY.getKey(), "60m");
    cfg.setSiteConfig(siteConfig);
  }

  @Override
  protected int defaultTimeoutSeconds() {
    return 4 * 60;
  }

  @Test
  public void test() throws Exception {
    try (AccumuloClient c = Accumulo.newClient().from(getClientProps()).build()) {
      c.tableOperations().addSplits(MetadataTable.NAME,
          FunctionalTestUtils.splits("0 1 2 3 4 5 6 7 8 9 a".split(" ")));
      String[] names = getUniqueNames(10);
      for (String name : names) {
        c.tableOperations().create(name);
        c.tableOperations().flush(MetadataTable.NAME, null, null, true);
        c.tableOperations().flush(RootTable.NAME, null, null, true);
      }
      cluster.stop();
      cluster.start();
      assertTrue(
          Iterators.size(c.createScanner(RootTable.NAME, Authorizations.EMPTY).iterator()) > 0);
    }
  }

}