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

import static org.apache.accumulo.fate.util.UtilWaitThread.sleepUninterruptibly;

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

import org.apache.accumulo.core.client.Accumulo;
import org.apache.accumulo.core.client.AccumuloClient;
import org.apache.accumulo.core.client.BatchScanner;
import org.apache.accumulo.core.client.BatchWriter;
import org.apache.accumulo.core.client.IteratorSetting;
import org.apache.accumulo.core.client.Scanner;
import org.apache.accumulo.core.client.admin.TableOperations;
import org.apache.accumulo.core.data.Key;
import org.apache.accumulo.core.data.Mutation;
import org.apache.accumulo.core.data.Range;
import org.apache.accumulo.core.data.Value;
import org.apache.accumulo.core.iterators.Combiner;
import org.apache.accumulo.core.security.Authorizations;
import org.apache.accumulo.harness.AccumuloClusterHarness;
import org.apache.hadoop.io.Text;
import org.junit.Test;

public class ServerSideErrorIT extends AccumuloClusterHarness {

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

  @Test
  public void run() throws Exception {
    try (AccumuloClient c = Accumulo.newClient().from(getClientProps()).build()) {
      String tableName = getUniqueNames(1)[0];
      c.tableOperations().create(tableName);
      IteratorSetting is = new IteratorSetting(5, "Bad Aggregator", BadCombiner.class);
      Combiner.setColumns(is, Collections.singletonList(new IteratorSetting.Column("acf")));
      c.tableOperations().attachIterator(tableName, is);

      try (BatchWriter bw = c.createBatchWriter(tableName)) {
        Mutation m = new Mutation(new Text("r1"));
        m.put("acf", "foo", new Value(new byte[] {'1'}));
        bw.addMutation(m);
      }

      boolean caught = false;
      // try to scan table
      try (Scanner scanner = c.createScanner(tableName, Authorizations.EMPTY)) {

        try {
          for (Entry<Key,Value> entry : scanner) {
            entry.getKey();
          }
        } catch (Exception e) {
          caught = true;
        }

        if (!caught)
          throw new Exception("Scan did not fail");

        // try to batch scan the table
        try (BatchScanner bs = c.createBatchScanner(tableName, Authorizations.EMPTY, 2)) {
          bs.setRanges(Collections.singleton(new Range()));

          caught = false;
          try {
            for (Entry<Key,Value> entry : bs) {
              entry.getKey();
            }
          } catch (Exception e) {
            caught = true;
          }
        }

        if (!caught)
          throw new Exception("batch scan did not fail");

        // remove the bad agg so accumulo can shutdown
        TableOperations to = c.tableOperations();
        for (Entry<String,String> e : to.getProperties(tableName)) {
          to.removeProperty(tableName, e.getKey());
        }

        sleepUninterruptibly(500, TimeUnit.MILLISECONDS);
      }

      // should be able to scan now
      try (Scanner scanner = c.createScanner(tableName, Authorizations.EMPTY)) {
        for (Entry<Key,Value> entry : scanner) {
          entry.getKey();
        }

        // set a nonexistent iterator, should cause scan to fail on server side
        scanner.addScanIterator(new IteratorSetting(100, "bogus", "com.bogus.iterator"));

        caught = false;
        try {
          for (Entry<Key,Value> entry : scanner) {
            // should error
            entry.getKey();
          }
        } catch (Exception e) {
          caught = true;
        }

        if (!caught)
          throw new Exception("Scan did not fail");
      }
    }
  }
}