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

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

import java.util.Map.Entry;
import java.util.SortedSet;
import java.util.TreeSet;
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.admin.NewTableConfiguration;
import org.apache.accumulo.core.clientImpl.ClientContext;
import org.apache.accumulo.core.clientImpl.MasterClient;
import org.apache.accumulo.core.clientImpl.thrift.ThriftNotActiveServiceException;
import org.apache.accumulo.core.conf.Property;
import org.apache.accumulo.core.master.thrift.MasterClientService.Client;
import org.apache.accumulo.core.master.thrift.MasterMonitorInfo;
import org.apache.accumulo.core.master.thrift.TableInfo;
import org.apache.accumulo.core.master.thrift.TabletServerStatus;
import org.apache.accumulo.core.metadata.MetadataTable;
import org.apache.accumulo.core.metadata.RootTable;
import org.apache.accumulo.core.trace.TraceUtil;
import org.apache.accumulo.miniclusterImpl.MiniAccumuloConfigImpl;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.RawLocalFileSystem;
import org.apache.hadoop.io.Text;
import org.junit.Test;

public class MetadataMaxFilesIT extends ConfigurableMacBase {

  @Override
  public void configure(MiniAccumuloConfigImpl cfg, Configuration hadoopCoreSite) {
    cfg.setProperty(Property.TSERV_MAJC_DELAY, "1");
    cfg.setProperty(Property.TSERV_SCAN_MAX_OPENFILES, "10");
    cfg.setProperty(Property.TSERV_ASSIGNMENT_MAXCONCURRENT, "100");
    hadoopCoreSite.set("fs.file.impl", RawLocalFileSystem.class.getName());
  }

  @Override
  protected int defaultTimeoutSeconds() {
    return 5 * 60;
  }

  @Test
  public void test() throws Exception {
    try (AccumuloClient c = Accumulo.newClient().from(getClientProperties()).build()) {
      SortedSet<Text> splits = new TreeSet<>();
      for (int i = 0; i < 1000; i++) {
        splits.add(new Text(String.format("%03d", i)));
      }
      c.tableOperations().setProperty(MetadataTable.NAME, Property.TABLE_SPLIT_THRESHOLD.getKey(),
          "10000");
      // propagation time
      sleepUninterruptibly(5, TimeUnit.SECONDS);
      for (int i = 0; i < 2; i++) {
        String tableName = "table" + i;
        log.info("Creating {} with splits", tableName);
        NewTableConfiguration ntc = new NewTableConfiguration().withSplits(splits);
        c.tableOperations().create(tableName, ntc);
        log.info("flushing");
        c.tableOperations().flush(MetadataTable.NAME, null, null, true);
        c.tableOperations().flush(RootTable.NAME, null, null, true);
      }

      while (true) {
        MasterMonitorInfo stats;
        Client client = null;
        try {
          ClientContext context = (ClientContext) c;
          client = MasterClient.getConnectionWithRetry(context);
          log.info("Fetching stats");
          stats = client.getMasterStats(TraceUtil.traceInfo(), context.rpcCreds());
        } catch (ThriftNotActiveServiceException e) {
          // Let it loop, fetching a new location
          sleepUninterruptibly(100, TimeUnit.MILLISECONDS);
          continue;
        } finally {
          if (client != null)
            MasterClient.close(client);
        }
        int tablets = 0;
        for (TabletServerStatus tserver : stats.tServerInfo) {
          for (Entry<String,TableInfo> entry : tserver.tableMap.entrySet()) {
            if (entry.getKey().startsWith("!") || entry.getKey().startsWith("+"))
              continue;
            tablets += entry.getValue().onlineTablets;
          }
        }
        log.info("Online tablets " + tablets);
        if (tablets == 2002)
          break;
        sleepUninterruptibly(1, TimeUnit.SECONDS);
      }
    }
  }
}