| /* |
| * 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; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| 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.security.Authorizations; |
| import org.apache.accumulo.fate.util.UtilWaitThread; |
| import org.apache.accumulo.minicluster.ServerType; |
| import org.apache.accumulo.miniclusterImpl.MiniAccumuloClusterImpl; |
| import org.apache.accumulo.miniclusterImpl.MiniAccumuloConfigImpl; |
| import org.apache.accumulo.test.functional.ConfigurableMacBase; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.LocatedFileStatus; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.RawLocalFileSystem; |
| import org.apache.hadoop.fs.RemoteIterator; |
| import org.junit.Test; |
| |
| import com.google.common.collect.Iterators; |
| |
| public class GarbageCollectWALIT extends ConfigurableMacBase { |
| |
| @Override |
| protected void configure(MiniAccumuloConfigImpl cfg, Configuration hadoopCoreSite) { |
| cfg.setProperty(Property.INSTANCE_ZK_HOST, "5s"); |
| cfg.setProperty(Property.GC_CYCLE_START, "1s"); |
| cfg.setProperty(Property.GC_CYCLE_DELAY, "1s"); |
| cfg.setNumTservers(1); |
| hadoopCoreSite.set("fs.file.impl", RawLocalFileSystem.class.getName()); |
| } |
| |
| @Override |
| protected int defaultTimeoutSeconds() { |
| return 3 * 60; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| // not yet, please |
| String tableName = getUniqueNames(1)[0]; |
| cluster.getClusterControl().stop(ServerType.GARBAGE_COLLECTOR); |
| try (AccumuloClient c = Accumulo.newClient().from(getClientProperties()).build()) { |
| c.tableOperations().create(tableName); |
| // count the number of WALs in the filesystem |
| assertEquals(2, countWALsInFS(cluster)); |
| cluster.getClusterControl().stop(ServerType.TABLET_SERVER); |
| cluster.getClusterControl().start(ServerType.GARBAGE_COLLECTOR); |
| cluster.getClusterControl().start(ServerType.TABLET_SERVER); |
| Iterators.size(c.createScanner(MetadataTable.NAME, Authorizations.EMPTY).iterator()); |
| // let GC run |
| UtilWaitThread.sleep(3 * 5 * 1000); |
| assertEquals(2, countWALsInFS(cluster)); |
| } |
| } |
| |
| private int countWALsInFS(MiniAccumuloClusterImpl cluster) throws Exception { |
| FileSystem fs = cluster.getFileSystem(); |
| RemoteIterator<LocatedFileStatus> iterator = |
| fs.listFiles(new Path(cluster.getConfig().getAccumuloDir() + "/wal"), true); |
| int result = 0; |
| while (iterator.hasNext()) { |
| LocatedFileStatus next = iterator.next(); |
| if (!next.isDirectory()) { |
| result++; |
| } |
| } |
| return result; |
| } |
| } |