| /* |
| * 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.cassandra.streaming; |
| |
| import java.io.IOException; |
| import java.nio.file.FileStore; |
| import java.nio.file.attribute.FileAttributeView; |
| import java.nio.file.attribute.FileStoreAttributeView; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.function.Function; |
| import java.util.stream.Collectors; |
| |
| import com.google.common.collect.Lists; |
| import org.apache.cassandra.io.util.File; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import net.bytebuddy.ByteBuddy; |
| import net.bytebuddy.agent.ByteBuddyAgent; |
| import net.bytebuddy.dynamic.loading.ClassReloadingStrategy; |
| import net.bytebuddy.implementation.MethodDelegation; |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| import org.apache.cassandra.cql3.CQLTester; |
| import org.apache.cassandra.db.ColumnFamilyStore; |
| import org.apache.cassandra.db.Directories; |
| import org.apache.cassandra.db.Keyspace; |
| import org.apache.cassandra.db.compaction.CompactionManager; |
| import org.apache.cassandra.schema.TableId; |
| import org.apache.cassandra.Util; |
| |
| import static net.bytebuddy.matcher.ElementMatchers.named; |
| import static net.bytebuddy.matcher.ElementMatchers.takesArguments; |
| import static org.apache.cassandra.utils.TimeUUID.Generator.nextTimeUUID; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| public class StreamSessionTest extends CQLTester |
| { |
| private static Directories dirs; |
| private static Directories dirs2; |
| |
| private static List<File> files; |
| private static List<Directories.DataDirectory> datadirs; |
| |
| private static ColumnFamilyStore cfs; |
| private static ColumnFamilyStore cfs2; |
| private static List<FakeFileStore> filestores = Lists.newArrayList(new FakeFileStore(), new FakeFileStore(), new FakeFileStore()); |
| |
| @BeforeClass |
| public static void before() |
| { |
| DatabaseDescriptor.daemonInitialization(); |
| ByteBuddyAgent.install(); |
| new ByteBuddy().redefine(ColumnFamilyStore.class) |
| .method(named("getIfExists").and(takesArguments(1))) |
| .intercept(MethodDelegation.to(BBKeyspaceHelper.class)) |
| .make() |
| .load(ColumnFamilyStore.class.getClassLoader(), ClassReloadingStrategy.fromInstalledAgent()); |
| files = Lists.newArrayList(new File("/tmp/1"), |
| new File("/tmp/2"), |
| new File("/tmp/3")); |
| datadirs = files.stream().map(Directories.DataDirectory::new).collect(Collectors.toList()); |
| DatabaseDescriptor.setMinFreeSpacePerDriveInMebibytes(0); |
| DatabaseDescriptor.setMaxSpaceForCompactionsPerDrive(1.0); |
| } |
| |
| @Test |
| public void basicDiskSpaceTest() throws InterruptedException |
| { |
| createTable("create table %s (k int primary key, i int)"); |
| dirs = new Directories(getCurrentColumnFamilyStore().metadata(), datadirs); |
| cfs = new MockCFS(getCurrentColumnFamilyStore(), dirs); |
| |
| Map<TableId, Long> perTableIdIncomingBytes = new HashMap<>(); |
| perTableIdIncomingBytes.put(cfs.metadata.id, 999L); |
| |
| filestores.get(0).usableSpace = 334; |
| filestores.get(1).usableSpace = 334; |
| filestores.get(2).usableSpace = 334; |
| |
| Keyspace.all().forEach(ks -> ks.getColumnFamilyStores().forEach(ColumnFamilyStore::disableAutoCompaction)); |
| do |
| { |
| Thread.sleep(100); |
| } while (!CompactionManager.instance.active.getCompactions().isEmpty()); |
| |
| assertTrue(StreamSession.checkDiskSpace(perTableIdIncomingBytes, nextTimeUUID(), filestoreMapper)); |
| |
| filestores.get(0).usableSpace = 332; |
| assertFalse(StreamSession.checkDiskSpace(perTableIdIncomingBytes, nextTimeUUID(), filestoreMapper)); |
| |
| } |
| |
| @Test |
| public void multiTableDiskSpaceTest() throws InterruptedException |
| { |
| createTable("create table %s (k int primary key, i int)"); |
| dirs = new Directories(getCurrentColumnFamilyStore().metadata(), datadirs.subList(0,2)); |
| cfs = new MockCFS(getCurrentColumnFamilyStore(), dirs); |
| createTable("create table %s (k int primary key, i int)"); |
| dirs2 = new Directories(getCurrentColumnFamilyStore().metadata(), datadirs.subList(1,3)); |
| cfs2 = new MockCFS(getCurrentColumnFamilyStore(), dirs2); |
| |
| Map<TableId, Long> perTableIdIncomingBytes = new HashMap<>(); |
| // cfs has datadirs 0, 1 |
| // cfs2 has datadirs 1, 2 |
| // this means that the datadir 1 will get 1000 bytes streamed, and the other ddirs 500bytes: |
| perTableIdIncomingBytes.put(cfs.metadata.id, 1000L); |
| perTableIdIncomingBytes.put(cfs2.metadata.id, 1000L); |
| |
| filestores.get(0).usableSpace = 501; |
| filestores.get(1).usableSpace = 1001; |
| filestores.get(2).usableSpace = 501; |
| |
| Keyspace.all().forEach(ks -> ks.getColumnFamilyStores().forEach(ColumnFamilyStore::disableAutoCompaction)); |
| do |
| { |
| Thread.sleep(100); |
| } while (!CompactionManager.instance.active.getCompactions().isEmpty()); |
| |
| assertTrue(StreamSession.checkDiskSpace(perTableIdIncomingBytes, nextTimeUUID(), filestoreMapper)); |
| |
| filestores.get(1).usableSpace = 999; |
| assertFalse(StreamSession.checkDiskSpace(perTableIdIncomingBytes, nextTimeUUID(), filestoreMapper)); |
| |
| } |
| |
| static Function<File, FileStore> filestoreMapper = (f) -> { |
| for (int i = 0; i < files.size(); i++) |
| { |
| if (f.toPath().startsWith(files.get(i).toPath())) |
| return filestores.get(i); |
| } |
| throw new RuntimeException("Bad file: "+f); |
| }; |
| |
| private static class MockCFS extends ColumnFamilyStore |
| { |
| MockCFS(ColumnFamilyStore cfs, Directories dirs) |
| { |
| super(cfs.keyspace, cfs.getTableName(), Util.newSeqGen(), cfs.metadata, dirs, false, false, true); |
| } |
| } |
| |
| // return our mocked tables: |
| public static class BBKeyspaceHelper |
| { |
| public static ColumnFamilyStore getIfExists(TableId id) |
| { |
| if (id == cfs.metadata.id) |
| return cfs; |
| return cfs2; |
| } |
| } |
| |
| public static class FakeFileStore extends FileStore |
| { |
| public long usableSpace; |
| |
| @Override |
| public long getUsableSpace() |
| { |
| return usableSpace; |
| } |
| |
| @Override |
| public String name() {return null;} |
| @Override |
| public String type() {return null;} |
| @Override |
| public boolean isReadOnly() {return false;} |
| @Override |
| public long getTotalSpace() {return 0;} |
| @Override |
| public long getUnallocatedSpace() {return 0;} |
| @Override |
| public boolean supportsFileAttributeView(Class<? extends FileAttributeView> type) {return false;} |
| @Override |
| public boolean supportsFileAttributeView(String name) {return false;} |
| @Override |
| public <V extends FileStoreAttributeView> V getFileStoreAttributeView(Class<V> type) {return null;} |
| @Override |
| public Object getAttribute(String attribute) throws IOException {return null;} |
| } |
| } |