| /* |
| * 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.io.sstable; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.Future; |
| |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import org.apache.cassandra.SchemaLoader; |
| import org.apache.cassandra.db.ColumnFamilyStore; |
| import org.apache.cassandra.db.Keyspace; |
| import org.apache.cassandra.db.RowUpdateBuilder; |
| import org.apache.cassandra.exceptions.ConfigurationException; |
| import org.apache.cassandra.io.sstable.format.SSTableReader; |
| import org.apache.cassandra.metrics.RestorableMeter; |
| import org.apache.cassandra.metrics.StorageMetrics; |
| import org.apache.cassandra.schema.CachingParams; |
| import org.apache.cassandra.schema.KeyspaceParams; |
| import org.apache.cassandra.schema.MigrationManager; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| public class IndexSummaryRedistributionTest |
| { |
| private static final String KEYSPACE1 = "IndexSummaryRedistributionTest"; |
| private static final String CF_STANDARD = "Standard"; |
| |
| @BeforeClass |
| public static void defineSchema() throws ConfigurationException |
| { |
| SchemaLoader.prepareServer(); |
| SchemaLoader.createKeyspace(KEYSPACE1, |
| KeyspaceParams.simple(1), |
| SchemaLoader.standardCFMD(KEYSPACE1, CF_STANDARD) |
| .minIndexInterval(8) |
| .maxIndexInterval(256) |
| .caching(CachingParams.CACHE_NOTHING)); |
| } |
| |
| @Test |
| public void testMetricsLoadAfterRedistribution() throws IOException |
| { |
| String ksname = KEYSPACE1; |
| String cfname = CF_STANDARD; |
| Keyspace keyspace = Keyspace.open(ksname); |
| ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfname); |
| int numSSTables = 1; |
| int numRows = 1024 * 10; |
| long load = StorageMetrics.load.getCount(); |
| StorageMetrics.load.dec(load); // reset the load metric |
| createSSTables(ksname, cfname, numSSTables, numRows); |
| |
| List<SSTableReader> sstables = new ArrayList<>(cfs.getLiveSSTables()); |
| for (SSTableReader sstable : sstables) |
| sstable.overrideReadMeter(new RestorableMeter(100.0, 100.0)); |
| |
| long oldSize = 0; |
| for (SSTableReader sstable : sstables) |
| { |
| assertEquals(cfs.metadata().params.minIndexInterval, sstable.getEffectiveIndexInterval(), 0.001); |
| oldSize += sstable.bytesOnDisk(); |
| } |
| |
| load = StorageMetrics.load.getCount(); |
| long others = load - oldSize; // Other SSTables size, e.g. schema and other system SSTables |
| |
| int originalMinIndexInterval = cfs.metadata().params.minIndexInterval; |
| // double the min_index_interval |
| MigrationManager.announceTableUpdate(cfs.metadata().unbuild().minIndexInterval(originalMinIndexInterval * 2).build(), true); |
| IndexSummaryManager.instance.redistributeSummaries(); |
| |
| long newSize = 0; |
| for (SSTableReader sstable : cfs.getLiveSSTables()) |
| { |
| assertEquals(cfs.metadata().params.minIndexInterval, sstable.getEffectiveIndexInterval(), 0.001); |
| assertEquals(numRows / cfs.metadata().params.minIndexInterval, sstable.getIndexSummarySize()); |
| newSize += sstable.bytesOnDisk(); |
| } |
| newSize += others; |
| load = StorageMetrics.load.getCount(); |
| |
| // new size we calculate should be almost the same as the load in metrics |
| assertEquals(newSize, load, newSize / 10); |
| } |
| |
| private void createSSTables(String ksname, String cfname, int numSSTables, int numRows) |
| { |
| Keyspace keyspace = Keyspace.open(ksname); |
| ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfname); |
| cfs.truncateBlocking(); |
| cfs.disableAutoCompaction(); |
| |
| ArrayList<Future> futures = new ArrayList<>(numSSTables); |
| ByteBuffer value = ByteBuffer.wrap(new byte[100]); |
| for (int sstable = 0; sstable < numSSTables; sstable++) |
| { |
| for (int row = 0; row < numRows; row++) |
| { |
| String key = String.format("%3d", row); |
| new RowUpdateBuilder(cfs.metadata(), 0, key) |
| .clustering("column") |
| .add("val", value) |
| .build() |
| .applyUnsafe(); |
| } |
| futures.add(cfs.forceFlush()); |
| } |
| for (Future future : futures) |
| { |
| try |
| { |
| future.get(); |
| } |
| catch (InterruptedException | ExecutionException e) |
| { |
| throw new RuntimeException(e); |
| } |
| } |
| assertEquals(numSSTables, cfs.getLiveSSTables().size()); |
| } |
| } |