Пример #1
0
        public override void TestFixtureSetUp()
        {
            base.TestFixtureSetUp();

            WriterChecksum = new InMemoryCheckpoint(0);
            ChaserChecksum = new InMemoryCheckpoint(0);
            Db             = new TFChunkDb(new TFChunkDbConfig(PathName,
                                                               new VersionedPatternFileNamingStrategy(PathName, "chunk-"),
                                                               10000,
                                                               0,
                                                               WriterChecksum,
                                                               ChaserChecksum,
                                                               new[] { WriterChecksum, ChaserChecksum }));

            Db.OpenVerifyAndClean();
            // create db
            Writer = new TFChunkWriter(Db);
            Writer.Open();
            WriteTestScenario();
            Writer.Close();
            Writer = null;

            WriterChecksum.Flush();
            ChaserChecksum.Write(WriterChecksum.Read());
            ChaserChecksum.Flush();

            TableIndex = new TableIndex(Path.Combine(PathName, "index"),
                                        () => new HashListMemTable(MaxEntriesInMemTable * 2),
                                        MaxEntriesInMemTable);

            var reader = new TFChunkReader(Db, Db.Config.WriterCheckpoint);

            ReadIndex = new ReadIndex(new NoopPublisher(),
                                      2,
                                      () => new TFChunkSequentialReader(Db, Db.Config.WriterCheckpoint, 0),
                                      () => reader,
                                      TableIndex,
                                      new ByLengthHasher(),
                                      new NoLRUCache <string, StreamCacheInfo>());

            ReadIndex.Build();

            // scavenge must run after readIndex is built
            if (_scavenge)
            {
                _scavenger = new TFChunkScavenger(Db, ReadIndex);
                _scavenger.Scavenge(alwaysKeepScavenged: true);
            }
        }
Пример #2
0
        public override void TestFixtureSetUp()
        {
            base.TestFixtureSetUp();

            WriterChecksum = new InMemoryCheckpoint(0);
            ChaserChecksum = new InMemoryCheckpoint(0);
            Db = new TFChunkDb(new TFChunkDbConfig(PathName,
                                                   new VersionedPatternFileNamingStrategy(PathName, "chunk-"),
                                                   10000,
                                                   0,
                                                   WriterChecksum,
                                                   ChaserChecksum,
                                                   new[] { WriterChecksum, ChaserChecksum }));

            Db.OpenVerifyAndClean();
            // create db
            Writer = new TFChunkWriter(Db);
            Writer.Open();
            WriteTestScenario();
            Writer.Close();
            Writer = null;

            WriterChecksum.Flush();
            ChaserChecksum.Write(WriterChecksum.Read());
            ChaserChecksum.Flush();

            TableIndex = new TableIndex(Path.Combine(PathName, "index"),
                                        () => new HashListMemTable(MaxEntriesInMemTable * 2),
                                        MaxEntriesInMemTable);

            var reader = new TFChunkReader(Db, Db.Config.WriterCheckpoint);
            ReadIndex = new ReadIndex(new NoopPublisher(),
                                      2,
                                      () => new TFChunkSequentialReader(Db, Db.Config.WriterCheckpoint, 0),
                                      () => reader,
                                      TableIndex,
                                      new ByLengthHasher(),
                                      new NoLRUCache<string, StreamCacheInfo>());

            ReadIndex.Build();

            // scavenge must run after readIndex is built
            if (_scavenge)
            {
                _scavenger = new TFChunkScavenger(Db, ReadIndex);
                _scavenger.Scavenge(alwaysKeepScavenged: true);
            }
        }