Java Code Examples for org.rocksdb.BlockBasedTableConfig#setPinL0FilterAndIndexBlocksInCache()

The following examples show how to use org.rocksdb.BlockBasedTableConfig#setPinL0FilterAndIndexBlocksInCache() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: RocksDBWrapper.java    From aion with MIT License 5 votes vote down vote up 
private BlockBasedTableConfig setupBlockBasedTableConfig() {
    BlockBasedTableConfig bbtc = new BlockBasedTableConfig();
    bbtc.setBlockSize(BLOCK_SIZE);
    bbtc.setCacheIndexAndFilterBlocks(true);
    bbtc.setPinL0FilterAndIndexBlocksInCache(true);
    bbtc.setFilterPolicy(new BloomFilter(BLOOMFILTER_BITS_PER_KEY, false));
    return bbtc;
}
Example 2
Source File: RocksDbDataSourceImpl.java    From gsc-core with GNU Lesser General Public License v3.0 4 votes vote down vote up 
public void initDB(RocksDbSettings settings) {
    resetDbLock.writeLock().lock();
    try {
        if (isAlive()) {
            return;
        }

        Preconditions.checkNotNull(dataBaseName, "no name set to the dbStore");

        try (Options options = new Options()) {

            // most of these options are suggested by https://github.com/facebook/rocksdb/wiki/Set-Up-Options

            // general options
            if (settings.isEnableStatistics()) {
                options.setStatistics(new Statistics());
                options.setStatsDumpPeriodSec(60);
            }
            options.setCreateIfMissing(true);
            options.setIncreaseParallelism(1);
            options.setLevelCompactionDynamicLevelBytes(true);
            options.setMaxOpenFiles(settings.getMaxOpenFiles());

            // general options supported user config
            options.setNumLevels(settings.getLevelNumber());
            options.setMaxBytesForLevelMultiplier(settings.getMaxBytesForLevelMultiplier());
            options.setMaxBytesForLevelBase(settings.getMaxBytesForLevelBase());
            options.setMaxBackgroundCompactions(settings.getCompactThreads());
            options.setLevel0FileNumCompactionTrigger(settings.getLevel0FileNumCompactionTrigger());
            options.setTargetFileSizeMultiplier(settings.getTargetFileSizeMultiplier());
            options.setTargetFileSizeBase(settings.getTargetFileSizeBase());

            // table options
            final BlockBasedTableConfig tableCfg;
            options.setTableFormatConfig(tableCfg = new BlockBasedTableConfig());
            tableCfg.setBlockSize(settings.getBlockSize());
            tableCfg.setBlockCacheSize(32 * 1024 * 1024);
            tableCfg.setCacheIndexAndFilterBlocks(true);
            tableCfg.setPinL0FilterAndIndexBlocksInCache(true);
            tableCfg.setFilter(new BloomFilter(10, false));

            // read options
            readOpts = new ReadOptions();
            readOpts = readOpts.setPrefixSameAsStart(true)
                    .setVerifyChecksums(false);

            try {
                logger.debug("Opening database");
                final Path dbPath = getDbPath();
                if (!Files.isSymbolicLink(dbPath.getParent())) {
                    Files.createDirectories(dbPath.getParent());
                }

                try {
                    database = RocksDB.open(options, dbPath.toString());
                } catch (RocksDBException e) {
                    logger.error(e.getMessage(), e);
                    throw new RuntimeException("Failed to initialize database", e);
                }

                alive = true;

            } catch (IOException ioe) {
                logger.error(ioe.getMessage(), ioe);
                throw new RuntimeException("Failed to initialize database", ioe);
            }

            logger.debug("<~ RocksDbDataSource.initDB(): " + dataBaseName);
        }
    } finally {
        resetDbLock.writeLock().unlock();
    }
}