@Override public DBOptions createDBOptions() { return new DBOptions() .setIncreaseParallelism(4) .setUseFsync(false) .setMaxOpenFiles(-1); }
@Override public DBOptions createDBOptions() { return new DBOptions() .setIncreaseParallelism(4) .setUseFsync(false) .setMaxOpenFiles(-1); }
@Override public DBOptions createDBOptions() { return new DBOptions() .setIncreaseParallelism(4) .setUseFsync(false) .setMaxOpenFiles(-1); }
.setCreateIfMissing(true) .setCreateMissingColumnFamilies(true) .setIncreaseParallelism(rocksThreads) .setMaxBackgroundCompactions(rocksThreads) .setInfoLogLevel(InfoLogLevel.INFO_LEVEL);
@Override public DBOptions setIncreaseParallelism( final int totalThreads) { assert(isOwningHandle()); setIncreaseParallelism(nativeHandle_, totalThreads); return this; }
@Override public DBOptions createDBOptions() { return new DBOptions() .setIncreaseParallelism(4) .setUseFsync(false) .setMaxOpenFiles(-1); }
@Override public DBOptions createDBOptions() { return new DBOptions() .setIncreaseParallelism(4) .setUseFsync(false) .setMaxOpenFiles(-1); }
@Override public DBOptions createDBOptions() { return new DBOptions() .setIncreaseParallelism(4) .setUseFsync(false) .setMaxOpenFiles(-1); }
@Override public DBOptions createDBOptions() { return new DBOptions() .setIncreaseParallelism(4) .setUseFsync(false) .setMaxOpenFiles(-1); }
@Override public DBOptions createDBOptions() { return new DBOptions() .setIncreaseParallelism(4) .setUseFsync(false) .setMaxOpenFiles(-1); }
@Override public DBOptions createDBOptions() { return new DBOptions() .setIncreaseParallelism(4) .setUseFsync(false) .setMaxOpenFiles(-1); }
@Override public DBOptions createDBOptions() { return new DBOptions() .setIncreaseParallelism(4) .setUseFsync(false) .setDisableDataSync(true) .setMaxOpenFiles(-1); }
@Override public DBOptions createDBOptions() { return new DBOptions() .setIncreaseParallelism(4) .setUseFsync(false) .setDisableDataSync(true) .setMaxOpenFiles(-1); }
@Override public DBOptions createDBOptions() { return new DBOptions() .setIncreaseParallelism(4) .setUseFsync(false) .setDisableDataSync(true) .setMaxOpenFiles(-1); }
.setCreateIfMissing(true) .setCreateMissingColumnFamilies(true) .setIncreaseParallelism(parallelism) .setMaxBackgroundCompactions(maxBackgroundCompactions) .setMaxBackgroundFlushes(maxBackgroundFlushes)
dbOpts.setErrorIfExists(false); dbOpts.setInfoLogLevel(DEFAULT_LOG_LEVEL); dbOpts.setIncreaseParallelism(DEFAULT_PARALLELISM); dbOpts.setCreateMissingColumnFamilies(true);
/** * Builds RocksDb {@link DBOptions}. * * @param maxBackgroundFlushes * high priority threads, usually 1 or 2 would be enough * @param maxBackgroundCompactions * low priority threads, between 1 - num_cpu_cores * @param maxBackgroundThreads * {@code >= maxBackgroundFlushes, maxBackgroundCompactions} * @param maxLogFileSize * if equal to {@code 0}, write all logs to one file and roll by time * @return */ public static DBOptions buildDbOptions(int maxBackgroundFlushes, int maxBackgroundCompactions, int maxBackgroundThreads, long maxLogFileSize) { DBOptions dbOptions = new DBOptions(); dbOptions.setCreateIfMissing(true).setCreateMissingColumnFamilies(true) .setErrorIfExists(false); dbOptions.setMaxBackgroundFlushes(maxBackgroundFlushes) .setMaxBackgroundCompactions(maxBackgroundCompactions) .setIncreaseParallelism(maxBackgroundThreads); dbOptions.setAllowMmapReads(true).setAllowMmapWrites(true); dbOptions.setMaxOpenFiles(-1); dbOptions.setKeepLogFileNum(100).setLogFileTimeToRoll(3600) .setMaxLogFileSize(maxLogFileSize); return dbOptions; }