public BdbStorageConfiguration(VoldemortConfig config) {
this.voldemortConfig = config;
environmentConfig = new EnvironmentConfig();
environmentConfig.setTransactional(true);
environmentConfig.setCacheSize(config.getBdbCacheSize());
if (config.isBdbWriteTransactionsEnabled() && config.isBdbFlushTransactionsEnabled()) {
environmentConfig.setTxnNoSync(false);
environmentConfig.setTxnWriteNoSync(false);
} else if (config.isBdbWriteTransactionsEnabled() && !config.isBdbFlushTransactionsEnabled()) {
environmentConfig.setTxnNoSync(false);
environmentConfig.setTxnWriteNoSync(true);
} else {
environmentConfig.setTxnNoSync(true);
}
environmentConfig.setAllowCreate(true);
environmentConfig.setConfigParam(
EnvironmentConfig.LOG_FILE_MAX, Long.toString(config.getBdbMaxLogFileSize()));
environmentConfig.setConfigParam(
EnvironmentConfig.CHECKPOINTER_BYTES_INTERVAL,
Long.toString(config.getBdbCheckpointBytes()));
environmentConfig.setConfigParam(
EnvironmentConfig.CHECKPOINTER_WAKEUP_INTERVAL,
Long.toString(config.getBdbCheckpointMs() * Time.US_PER_MS));
environmentConfig.setConfigParam(
EnvironmentConfig.CLEANER_MIN_FILE_UTILIZATION,
Integer.toString(config.getBdbCleanerMinFileUtilization()));
environmentConfig.setConfigParam(
EnvironmentConfig.CLEANER_MIN_UTILIZATION,
Integer.toString(config.getBdbCleanerMinUtilization()));
environmentConfig.setConfigParam(
EnvironmentConfig.CLEANER_THREADS, Integer.toString(config.getBdbCleanerThreads()));
environmentConfig.setConfigParam(
EnvironmentConfig.CLEANER_LOOK_AHEAD_CACHE_SIZE,
Integer.toString(config.getBdbCleanerLookAheadCacheSize()));
environmentConfig.setConfigParam(
EnvironmentConfig.LOCK_N_LOCK_TABLES, Integer.toString(config.getBdbLockNLockTables()));
environmentConfig.setConfigParam(
EnvironmentConfig.ENV_FAIR_LATCHES, Boolean.toString(config.getBdbFairLatches()));
environmentConfig.setConfigParam(
EnvironmentConfig.CHECKPOINTER_HIGH_PRIORITY,
Boolean.toString(config.getBdbCheckpointerHighPriority()));
environmentConfig.setConfigParam(
EnvironmentConfig.CLEANER_MAX_BATCH_FILES,
Integer.toString(config.getBdbCleanerMaxBatchFiles()));
environmentConfig.setLockTimeout(config.getBdbLockTimeoutMs(), TimeUnit.MILLISECONDS);
databaseConfig = new DatabaseConfig();
databaseConfig.setAllowCreate(true);
databaseConfig.setSortedDuplicates(config.isBdbSortedDuplicatesEnabled());
databaseConfig.setNodeMaxEntries(config.getBdbBtreeFanout());
databaseConfig.setTransactional(true);
bdbMasterDir = config.getBdbDataDirectory();
useOneEnvPerStore = config.isBdbOneEnvPerStore();
if (useOneEnvPerStore) environmentConfig.setSharedCache(true);
}
private Bdb(boolean readOnly, File directory) throws IOException {
try {
directory.mkdirs();
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setSharedCache(true);
envConfig.setReadOnly(readOnly);
envConfig.setAllowCreate(!readOnly);
/*
* int primeForLockTable = SieveForPrimeNumbers.largestPrime(
* Runtime.getRuntime().availableProcessors() - 1);
*
* envConfig.setConfigParam("je.lock.nLockTables", Integer.toString(primeForLockTable));
* envConfig.setConfigParam("je.log.faultReadSize", "4096");
*
*/
bdbEnv = new Environment(directory, envConfig);
} catch (EnvironmentLockedException e) {
throw new IOException(e);
} catch (DatabaseException e) {
throw new IOException(e);
}
}