public ByteStoreBDB(File dir, String dbname, boolean ro) {
this.dir = Files.initDirectory(dir);
this.readonly = ro;
settings = new SettingsJE();
EnvironmentConfig bdb_eco = new EnvironmentConfig();
bdb_eco.setReadOnly(ro);
bdb_eco.setAllowCreate(!ro);
bdb_eco.setTransactional(false);
// bdb_eco.setDurability(Durability.COMMIT_NO_SYNC);
if (ro) {
bdb_eco.setConfigParam(
EnvironmentConfig.ENV_RUN_CLEANER, "false"); // Disable log cleaner thread
bdb_eco.setCacheMode(CacheMode.EVICT_LN);
}
JEUtil.mergeSystemProperties(bdb_eco);
SettingsJE.updateEnvironmentConfig(settings, bdb_eco);
bdb_env = new Environment(dir, bdb_eco);
bdb_cfg = new DatabaseConfig();
bdb_cfg.setReadOnly(ro);
bdb_cfg.setAllowCreate(true);
bdb_cfg.setDeferredWrite(true);
SettingsJE.updateDatabaseConfig(settings, bdb_cfg);
bdb = bdb_env.openDatabase(null, dbname, bdb_cfg);
if (log.isDebugEnabled()) {
log.debug(SettingsJE.dumpDebug(bdb));
}
}
public BerkeleyStorage(File file, boolean readonly, boolean async) {
if (file == null) {
int pid = 0;
try {
pid = Integer.parseInt((new File("/proc/self")).getCanonicalFile().getName());
} catch (NumberFormatException | IOException e) {
}
String path = "/tmp";
String db_path = System.getenv("DB");
if (db_path != null) {
path = db_path;
}
file = new File(path + "/ringpaxos-db/" + pid);
file.mkdirs();
}
EnvironmentConfig envConfig = new EnvironmentConfig();
DatabaseConfig dbConfig = new DatabaseConfig();
envConfig.setReadOnly(readonly);
dbConfig.setReadOnly(readonly);
envConfig.setAllowCreate(!readonly);
dbConfig.setAllowCreate(!readonly);
// performance settings
envConfig.setTransactional(true);
envConfig.setCacheMode(CacheMode.DEFAULT);
// envConfig.setCacheSize(1000000*800); // 800M
if (async) {
dbConfig.setTransactional(false);
envConfig.setDurability(Durability.COMMIT_NO_SYNC);
dbConfig.setDeferredWrite(true);
} else {
dbConfig.setTransactional(true);
envConfig.setDurability(Durability.COMMIT_SYNC);
dbConfig.setDeferredWrite(false);
}
env = new Environment(file, envConfig);
db = env.openDatabase(null, "paxosDB", dbConfig);
classCatalogDb = env.openDatabase(null, "ClassCatalogDB", dbConfig);
classCatalog = new StoredClassCatalog(classCatalogDb);
keyBinding = TupleBinding.getPrimitiveBinding(Long.class);
dataBinding = new SerialBinding<Decision>(classCatalog, Decision.class);
ballotBinding = TupleBinding.getPrimitiveBinding(Integer.class);
logger.info("BerkeleyStorage cache size: " + env.getMutableConfig().getCacheSize());
logger.info(
"BerkeleyStorage durability: " + env.getMutableConfig().getDurability().getLocalSync());
logger.info("BerkeleyStorage deferred write: " + db.getConfig().getDeferredWrite());
}