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Java Options.cacheSize方法代码示例

本文整理汇总了Java中org.iq80.leveldb.Options.cacheSize方法的典型用法代码示例。如果您正苦于以下问题：Java Options.cacheSize方法的具体用法？Java Options.cacheSize怎么用？Java Options.cacheSize使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.iq80.leveldb.Options的用法示例。


在下文中一共展示了Options.cacheSize方法的12个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: createCachePool

import org.iq80.leveldb.Options; //导入方法依赖的package包/类
@Override
public CachePool createCachePool(String poolName, int cacheSize,
		int expireSeconds) {
 	  Options options = new Options();
 	  options.cacheSize(cacheSize * 1048576);//cacheSize M 大小
 	  options.createIfMissing(true);
 	  DB db =null;
 	  try {
 		 db=factory.open(new File("leveldb\\"+poolName), options);
 	    // Use the db in here....
 	  } catch (Exception e) {
 	    // Make sure you close the db to shutdown the 
 	    // database and avoid resource leaks.
 	   // db.close();
 	  }
  return new LevelDBPool(poolName,db,cacheSize);
}
开发者ID:huang-up，项目名称:mycat-src-1.6.1-RELEASE，代码行数:18，代码来源:LevelDBCachePooFactory.java

示例2: createCachePool

import org.iq80.leveldb.Options; //导入方法依赖的package包/类
@Override
public CachePool createCachePool(String poolName, int cacheSize,
                                 int expireSeconds) {
    Options options = new Options();
    options.cacheSize(1048576L * cacheSize); //cacheSize M
    options.createIfMissing(true);
    DB db = null;
    String filePath = "leveldb\\" + poolName;
    try {
        db = factory.open(new File(filePath), options);
        // Use the db in here....
    } catch (IOException e) {
        LOGGER.info("factory try to open file " + filePath + " failed ");
        // Make sure you close the db to shutdown the
        // database and avoid resource leaks.
        // db.close();
    }
    return new LevelDBPool(poolName, db, cacheSize);
}
开发者ID:actiontech，项目名称:dble，代码行数:20，代码来源:LevelDBCachePooFactory.java

示例3: start

import org.iq80.leveldb.Options; //导入方法依赖的package包/类
private void start() throws IOException {
	persister = Executors.newFixedThreadPool(config.getInt("persisterThreads"));
	Options levelDbOptions = new Options();
	levelDbOptions.createIfMissing(true);
	levelDbOptions.cacheSize(config.getInt("levelDbCache"));
	avatarDb = factory.open(new File("./db/chatAvatars"), levelDbOptions);
	chatRoomDb = factory.open(new File("./db/chatRooms"), levelDbOptions);
	if(config.getBoolean("compressMails"))
		levelDbOptions.compressionType(CompressionType.SNAPPY);
	mailDb = factory.open(new File("./db/mails"), levelDbOptions);
	getHighestAvatarIdFromDatabase();
	registrar = new ChatApiTcpListener(config.getInt("registrarPort"));
	gateway = new ChatApiTcpListener(config.getInt("gatewayPort"));
	registrar.start();
	gateway.start();
}
开发者ID:Rabiator1，项目名称:SWG-Station-Chat，代码行数:17，代码来源:ChatApiServer.java

示例4: open

import org.iq80.leveldb.Options; //导入方法依赖的package包/类
@Override
public void open() {
    Options options = new Options();
    options.createIfMissing(true);
    options.cacheSize(cacheSize);
    options.compressionType(CompressionType.SNAPPY);

    try {
        File file = new File(database);
        logger.info("Opening LevelDB: " + file.getAbsolutePath());
        db = JniDBFactory.factory.open(new File(database), options);
        logger.debug(db.getProperty("leveldb.stats"));
    } catch (IOException e) {
        logger.error("Error opening LevelDB ", e);
    }
}
开发者ID:avoloshko，项目名称:WebCrawler，代码行数:17，代码来源:LevelDBStore.java

示例5: DainLevelDBStorageSystem

import org.iq80.leveldb.Options; //导入方法依赖的package包/类
/** Constructor. */
public DainLevelDBStorageSystem(File dir, int cacheSizeMB)
		throws StorageException {
	ensureStorageDirectory(dir);

	Options options = new Options();
	options.createIfMissing(true);

	// we disable compression, as the storage framework has own support for
	// selective compression of sub-stores
	options.compressionType(CompressionType.NONE);
	options.cacheSize(cacheSizeMB * 1024 * 1024);

	try {
		database = Iq80DBFactory.factory.open(dir, options);
	} catch (IOException e) {
		throw new StorageException(e);
	}
}
开发者ID:vimaier，项目名称:conqat，代码行数:20，代码来源:DainLevelDBStorageSystem.java

示例6: LevelDBJNI

import org.iq80.leveldb.Options; //导入方法依赖的package包/类
/**
 * @param config
 * @throws IOException
 */
public LevelDBJNI(Config config) throws IOException {
    super(config);
    this.dbPath = config.getString("leveldb.path");
    this.cacheSize = config.getBytes("leveldb.cache");
    File dbDir = new File(dbPath);
    if (!dbDir.exists()) {
        if (!dbDir.mkdirs()) {
            throw new IOException("Unable to create DB directory");
        }
    }

    Options options = new Options();
    options.createIfMissing(true);
    options.cacheSize(cacheSize);
    options.compressionType(CompressionType.NONE);	// No compression

    db = JniDBFactory.factory.open(dbDir, options);
}
开发者ID:CaracalDB，项目名称:CaracalDB，代码行数:23，代码来源:LevelDBJNI.java

示例7: initRollingLevelDB

import org.iq80.leveldb.Options; //导入方法依赖的package包/类
private void initRollingLevelDB(Long dbStartTime,
    Path rollingInstanceDBPath) {
  if (rollingdbs.containsKey(dbStartTime)) {
    return;
  }
  Options options = new Options();
  options.createIfMissing(true);
  options.cacheSize(conf.getLong(
      YarnConfiguration.TIMELINE_SERVICE_LEVELDB_READ_CACHE_SIZE,
      YarnConfiguration.DEFAULT_TIMELINE_SERVICE_LEVELDB_READ_CACHE_SIZE));
  options.maxOpenFiles(conf.getInt(
      YarnConfiguration.TIMELINE_SERVICE_LEVELDB_MAX_OPEN_FILES,
      YarnConfiguration.DEFAULT_TIMELINE_SERVICE_LEVELDB_MAX_OPEN_FILES));
  options.writeBufferSize(conf.getInt(
      YarnConfiguration.TIMELINE_SERVICE_LEVELDB_WRITE_BUFFER_SIZE,
      YarnConfiguration.DEFAULT_TIMELINE_SERVICE_LEVELDB_WRITE_BUFFER_SIZE));
  LOG.info("Initializing rolling leveldb instance :" + rollingInstanceDBPath
      + " for start time: " + dbStartTime);
  DB db = null;
  try {
    db = factory.open(
        new File(rollingInstanceDBPath.toUri().getPath()), options);
    rollingdbs.put(dbStartTime, db);
    String dbName = fdf.format(dbStartTime);
    LOG.info("Added rolling leveldb instance " + dbName + " to " + getName());
  } catch (IOException ioe) {
    LOG.warn("Failed to open rolling leveldb instance :"
        + new File(rollingInstanceDBPath.toUri().getPath()), ioe);
  }
}
开发者ID:aliyun-beta，项目名称:aliyun-oss-hadoop-fs，代码行数:31，代码来源:RollingLevelDB.java

示例8: serviceInit

import org.iq80.leveldb.Options; //导入方法依赖的package包/类
@Override
protected synchronized void serviceInit(Configuration conf) throws Exception {
  configuration = conf;
  Options options = new Options();
  options.createIfMissing(true);
  options.cacheSize(conf.getLong(
      YarnConfiguration.TIMELINE_SERVICE_LEVELDB_CACHE_READ_CACHE_SIZE,
      YarnConfiguration.
          DEFAULT_TIMELINE_SERVICE_LEVELDB_CACHE_READ_CACHE_SIZE));
  JniDBFactory factory = new JniDBFactory();
  Path dbPath = new Path(
      conf.get(YarnConfiguration.TIMELINE_SERVICE_LEVELDB_PATH),
      dbId + CACHED_LDB_FILE_PREFIX);
  FileSystem localFS = null;

  try {
    localFS = FileSystem.getLocal(conf);
    if (!localFS.exists(dbPath)) {
      if (!localFS.mkdirs(dbPath)) {
        throw new IOException("Couldn't create directory for leveldb " +
            "timeline store " + dbPath);
      }
      localFS.setPermission(dbPath, LeveldbUtils.LEVELDB_DIR_UMASK);
    }
  } finally {
    IOUtils.cleanup(LOG, localFS);
  }
  LOG.info("Using leveldb path " + dbPath);
  entityDb = factory.open(new File(dbPath.toString()), options);
  entities = new LevelDBMapAdapter<>(entityDb);

  super.serviceInit(conf);
}
开发者ID:hopshadoop，项目名称:hops，代码行数:34，代码来源:LevelDBCacheTimelineStore.java

示例9: serviceInit

import org.iq80.leveldb.Options; //导入方法依赖的package包/类
@Override
@SuppressWarnings("unchecked")
protected void serviceInit(Configuration conf) throws Exception {
  Options options = new Options();
  options.createIfMissing(true);
  options.cacheSize(conf.getLong(
      YarnConfiguration.TIMELINE_SERVICE_LEVELDB_READ_CACHE_SIZE,
      YarnConfiguration.DEFAULT_TIMELINE_SERVICE_LEVELDB_READ_CACHE_SIZE));
  JniDBFactory factory = new JniDBFactory();
  String path = conf.get(YarnConfiguration.TIMELINE_SERVICE_LEVELDB_PATH);
  File p = new File(path);
  if (!p.exists()) {
    if (!p.mkdirs()) {
      throw new IOException("Couldn't create directory for leveldb " +
          "timeline store " + path);
    }
  }
  LOG.info("Using leveldb path " + path);
  db = factory.open(new File(path, FILENAME), options);
  startTimeWriteCache =
      Collections.synchronizedMap(new LRUMap(getStartTimeWriteCacheSize(
          conf)));
  startTimeReadCache =
      Collections.synchronizedMap(new LRUMap(getStartTimeReadCacheSize(
          conf)));

  if (conf.getBoolean(YarnConfiguration.TIMELINE_SERVICE_TTL_ENABLE, true)) {
    deletionThread = new EntityDeletionThread(conf);
    deletionThread.start();
  }

  super.serviceInit(conf);
}
开发者ID:Seagate，项目名称:hadoop-on-lustre2，代码行数:34，代码来源:LeveldbTimelineStore.java

示例10: dataDbOptions

import org.iq80.leveldb.Options; //导入方法依赖的package包/类
private Options dataDbOptions() {
   Options options = new Options().createIfMissing(true);

   options.compressionType(CompressionType.valueOf(configuration.compressionType().name()));

   if (configuration.blockSize() != null) {
      options.blockSize(configuration.blockSize());
   }

   if (configuration.cacheSize() != null) {
      options.cacheSize(configuration.cacheSize());
   }

   return options;
}
开发者ID:danberindei，项目名称:infinispan-cachestore-leveldb，代码行数:16，代码来源:LevelDBStore.java

示例11: serviceInit

import org.iq80.leveldb.Options; //导入方法依赖的package包/类
@Override
@SuppressWarnings("unchecked")
protected void serviceInit(Configuration conf) throws Exception {
  Options options = new Options();
  options.createIfMissing(true);
  options.cacheSize(conf.getLong(
      YarnConfiguration.TIMELINE_SERVICE_LEVELDB_READ_CACHE_SIZE,
      YarnConfiguration.DEFAULT_TIMELINE_SERVICE_LEVELDB_READ_CACHE_SIZE));
  JniDBFactory factory = new JniDBFactory();
  Path dbPath = new Path(
      conf.get(YarnConfiguration.TIMELINE_SERVICE_LEVELDB_PATH), FILENAME);
  FileSystem localFS = null;
  try {
    localFS = FileSystem.getLocal(conf);
    if (!localFS.exists(dbPath)) {
      if (!localFS.mkdirs(dbPath)) {
        throw new IOException("Couldn't create directory for leveldb " +
            "timeline store " + dbPath);
      }
      localFS.setPermission(dbPath, LEVELDB_DIR_UMASK);
    }
  } finally {
    IOUtils.cleanup(LOG, localFS);
  }
  LOG.info("Using leveldb path " + dbPath);
  db = factory.open(new File(dbPath.toString()), options);
  checkVersion();
  startTimeWriteCache =
      Collections.synchronizedMap(new LRUMap(getStartTimeWriteCacheSize(
          conf)));
  startTimeReadCache =
      Collections.synchronizedMap(new LRUMap(getStartTimeReadCacheSize(
          conf)));

  if (conf.getBoolean(YarnConfiguration.TIMELINE_SERVICE_TTL_ENABLE, true)) {
    deletionThread = new EntityDeletionThread(conf);
    deletionThread.start();
  }

  super.serviceInit(conf);
}
开发者ID:Nextzero，项目名称:hadoop-2.6.0-cdh5.4.3，代码行数:42，代码来源:LeveldbTimelineStore.java

示例12: activateService

import org.iq80.leveldb.Options; //导入方法依赖的package包/类
@Override
public void activateService()
    throws Exception
{
    charset = Charset.forName( "UTF-8" );
    configuration.refresh();
    LevelDBEntityStoreConfiguration config = configuration.get();

    // Choose flavour
    String flavour = config.flavour().get();
    DBFactory factory;
    if( "jni".equalsIgnoreCase( flavour ) )
    {
        factory = newJniDBFactory();
    }
    else if( "java".equalsIgnoreCase( flavour ) )
    {
        factory = newJavaDBFactory();
    }
    else
    {
        factory = newDBFactory();
    }

    // Apply configuration
    Options options = new Options();
    options.createIfMissing( true );
    if( config.blockRestartInterval().get() != null )
    {
        options.blockRestartInterval( config.blockRestartInterval().get() );
    }
    if( config.blockSize().get() != null )
    {
        options.blockSize( config.blockSize().get() );
    }
    if( config.cacheSize().get() != null )
    {
        options.cacheSize( config.cacheSize().get() );
    }
    if( config.compression().get() != null )
    {
        options.compressionType( config.compression().get()
                                 ? CompressionType.SNAPPY
                                 : CompressionType.NONE );
    }
    if( config.maxOpenFiles().get() != null )
    {
        options.maxOpenFiles( config.maxOpenFiles().get() );
    }
    if( config.paranoidChecks().get() != null )
    {
        options.paranoidChecks( config.paranoidChecks().get() );
    }
    if( config.verifyChecksums().get() != null )
    {
        options.verifyChecksums( config.verifyChecksums().get() );
    }
    if( config.writeBufferSize().get() != null )
    {
        options.writeBufferSize( config.writeBufferSize().get() );
    }
    if( config.errorIfExists().get() != null )
    {
        options.errorIfExists( config.errorIfExists().get() );
    }

    // Open/Create the database
    File dbFile = new File( fileConfig.dataDirectory(), descriptor.identity().toString() );
    db = factory.open( dbFile, options );
}
开发者ID:apache，项目名称:polygene-java，代码行数:71，代码来源:LevelDBEntityStoreMixin.java


注：本文中的org.iq80.leveldb.Options.cacheSize方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。