Java GenericKeyedObjectPoolConfig.setNumTestsPerEvictionRun方法代码示例

import org.apache.commons.pool2.impl.GenericKeyedObjectPoolConfig; //导入方法依赖的package包/类
private void registerPool(final String username, final String password)
        throws NamingException, SQLException {

    final ConnectionPoolDataSource cpds = testCPDS(username, password);

    // Create an object pool to contain our PooledConnections
    factory = new KeyedCPDSConnectionFactory(cpds, getValidationQuery(),
            getValidationQueryTimeout(), isRollbackAfterValidation());
    factory.setMaxConnLifetimeMillis(getMaxConnLifetimeMillis());

    final GenericKeyedObjectPoolConfig config =
            new GenericKeyedObjectPoolConfig();
    config.setBlockWhenExhausted(getDefaultBlockWhenExhausted());
    config.setEvictionPolicyClassName(getDefaultEvictionPolicyClassName());
    config.setLifo(getDefaultLifo());
    config.setMaxIdlePerKey(getDefaultMaxIdle());
    config.setMaxTotal(getMaxTotal());
    config.setMaxTotalPerKey(getDefaultMaxTotal());
    config.setMaxWaitMillis(getDefaultMaxWaitMillis());
    config.setMinEvictableIdleTimeMillis(
            getDefaultMinEvictableIdleTimeMillis());
    config.setMinIdlePerKey(getDefaultMinIdle());
    config.setNumTestsPerEvictionRun(getDefaultNumTestsPerEvictionRun());
    config.setSoftMinEvictableIdleTimeMillis(
            getDefaultSoftMinEvictableIdleTimeMillis());
    config.setTestOnCreate(getDefaultTestOnCreate());
    config.setTestOnBorrow(getDefaultTestOnBorrow());
    config.setTestOnReturn(getDefaultTestOnReturn());
    config.setTestWhileIdle(getDefaultTestWhileIdle());
    config.setTimeBetweenEvictionRunsMillis(
            getDefaultTimeBetweenEvictionRunsMillis());

    final KeyedObjectPool<UserPassKey,PooledConnectionAndInfo> tmpPool =
            new GenericKeyedObjectPool<>(factory, config);
    factory.setPool(tmpPool);
    pool = tmpPool;
}
 

import org.apache.commons.pool2.impl.GenericKeyedObjectPoolConfig; //导入方法依赖的package包/类
private GenericKeyedObjectPoolConfig getConfig(PoolConfig poolConfig) {
	GenericKeyedObjectPoolConfig objectPoolConfig = new GenericKeyedObjectPoolConfig();

	objectPoolConfig.setMaxTotalPerKey(poolConfig.getMaxTotalPerKey());
	objectPoolConfig.setMaxTotal(poolConfig.getMaxTotal());

	objectPoolConfig.setMaxIdlePerKey(poolConfig.getMaxIdlePerKey());
	objectPoolConfig.setMinIdlePerKey(poolConfig.getMinIdlePerKey());

	objectPoolConfig.setTestWhileIdle(poolConfig.isTestWhileIdle());
	objectPoolConfig.setTestOnReturn(poolConfig.isTestOnReturn());
	objectPoolConfig.setTestOnCreate(poolConfig.isTestOnCreate());
	objectPoolConfig.setTestOnBorrow(poolConfig.isTestOnBorrow());

	objectPoolConfig.setTimeBetweenEvictionRunsMillis(poolConfig.getTimeBetweenEvictionRunsMillis());
	objectPoolConfig.setEvictionPolicyClassName(poolConfig.getEvictionPolicyClassName());
	objectPoolConfig.setMinEvictableIdleTimeMillis(poolConfig.getMinEvictableIdleTimeMillis());
	objectPoolConfig.setNumTestsPerEvictionRun(poolConfig.getNumTestsPerEvictionRun());
	objectPoolConfig.setSoftMinEvictableIdleTimeMillis(poolConfig.getSoftMinEvictableIdleTimeMillis());

	objectPoolConfig.setJmxEnabled(poolConfig.isJmxEnabled());
	objectPoolConfig.setJmxNameBase(poolConfig.getJmxNameBase());
	objectPoolConfig.setJmxNamePrefix(poolConfig.getJmxNamePrefix());

	objectPoolConfig.setMaxWaitMillis(poolConfig.getMaxWaitMillis());

	objectPoolConfig.setFairness(poolConfig.isFairness());
	objectPoolConfig.setBlockWhenExhausted(poolConfig.isBlockWhenExhausted());
	objectPoolConfig.setLifo(poolConfig.isLifo());

	return objectPoolConfig;
}
 

import org.apache.commons.pool2.impl.GenericKeyedObjectPoolConfig; //导入方法依赖的package包/类
public ThriftConnectionPool(Class<T> cls, ThriftPoolConfig cfg,ThriftConnectionFactory connectionFactory) {
    this.clientClass = cls;
    this.cfg = cfg;
    poolConfig = new GenericKeyedObjectPoolConfig();
    poolConfig.setLifo(cfg.getBoolean("thrift.pool.lifo", false));
    poolConfig.setMaxTotal(cfg.getInt("thrift.pool.maxActive", 10));
    poolConfig.setMaxIdlePerKey(cfg.getInt("thrift.pool.maxIdlePerKey", 3));
    poolConfig.setMinIdlePerKey(cfg.getInt("thrift.pool.minIdlePerKey", 0));
    poolConfig.setMaxTotalPerKey(cfg.getInt("thrift.pool.maxTotalPerKey", 10));

    /**
     set the maximum amount of time (in milliseconds) the
     <code>borrowObject()</code> method should block before throwing an
     exception when the pool is exhausted and {@link #getBlockWhenExhausted} is true.
     When less than 0, the <code>borrowObject()</code> method may block indefinitely.
     */
    poolConfig.setMaxWaitMillis(cfg.getInt("thrift.pool.maxWait",20 * 1000));
    /**
     Sets whether to block when the <code>borrowObject()</code> method is
     invoked when the pool is exhausted (the maximum number of "active"
     objects has been reached).
     */
    poolConfig.setBlockWhenExhausted(true);
    /**为了提升性能 关闭testOnBorrow**/
    poolConfig.setTestOnBorrow(false);
    poolConfig.setTestWhileIdle(true);

    this.loop = cfg.getBoolean("thrift.pool.get.loop",false);

    // 开启一个线程执行扫描检测connection
    poolConfig.setTimeBetweenEvictionRunsMillis(cfg.getInt("thrift.pool.timeBetweenEvictionRunsMillis",3*60*1000));
    poolConfig.setMinEvictableIdleTimeMillis(cfg.getInt("thrift.pool.minEvictableIdleTimeMillis",5*60*1000));
    poolConfig.setNumTestsPerEvictionRun(cfg.getInt("thrift.pool.numTestsPerEvictionRun",3));
    this.factory = connectionFactory;
    this.factory.setPool(this);
    mPool = new GenericKeyedObjectPool<>(factory, poolConfig);
}
 

import org.apache.commons.pool2.impl.GenericKeyedObjectPoolConfig; //导入方法依赖的package包/类
@Override
public void initTask() {
  super.initTask();
  stageClassLoaders = runtimeInfo.getStageLibraryClassLoaders();
  if (!stageClassLoaders.isEmpty()) {
    resolveClassLoaderMethods(stageClassLoaders.get(0));
  }

  if(configuration.get(CONFIG_CP_VALIDATION, DEFAULT_CP_VALIDATION)) {
    validateStageClasspaths();
  }

  // Load all stages and other objects from the libraries
  json = ObjectMapperFactory.get();
  stageList = new ArrayList<>();
  stageMap = new HashMap<>();
  lineagePublisherDefinitions = new ArrayList<>();
  lineagePublisherDefinitionMap = new HashMap<>();
  credentialStoreDefinitions = new ArrayList<>();
  serviceList = new ArrayList<>();
  serviceMap = new HashMap<>();
  loadStages();
  stageList = ImmutableList.copyOf(stageList);
  stageMap = ImmutableMap.copyOf(stageMap);
  lineagePublisherDefinitions = ImmutableList.copyOf(lineagePublisherDefinitions);
  lineagePublisherDefinitionMap = ImmutableMap.copyOf(lineagePublisherDefinitionMap);
  credentialStoreDefinitions = ImmutableList.copyOf(credentialStoreDefinitions);
  serviceList = ImmutableList.copyOf(serviceList);
  serviceMap = ImmutableMap.copyOf(serviceMap);

  // Various validations
  validateAllServicesAvailable();

  // localization cache for definitions
  localizedStageList = CacheBuilder.newBuilder().build(new CacheLoader<Locale, List<StageDefinition>>() {
    @Override
    public List<StageDefinition> load(Locale key) throws Exception {
      List<StageDefinition> list = new ArrayList<>();
      for (StageDefinition stage : stageList) {
        list.add(stage.localize());
      }
      return list;
    }
  });
  validateStageVersions(stageList);
  validateServices(stageList, serviceList);

  // initializing the list of targets that can be used for error handling
  ErrorHandlingChooserValues.setErrorHandlingOptions(this);

  // initializing the list of targets that can be used as aggregating sink
  StatsTargetChooserValues.setStatsTargetOptions(this);

  // initializing the list of targets that can be used for pipeline lifecycle events
  PipelineLifecycleStageChooserValues.setHandlingOptions(this);

  // initializing the pool of private stage classloaders
  GenericKeyedObjectPoolConfig poolConfig = new GenericKeyedObjectPoolConfig();
  poolConfig.setJmxEnabled(false);
  poolConfig.setMaxTotal(configuration.get(MAX_PRIVATE_STAGE_CLASS_LOADERS_KEY,
                                           MAX_PRIVATE_STAGE_CLASS_LOADERS_DEFAULT));
  poolConfig.setMinEvictableIdleTimeMillis(-1);
  poolConfig.setNumTestsPerEvictionRun(0);
  poolConfig.setMaxIdlePerKey(-1);
  poolConfig.setMinIdlePerKey(0);
  poolConfig.setMaxTotalPerKey(-1);
  poolConfig.setBlockWhenExhausted(false);
  poolConfig.setMaxWaitMillis(0);
  privateClassLoaderPool = new GenericKeyedObjectPool<>(new ClassLoaderFactory(stageClassLoaders), poolConfig);
}
 

import org.apache.commons.pool2.impl.GenericKeyedObjectPoolConfig; //导入方法依赖的package包/类
/**
 * Attempt to establish a database connection.
 * @param username name to be used for the connection
 * @param pass password to be used fur the connection
 */
@Override
public PooledConnection getPooledConnection(final String username, final String pass)
        throws SQLException {
    getConnectionCalled = true;
    PooledConnectionImpl pci = null;
    // Workaround for buggy WebLogic 5.1 classloader - ignore the
    // exception upon first invocation.
    try {
        if (connectionProperties != null) {
            connectionProperties.put("user", username);
            connectionProperties.put("password", pass);
            pci = new PooledConnectionImpl(DriverManager.getConnection(
                    getUrl(), connectionProperties));
        } else {
            pci = new PooledConnectionImpl(DriverManager.getConnection(
                    getUrl(), username, pass));
        }
        pci.setAccessToUnderlyingConnectionAllowed(isAccessToUnderlyingConnectionAllowed());
    }
    catch (final ClassCircularityError e)
    {
        if (connectionProperties != null) {
            pci = new PooledConnectionImpl(DriverManager.getConnection(
                    getUrl(), connectionProperties));
        } else {
            pci = new PooledConnectionImpl(DriverManager.getConnection(
                    getUrl(), username, pass));
        }
        pci.setAccessToUnderlyingConnectionAllowed(isAccessToUnderlyingConnectionAllowed());
    }
    KeyedObjectPool<PStmtKeyCPDS, PoolablePreparedStatement<PStmtKeyCPDS>> stmtPool = null;
    if (isPoolPreparedStatements()) {
        final GenericKeyedObjectPoolConfig config = new GenericKeyedObjectPoolConfig();
        config.setMaxTotalPerKey(Integer.MAX_VALUE);
        config.setBlockWhenExhausted(false);
        config.setMaxWaitMillis(0);
        config.setMaxIdlePerKey(getMaxIdle());
        if (getMaxPreparedStatements() <= 0)
        {
            // since there is no limit, create a prepared statement pool with an eviction thread
            //  evictor settings are the same as the connection pool settings.
            config.setTimeBetweenEvictionRunsMillis(getTimeBetweenEvictionRunsMillis());
            config.setNumTestsPerEvictionRun(getNumTestsPerEvictionRun());
            config.setMinEvictableIdleTimeMillis(getMinEvictableIdleTimeMillis());
        }
        else
        {
            // since there is limit, create a prepared statement pool without an eviction thread
            //  pool has LRU functionality so when the limit is reached, 15% of the pool is cleared.
            // see org.apache.commons.pool2.impl.GenericKeyedObjectPool.clearOldest method
            config.setMaxTotal(getMaxPreparedStatements());
            config.setTimeBetweenEvictionRunsMillis(-1);
            config.setNumTestsPerEvictionRun(0);
            config.setMinEvictableIdleTimeMillis(0);
        }
        stmtPool = new GenericKeyedObjectPool<>(pci, config);
        pci.setStatementPool(stmtPool);
    }
    return pci;
}