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Java NoMlockCacheManipulator类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Java中org.apache.hadoop.io.nativeio.NativeIO.POSIX.NoMlockCacheManipulator的典型用法代码示例。如果您正苦于以下问题:Java NoMlockCacheManipulator类的具体用法?Java NoMlockCacheManipulator怎么用?Java NoMlockCacheManipulator使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



NoMlockCacheManipulator类属于org.apache.hadoop.io.nativeio.NativeIO.POSIX包,在下文中一共展示了NoMlockCacheManipulator类的5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,您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: testCacheAndUncacheBlockWithRetries

import org.apache.hadoop.io.nativeio.NativeIO.POSIX.NoMlockCacheManipulator; //导入依赖的package包/类
/**
 * Run testCacheAndUncacheBlock with some failures injected into the mlock
 * call.  This tests the ability of the NameNode to resend commands.
 */
@Test(timeout=600000)
public void testCacheAndUncacheBlockWithRetries() throws Exception {
  // We don't have to save the previous cacheManipulator
  // because it will be reinstalled by the @After function.
  NativeIO.POSIX.setCacheManipulator(new NoMlockCacheManipulator() {
    private final Set<String> seenIdentifiers = new HashSet<String>();
    
    @Override
    public void mlock(String identifier,
        ByteBuffer mmap, long length) throws IOException {
      if (seenIdentifiers.contains(identifier)) {
        // mlock succeeds the second time.
        LOG.info("mlocking " + identifier);
        return;
      }
      seenIdentifiers.add(identifier);
      throw new IOException("injecting IOException during mlock of " +
          identifier);
    }
  });
  testCacheAndUncacheBlock();
}
 
开发者ID:naver,项目名称:hadoop,代码行数:27,代码来源:TestFsDatasetCache.java


示例2: setup

import org.apache.hadoop.io.nativeio.NativeIO.POSIX.NoMlockCacheManipulator; //导入依赖的package包/类
@Before
public void setup() throws Exception {
  conf = createCachingConf();
  cluster =
      new MiniDFSCluster.Builder(conf).numDataNodes(NUM_DATANODES).build();
  cluster.waitActive();
  dfs = cluster.getFileSystem();
  proto = cluster.getNameNodeRpc();
  namenode = cluster.getNameNode();
  prevCacheManipulator = NativeIO.POSIX.getCacheManipulator();
  NativeIO.POSIX.setCacheManipulator(new NoMlockCacheManipulator());
  BlockReaderTestUtil.enableHdfsCachingTracing();
}
 
开发者ID:naver,项目名称:hadoop,代码行数:14,代码来源:TestCacheDirectives.java


示例3: setUp

import org.apache.hadoop.io.nativeio.NativeIO.POSIX.NoMlockCacheManipulator; //导入依赖的package包/类
@Before
public void setUp() throws Exception {
  conf = new HdfsConfiguration();
  conf.setLong(
      DFSConfigKeys.DFS_NAMENODE_PATH_BASED_CACHE_REFRESH_INTERVAL_MS, 100);
  conf.setLong(DFSConfigKeys.DFS_CACHEREPORT_INTERVAL_MSEC_KEY, 500);
  conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, BLOCK_SIZE);
  conf.setLong(DFSConfigKeys.DFS_DATANODE_MAX_LOCKED_MEMORY_KEY,
      CACHE_CAPACITY);
  conf.setLong(DFSConfigKeys.DFS_HEARTBEAT_INTERVAL_KEY, 1);

  prevCacheManipulator = NativeIO.POSIX.getCacheManipulator();
  NativeIO.POSIX.setCacheManipulator(new NoMlockCacheManipulator());

  cluster = new MiniDFSCluster.Builder(conf)
      .numDataNodes(1).build();
  cluster.waitActive();

  fs = cluster.getFileSystem();
  nn = cluster.getNameNode();
  fsImage = nn.getFSImage();
  dn = cluster.getDataNodes().get(0);
  fsd = dn.getFSDataset();

  spyNN = DataNodeTestUtils.spyOnBposToNN(dn, nn);

}
 
开发者ID:naver,项目名称:hadoop,代码行数:28,代码来源:TestFsDatasetCache.java


示例4: setUp

import org.apache.hadoop.io.nativeio.NativeIO.POSIX.NoMlockCacheManipulator; //导入依赖的package包/类
@Before
public void setUp() throws Exception {
  prevCacheManipulator = NativeIO.POSIX.getCacheManipulator();
  NativeIO.POSIX.setCacheManipulator(new NoMlockCacheManipulator());
  DomainSocket.disableBindPathValidation();
  sockDir = new TemporarySocketDirectory();
}
 
开发者ID:naver,项目名称:hadoop,代码行数:8,代码来源:TestFsDatasetCacheRevocation.java


示例5: setUp

import org.apache.hadoop.io.nativeio.NativeIO.POSIX.NoMlockCacheManipulator; //导入依赖的package包/类
@Before
public void setUp() throws Exception {
  assumeTrue(!Path.WINDOWS);
  conf = new HdfsConfiguration();
  conf.setLong(
      DFSConfigKeys.DFS_NAMENODE_PATH_BASED_CACHE_REFRESH_INTERVAL_MS, 100);
  conf.setLong(DFSConfigKeys.DFS_CACHEREPORT_INTERVAL_MSEC_KEY, 500);
  conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, BLOCK_SIZE);
  conf.setLong(DFSConfigKeys.DFS_DATANODE_MAX_LOCKED_MEMORY_KEY,
      CACHE_CAPACITY);
  conf.setLong(DFSConfigKeys.DFS_HEARTBEAT_INTERVAL_KEY, 1);

  prevCacheManipulator = NativeIO.POSIX.getCacheManipulator();
  NativeIO.POSIX.setCacheManipulator(new NoMlockCacheManipulator());

  cluster = new MiniDFSCluster.Builder(conf)
      .numDataNodes(1).build();
  cluster.waitActive();

  fs = cluster.getFileSystem();
  nn = cluster.getNameNode();
  fsImage = nn.getFSImage();
  dn = cluster.getDataNodes().get(0);
  fsd = dn.getFSDataset();

  spyNN = DataNodeTestUtils.spyOnBposToNN(dn, nn);

}
 
开发者ID:Seagate,项目名称:hadoop-on-lustre2,代码行数:29,代码来源:TestFsDatasetCache.java



注:本文中的org.apache.hadoop.io.nativeio.NativeIO.POSIX.NoMlockCacheManipulator类示例整理自Github/MSDocs等源码及文档管理平台,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。


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