本文整理汇总了Java中org.apache.hadoop.io.nativeio.NativeIO.POSIX.NoMlockCacheManipulator类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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