本文整理汇总了Java中org.apache.hadoop.hdfs.server.datanode.DataNodeTestUtils.fetchReplicaInfo方法的典型用法代码示例。如果您正苦于以下问题：Java DataNodeTestUtils.fetchReplicaInfo方法的具体用法？Java DataNodeTestUtils.fetchReplicaInfo怎么用？Java DataNodeTestUtils.fetchReplicaInfo使用的例子？那么恭喜您, 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.apache.hadoop.hdfs.server.datanode.DataNodeTestUtils的用法示例。
在下文中一共展示了DataNodeTestUtils.fetchReplicaInfo方法的2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: pipeline_01
import org.apache.hadoop.hdfs.server.datanode.DataNodeTestUtils; //导入方法依赖的package包/类
/**
* Creates and closes a file of certain length.
* Calls append to allow next write() operation to add to the end of it
* After write() invocation, calls hflush() to make sure that data sunk through
* the pipeline and check the state of the last block's replica.
* It supposes to be in RBW state
*
* @throws IOException in case of an error
*/
@Test
public void pipeline_01() throws IOException {
final String METHOD_NAME = GenericTestUtils.getMethodName();
if(LOG.isDebugEnabled()) {
LOG.debug("Running " + METHOD_NAME);
}
Path filePath = new Path("/" + METHOD_NAME + ".dat");
DFSTestUtil.createFile(fs, filePath, FILE_SIZE, REPL_FACTOR, rand.nextLong());
if(LOG.isDebugEnabled()) {
LOG.debug("Invoking append but doing nothing otherwise...");
}
FSDataOutputStream ofs = fs.append(filePath);
ofs.writeBytes("Some more stuff to write");
((DFSOutputStream) ofs.getWrappedStream()).hflush();
List<LocatedBlock> lb = cluster.getNameNodeRpc().getBlockLocations(
filePath.toString(), FILE_SIZE - 1, FILE_SIZE).getLocatedBlocks();
String bpid = cluster.getNamesystem().getBlockPoolId();
for (DataNode dn : cluster.getDataNodes()) {
Replica r = DataNodeTestUtils.fetchReplicaInfo(dn, bpid, lb.get(0)
.getBlock().getBlockId());
assertTrue("Replica on DN " + dn + " shouldn't be null", r != null);
assertEquals("Should be RBW replica on " + dn
+ " after sequence of calls append()/write()/hflush()",
HdfsServerConstants.ReplicaState.RBW, r.getState());
}
ofs.close();
}
示例2: pipeline_01
import org.apache.hadoop.hdfs.server.datanode.DataNodeTestUtils; //导入方法依赖的package包/类
/**
* Creates and closes a file of certain length.
* Calls append to allow next write() operation to add to the end of it
* After write() invocation, calls hflush() to make sure that data sunk
* through
* the pipeline and check the state of the last block's replica.
* It supposes to be in RBW state
*
* @throws IOException
* in case of an error
*/
@Test
public void pipeline_01() throws IOException {
final String METHOD_NAME = GenericTestUtils.getMethodName();
if (LOG.isDebugEnabled()) {
LOG.debug("Running " + METHOD_NAME);
}
Path filePath = new Path("/" + METHOD_NAME + ".dat");
DFSTestUtil
.createFile(fs, filePath, FILE_SIZE, REPL_FACTOR, rand.nextLong());
if (LOG.isDebugEnabled()) {
LOG.debug("Invoking append but doing nothing otherwise...");
}
FSDataOutputStream ofs = fs.append(filePath);
ofs.writeBytes("Some more stuff to write");
((DFSOutputStream) ofs.getWrappedStream()).hflush();
List<LocatedBlock> lb = cluster.getNameNodeRpc()
.getBlockLocations(filePath.toString(), FILE_SIZE - 1, FILE_SIZE)
.getLocatedBlocks();
String bpid = cluster.getNamesystem().getBlockPoolId();
for (DataNode dn : cluster.getDataNodes()) {
Replica r = DataNodeTestUtils
.fetchReplicaInfo(dn, bpid, lb.get(0).getBlock().getBlockId());
assertTrue("Replica on DN " + dn + " shouldn't be null", r != null);
assertEquals("Should be RBW replica on " + dn +
" after sequence of calls append()/write()/hflush()",
HdfsServerConstants.ReplicaState.RBW, r.getState());
}
ofs.close();
}