本文整理汇总了Java中org.apache.hadoop.hdfs.server.datanode.DataNodeTestUtils.getLatestScanTime方法的典型用法代码示例。如果您正苦于以下问题：Java DataNodeTestUtils.getLatestScanTime方法的具体用法？Java DataNodeTestUtils.getLatestScanTime怎么用？Java DataNodeTestUtils.getLatestScanTime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.getLatestScanTime方法的1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: testDuplicateScans
import org.apache.hadoop.hdfs.server.datanode.DataNodeTestUtils; //导入方法依赖的package包/类
@Test
public void testDuplicateScans() throws Exception {
long startTime = Time.monotonicNow();
MiniDFSCluster cluster = new MiniDFSCluster.Builder(new Configuration())
.numDataNodes(1).build();
FileSystem fs = null;
try {
fs = cluster.getFileSystem();
DataNode dataNode = cluster.getDataNodes().get(0);
int infoPort = dataNode.getInfoPort();
long scanTimeBefore = 0, scanTimeAfter = 0;
for (int i = 1; i < 10; i++) {
Path fileName = new Path("/test" + i);
DFSTestUtil.createFile(fs, fileName, 1024, (short) 1, 1000L);
waitForVerification(infoPort, fs, fileName, i, startTime, TIMEOUT);
if (i > 1) {
scanTimeAfter = DataNodeTestUtils.getLatestScanTime(dataNode,
DFSTestUtil.getFirstBlock(fs, new Path("/test" + (i - 1))));
assertFalse("scan time shoud not be 0", scanTimeAfter == 0);
assertEquals("There should not be duplicate scan", scanTimeBefore,
scanTimeAfter);
}
scanTimeBefore = DataNodeTestUtils.getLatestScanTime(dataNode,
DFSTestUtil.getFirstBlock(fs, new Path("/test" + i)));
}
cluster.restartDataNode(0);
Thread.sleep(10000);
dataNode = cluster.getDataNodes().get(0);
scanTimeAfter = DataNodeTestUtils.getLatestScanTime(dataNode,
DFSTestUtil.getFirstBlock(fs, new Path("/test" + (9))));
assertEquals("There should not be duplicate scan", scanTimeBefore,
scanTimeAfter);
} finally {
IOUtils.closeStream(fs);
cluster.shutdown();
}
}