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Java FileSystem.deleteSnapshot方法代码示例

本文整理汇总了Java中org.apache.hadoop.fs.FileSystem.deleteSnapshot方法的典型用法代码示例。如果您正苦于以下问题:Java FileSystem.deleteSnapshot方法的具体用法?Java FileSystem.deleteSnapshot怎么用?Java FileSystem.deleteSnapshot使用的例子?那么, 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org.apache.hadoop.fs.FileSystem的用法示例。


在下文中一共展示了FileSystem.deleteSnapshot方法的4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: deleteSnapshot

import org.apache.hadoop.fs.FileSystem; //导入方法依赖的package包/类
/**
 * 此方法用于删除文件快照
 *
 * @param fileSystemInfo
 *            文件系统信息
 * @param path
 *            文件路径
 * @param snapshotName
 *            快照名称
 */
public static void deleteSnapshot(FileSystemInfo fileSystemInfo, String path, String snapshotName) {
	FileSystem fs = getFileSystem(fileSystemInfo);
	Path uri = new Path(path);
	try {
		pathNotExistCheck(path, fs, uri);
		pathNotDirectoryCheck(path, fs, uri);
		fs.deleteSnapshot(uri, snapshotName);
	} catch (IOException e) {
		e.printStackTrace();
	} finally {
		closeFileSystem(fs);
	}
}
 
开发者ID:zhangjunfang,项目名称:alluxio,代码行数:24,代码来源:HdfsAndAlluxioUtils_update.java

示例2: cleanUpLocations

import org.apache.hadoop.fs.FileSystem; //导入方法依赖的package包/类
@Override
public void cleanUpLocations() {
  if (snapshotPath != null) {
    try {
      LOG.debug("Deleting source data snapshot: {}, {}", sourceDataPath, eventId);
      FileSystem sourceFileSystem = fileSystemFactory.get(sourceDataPath, sourceHiveConf);
      sourceFileSystem.deleteSnapshot(sourceDataPath, eventId);
    } catch (IOException e) {
      LOG.error("Unable to delete source data snapshot: {}, {}", sourceDataPath, eventId, e);
    }
  }
}
 
开发者ID:HotelsDotCom,项目名称:circus-train,代码行数:13,代码来源:HdfsSnapshotLocationManager.java

示例3: testWebHdfsDeleteSnapshot

import org.apache.hadoop.fs.FileSystem; //导入方法依赖的package包/类
/**
 * Test snapshot deletion through WebHdfs
 */
@Test
public void testWebHdfsDeleteSnapshot() throws Exception {
  MiniDFSCluster cluster = null;
  final Configuration conf = WebHdfsTestUtil.createConf();
  try {
    cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0).build();
    cluster.waitActive();
    final DistributedFileSystem dfs = cluster.getFileSystem();
    final FileSystem webHdfs = WebHdfsTestUtil.getWebHdfsFileSystem(conf,
        WebHdfsFileSystem.SCHEME);

    final Path foo = new Path("/foo");
    dfs.mkdirs(foo);
    dfs.allowSnapshot(foo);

    webHdfs.createSnapshot(foo, "s1");
    final Path spath = webHdfs.createSnapshot(foo, null);
    Assert.assertTrue(webHdfs.exists(spath));
    final Path s1path = SnapshotTestHelper.getSnapshotRoot(foo, "s1");
    Assert.assertTrue(webHdfs.exists(s1path));

    // delete the two snapshots
    webHdfs.deleteSnapshot(foo, "s1");
    Assert.assertFalse(webHdfs.exists(s1path));
    webHdfs.deleteSnapshot(foo, spath.getName());
    Assert.assertFalse(webHdfs.exists(spath));
  } finally {
    if (cluster != null) {
      cluster.shutdown();
    }
  }
}
 
开发者ID:naver,项目名称:hadoop,代码行数:36,代码来源:TestWebHDFS.java

示例4: testWebHdfsRenameSnapshot

import org.apache.hadoop.fs.FileSystem; //导入方法依赖的package包/类
/**
 * Test snapshot rename through WebHdfs
 */
@Test
public void testWebHdfsRenameSnapshot() throws Exception {
  MiniDFSCluster cluster = null;
  final Configuration conf = WebHdfsTestUtil.createConf();
  try {
    cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0).build();
    cluster.waitActive();
    final DistributedFileSystem dfs = cluster.getFileSystem();
    final FileSystem webHdfs = WebHdfsTestUtil.getWebHdfsFileSystem(conf,
        WebHdfsFileSystem.SCHEME);

    final Path foo = new Path("/foo");
    dfs.mkdirs(foo);
    dfs.allowSnapshot(foo);

    webHdfs.createSnapshot(foo, "s1");
    final Path s1path = SnapshotTestHelper.getSnapshotRoot(foo, "s1");
    Assert.assertTrue(webHdfs.exists(s1path));

    // rename s1 to s2
    webHdfs.renameSnapshot(foo, "s1", "s2");
    Assert.assertFalse(webHdfs.exists(s1path));
    final Path s2path = SnapshotTestHelper.getSnapshotRoot(foo, "s2");
    Assert.assertTrue(webHdfs.exists(s2path));

    webHdfs.deleteSnapshot(foo, "s2");
    Assert.assertFalse(webHdfs.exists(s2path));
  } finally {
    if (cluster != null) {
      cluster.shutdown();
    }
  }
}
 
开发者ID:naver,项目名称:hadoop,代码行数:37,代码来源:TestWebHDFS.java


注:本文中的org.apache.hadoop.fs.FileSystem.deleteSnapshot方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,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。