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Deleting a File

Function

Delete a file from the Hadoop distributed file system (HDFS).

Exercise caution when you delete files because the deletion is irreversible.

Example Codes

The following is code snippets. For complete codes, see the HdfsMain class in com.huawei.bigdata.hdfs.examples.

  /**
   * Delete a file.
   *
   * @throws IOException
   */
private void delete() throws IOException {
    Path beDeletedPath = new Path(DEST_PATH + File.separator + FILE_NAME);
    if (fSystem.delete(beDeletedPath, true)) {
        LOG.info("success to delete the file " + DEST_PATH + File.separator + FILE_NAME);
    } else {
        LOG.warn("failed to delete the file " + DEST_PATH + File.separator + FILE_NAME);
    }
}