| .. Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| .. http://www.apache.org/licenses/LICENSE-2.0 |
| |
| .. Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| |
| |
| |
| WebHDFS Operators |
| ================= |
| |
| WebHDFS provides web services access to data stored in HDFS. At the same time, |
| it retains the security the native Hadoop protocol offers and uses parallelism, for better throughput. |
| |
| WebHdfsSensor |
| ------------- |
| |
| Waits for a file or folder to land in HDFS |
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| |
| The :class:`~airflow.providers.apache.hdfs.sensors.web_hdfs.WebHdfsSensor`. is used to check for a file or folder |
| to land in HDFS |
| |
| Use the ``filepath`` parameter to poke until the provided file is found. |
| |
| Reference |
| ^^^^^^^^^ |
| |
| For further information, look at `WebHDFS REST API <https://hadoop.apache.org/docs/r1.0.4/webhdfs.html>`_. |
