[GitHub] [hadoop-ozone] xiaoyuyao commented on a change in pull request #518: HDDS-2791. concept/OzoneManager.md translation

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xiaoyuyao commented on a change in pull request #518: HDDS-2791. concept/OzoneManager.md translation
URL: https://github.com/apache/hadoop-ozone/pull/518#discussion_r377384996
 
 

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 File path: hadoop-hdds/docs/content/concept/OzoneManager.zh.md
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+---
+title: "Ozone Manager"
+date: "2017-09-14"
+weight: 2
+summary: Ozone Manager 是 Ozone 主要的命名空间服务，它管理了卷、桶和键的生命周期。
+---
+<!---
+  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.
+-->
+
+Ozone Manager（OM）管理 Ozone 的命名空间。
+
+当向 Ozone 写入数据时，你需要向 OM 请求一个块，OM 会返回一个块并记录下相关信息。当你想要读取那个文件时，你也需要先通过 OM 获取那个块的地址。
+
+OM 允许用户在卷和桶下管理键，卷和桶都是命名空间的一部分，也由 OM 管理。
+
+每个卷都是一个独立的命名空间的根元素，这一点和 HDFS 不同，HDFS 提供的是单个根元素的文件系统。
 
 Review comment:
   单个根元素->单个根目录

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