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Update CDH-maintainance.md
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asin929 authored Nov 2, 2016
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Expand Up @@ -88,16 +88,22 @@ java.lang.Exception: DB schema exists


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### 10. 应对主机ip变化
### 10. 修改HDFS的容量

**解决办法:**修改HDFS的配置项--`dfs.datanode.du.reserved`,该参数表示磁盘保留的HDFS不能使用的空间大小。


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### 11. 应对主机ip变化

当主机的IP修改后,集群往往不能识别该主机,请参照[修改Cloudera Manager 管理机器的IP - chenfool - 博客园](http://www.cnblogs.com/chenfool/p/3756066.html)解决。

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### 11. 迁移Cloudera Manager
### 12. 迁移Cloudera Manager
参考[将 Cloudera Manager Server 移至新主机](http://www.cloudera.com/content/www/zh-CN/documentation/enterprise/5-3-x/topics/cm_ag_restore_server.html)[迁移Cloudera Manager Server 至另一个节点](https://www.zybuluo.com/xtccc/note/186297)

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### 12. 集群卸载
### 13. 集群卸载

+ [官方文档--卸载 Cloudera Manager 和托管软件](http://www.cloudera.com/content/www/zh-CN/documentation/enterprise/5-3-x/topics/cm_ig_uninstall_cm.html)
+ [CDH 5.x 完全卸载指南](http://www.jianshu.com/p/79d1411aaa42):上述官方文档的中文翻译
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