hadoop3.x ha高可用目录-马育民老师

# 理论

1. [hadoop3.x ha高可用-单点故障、主备集群角色、高可用、集群可用性评判标准](https://www.malaoshi.top/show_1IX26ClrhT1s.html "hadoop3.x ha高可用-单点故障、主备集群角色、高可用、集群可用性评判标准")

2. [hadoop3.x ha高可用-脑裂问题、数据同步问题、namenode单点故障](https://www.malaoshi.top/show_1IX26HUJr3Af.html "hadoop3.x ha高可用-脑裂问题、数据同步问题、namenode单点故障")

3. [hadoop3.x ha高可用-QJM解决方案、ZKFailoverController、Fencing隔离机制、Journal Node同步数据](https://www.malaoshi.top/show_1IX26KeAQn5B.html "hadoop3.x ha高可用-QJM解决方案、ZKFailoverController、Fencing隔离机制、Journal Node同步数据")

# 安装部署

4. [hadoop3.x ha高可用-集群规划](https://www.malaoshi.top/show_1IX26KlJNvxc.html "hadoop3.x ha高可用-集群规划")

5. [hadoop3.x ha高可用-安装部署](https://www.malaoshi.top/show_1IX26NUd2ZG9.html "hadoop3.x ha高可用-安装部署")

6. [hadoop3.x ha高可用-集群初始化、启动](https://www.malaoshi.top/show_1IX26kjPEdRV.html "hadoop3.x ha高可用-集群初始化、启动")

7. [hadoop3.x ha高可用-web服务、演示](https://www.malaoshi.top/show_1IX26lkMBrSy.html "hadoop3.x ha高可用-web服务、演示")

# 常见错误

1. [ERROR: but there is no HDFS_ZKFC_USER defined. Aborting operation](https://www.malaoshi.top/show_1IX26jwDVYgQ.html "ERROR: but there is no HDFS_ZKFC_USER defined. Aborting operation.")

1. [hadoop3.x ha高可用-常见错误：Journal Storage Directory  not formatted](https://www.malaoshi.top/show_1IX26ktUb0wh.html "hadoop3.x ha高可用-常见错误：Journal Storage Directory  not formatted")

2. [hadoop3.x ha高可用-常见错误：hadoop1和hadoop2只能启动一个namenode](https://www.malaoshi.top/show_1IX26ktZ4dwi.html "hadoop3.x ha高可用-常见错误：hadoop1和hadoop2只能启动一个namenode")

4. [hadoop3.x ha高可用-常见错误：不能切换namenode](https://www.malaoshi.top/show_1IX26lpSz8Y4.html "hadoop3.x ha高可用-常见错误：不能切换namenode")

# HDFS java api

1. [hadoop3.x ha hdfs api上传文件](https://www.malaoshi.top/show_1IX2FvQGaovb.html "hadoop3.x ha hdfs api上传文件")

# [hadoop3.x ha 切换回完全分布式](https://www.malaoshi.top/show_1IX2FveWizYW.html "hadoop3.x ha 切换回完全分布式")

原文出处：http://malaoshi.top/show_1IX26lrAGYw6.html