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https://issues.apache.org/jira/browse/HADOOP-18937?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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kuper resolved HADOOP-18937.
----------------------------
    Resolution: Abandoned

> Add journalnode maintenance node list
> -------------------------------------
>
>                 Key: HADOOP-18937
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18937
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs
>    Affects Versions: 3.3.6
>            Reporter: kuper
>            Priority: Trivial
>
> * In the case of configuring 3 journal nodes in HDFS, if only 2 journal nodes 
> are available and 1 journal node fails to start due to machine issues, it 
> will result in a long initialization time for the namenode (around 30-40 
> minutes, depending on the IPC timeout and retry policy configuration). 
> * The failed journal node cannot recover immediately, but HDFS can still 
> function in this situation. In our production environment, we encountered 
> this issue and had to reduce the IPC timeout and adjust the retry policy to 
> accelerate the namenode initialization and provide services. 
> * I'm wondering if it would be possible to have a journal node maintenance 
> list to speed up the namenode initialization knowing that one journal node 
> cannot provide services in advance?



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