Vinod Kumar Vavilapalli commented on YARN-7497:

How does this related to the ConfigurationProvider interface and the 
corresponding HDFS implementation done at YARN-1611?

If their goals are the same, it's high time we merge these interfaces via 

> Add HDFSSchedulerConfigurationStore for RM HA
> ---------------------------------------------
>                 Key: YARN-7497
>                 URL: https://issues.apache.org/jira/browse/YARN-7497
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: yarn
>            Reporter: Jiandan Yang 
>            Assignee: Jiandan Yang 
>            Priority: Major
>         Attachments: YARN-7497.001.patch, YARN-7497.002.patch, 
> YARN-7497.003.patch, YARN-7497.004.patch, YARN-7497.005.patch, 
> YARN-7497.006.patch
> YARN-5947 add LeveldbConfigurationStore using Leveldb as backing store, but 
> it does not support Yarn RM HA. 
> YARN-6840 supports RM HA, but too many scheduler configurations may exceed 
> znode limit, for example 10 thousand queues.
> HDFSSchedulerConfigurationStore store conf file in HDFS, when RM failover, 
> new active RM can load scheduler configuration from HDFS.

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