I think for this case you want to set up HA name nodes [1].

> https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithNFS.html

that will allow you to set the checkpoint dir as: `hdfs://mycluster/XXX`

P.

On 05/23/2017 01:56 PM, yunfan123 wrote:
> For now I can only config like:
> state.backend.fs.checkpointdir: hdfs://namenodehost:port/XXX
> But the machine running namenode may be down.
> This config should support multi path in case of some become unavailable.
> Normally, user should make sure any of them can be used.
> 
> 
> 
> 
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