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https://issues.apache.org/jira/browse/HDFS-6082?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rafal Wojdyla updated HDFS-6082:
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Description:
HAAdmin let's you determine state of *given* service. It would be nice to have
a call to determine states of all Namenodes (services?), something like:
hdfs haadmin -ns foobar -getServicesState
And the output would be:
hostname | state
This can be implemented at HAAdmin level - for all HA services or at DFSHAAdmin
level - for Namenode HA only.
was:
HAAdmin let's you determine state of *given* service. It would be nice to have
a call to determine states of all Namenodes (services?), something like:
hdfs haadmin -getServicesState
And the output would be:
hostname | state
This can be implemented at HAAdmin level - for all HA services or at DFSHAAdmin
level - for Namenode HA only.
> List all NNs with state
> -----------------------
>
> Key: HDFS-6082
> URL: https://issues.apache.org/jira/browse/HDFS-6082
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: ha, namenode
> Reporter: Rafal Wojdyla
>
> HAAdmin let's you determine state of *given* service. It would be nice to
> have a call to determine states of all Namenodes (services?), something like:
> hdfs haadmin -ns foobar -getServicesState
> And the output would be:
> hostname | state
> This can be implemented at HAAdmin level - for all HA services or at
> DFSHAAdmin level - for Namenode HA only.
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