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https://issues.apache.org/jira/browse/HDFS-15785?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Leon Gao updated HDFS-15785:
----------------------------
Description:
Currently as HDFS supports observers, multiple-standby and router, the namenode
hosts are changing frequently in large deployment, we can consider supporting
https://issues.apache.org/jira/browse/HDFS-14118 on datanode to reduce the need
to update config frequently on all datanodes. In that case, datanode and
clients can use the same set of config as well.
Basically we can resolve the DNS and generate namenode for each IP behind it.
was:
Currently as HDFS supports observers, multiple-standby and router, the namenode
hosts are changing frequently in large deployment, we can consider supporting
https://issues.apache.org/jira/browse/HDFS-14118 on datanode to reduce the need
to update config frequently. In that case, datanode and clients can use the
same set of config as well.
Basically we can resolve the DNS and generate namenode for each IP behind it.
> Datanode to support using DNS to resolve nameservices to IP addresses to get
> list of namenodes
> ----------------------------------------------------------------------------------------------
>
> Key: HDFS-15785
> URL: https://issues.apache.org/jira/browse/HDFS-15785
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: Leon Gao
> Assignee: Leon Gao
> Priority: Major
>
> Currently as HDFS supports observers, multiple-standby and router, the
> namenode hosts are changing frequently in large deployment, we can consider
> supporting https://issues.apache.org/jira/browse/HDFS-14118 on datanode to
> reduce the need to update config frequently on all datanodes. In that case,
> datanode and clients can use the same set of config as well.
> Basically we can resolve the DNS and generate namenode for each IP behind it.
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