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https://issues.apache.org/jira/browse/HDFS-15645?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17243752#comment-17243752
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Ayush Saxena commented on HDFS-15645:
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bq. The DatanodeManager#getNumOfDataNodes() is used when verifying whether the
given ec policies are supported in the cluster setup.
Does HDFS-15117 or HDFS-14188 won't help in that case? Or is there some
limitation there as well.
> DatanodeManager.getNumOfDataNodes should consider the include set of host
> config.
> ---------------------------------------------------------------------------------
>
> Key: HDFS-15645
> URL: https://issues.apache.org/jira/browse/HDFS-15645
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Jinglun
> Assignee: Jinglun
> Priority: Major
> Attachments: HDFS-15645.001.patch
>
>
> Currently the DatanodeManager.getNumOfDataNodes() only count the size of
> datanodeMap. The nodes from host file's include set should also be counted.
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