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https://issues.apache.org/jira/browse/HDFS-5450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13817747#comment-13817747
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Colin Patrick McCabe commented on HDFS-5450:
--------------------------------------------
We'll also need {{libhdfs}} support. Currently this is the {{libhdfs}} API for
getting block locations:
{code}
char*** hdfsGetHosts(hdfsFS fs, const char* path,
tOffset start, tOffset length);
{code}
We probably need to add a new API that returns structures rather than strings,
so that this and other information can be exposed to {{libhdfs}} users.
> better API for getting the cached blocks locations
> --------------------------------------------------
>
> Key: HDFS-5450
> URL: https://issues.apache.org/jira/browse/HDFS-5450
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Affects Versions: 3.0.0
> Reporter: Colin Patrick McCabe
> Assignee: Andrew Wang
> Priority: Minor
>
> Currently, we have to downcast the {{BlockLocation}] to {{HdfsBlockLocation}}
> to get information about whether a replica is cached. We should have this
> information in {{BlockLocation}} instead.
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