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From Harsh J <ha...@cloudera.com>
Subject Re: HDFS blockIDs vs paths
Date Fri, 19 Jul 2013 02:09:32 GMT
DataNodes track it. See and trace the volumeMap,
https://github.com/apache/hadoop-common/blob/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java#L172

On Fri, Jul 19, 2013 at 5:22 AM, John Lilley <john.lilley@redpoint.net> wrote:
> In HDFS, who tracks the filesystem path on the datanode of each block?  The
> namenode or the datanode?  If datanode, where is that table stored?
>
> John
>
>



-- 
Harsh J

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