Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
MapReduce >> mail # user >> HDFS blockIDs vs paths


Copy link to this message
-
Re: HDFS blockIDs vs paths
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 <[EMAIL PROTECTED]> 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