[
https://issues.apache.org/jira/browse/HDFS-12778?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Virajith Jalaparti updated HDFS-12778:
--------------------------------------
Attachment: HDFS-12778-HDFS-9806.002.patch
Thanks for taking a look [~elgoiri]. Posting a new patch with the additional
test cases ({{testNumberOfProvidedLocations}} and
{{testNumberOfProvidedLocationsManyBlocks}}).
> [READ] Report multiple locations for PROVIDED blocks
> ----------------------------------------------------
>
> Key: HDFS-12778
> URL: https://issues.apache.org/jira/browse/HDFS-12778
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Virajith Jalaparti
> Assignee: Virajith Jalaparti
> Attachments: HDFS-12778-HDFS-9806.001.patch,
> HDFS-12778-HDFS-9806.002.patch
>
>
> On {{getBlockLocations}}, only one Datanode is returned as the location for
> all PROVIDED blocks. This can hurt the performance of applications which
> typically 3 locations per block. We need to return multiple Datanodes for
> each PROVIDED block for better application performance/resilience.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
