You are viewing a plain text version of this content. The canonical link for it is here.
Posted to hdfs-issues@hadoop.apache.org by "Jiandan Yang (JIRA)" <ji...@apache.org> on 2018/03/02 03:10:00 UTC
[jira] [Updated] (HDFS-9666) Enable hdfs-client to read even remote
SSD/RAM prior to local disk replica to improve random read
[ https://issues.apache.org/jira/browse/HDFS-9666?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jiandan Yang updated HDFS-9666:
--------------------------------
Attachment: HDFS-9666.001.patch
> Enable hdfs-client to read even remote SSD/RAM prior to local disk replica to improve random read
> -------------------------------------------------------------------------------------------------
>
> Key: HDFS-9666
> URL: https://issues.apache.org/jira/browse/HDFS-9666
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs-client
> Affects Versions: 2.6.0, 2.7.0
> Reporter: ade
> Assignee: ade
> Priority: Major
> Attachments: HDFS-9666.0.patch, HDFS-9666.001.patch
>
>
> We want to improve random read performance of HDFS for HBase, so enabled the heterogeneous storage in our cluster. But there are only ~50% of datanode & regionserver hosts with SSD. we can set hfile with only ONE_SSD not ALL_SSD storagepolicy and the regionserver on none-SSD host can only read the local disk replica . So we developed this feature in hdfs client to read even remote SSD/RAM prior to local disk replica.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-help@hadoop.apache.org