hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jiayi Zhou (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-10702) Add a Client API and Proxy Provider to enable stale read from Standby
Date Thu, 28 Jul 2016 22:35:20 GMT
Jiayi Zhou created HDFS-10702:
---------------------------------

             Summary: Add a Client API and Proxy Provider to enable stale read from Standby
                 Key: HDFS-10702
                 URL: https://issues.apache.org/jira/browse/HDFS-10702
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Jiayi Zhou
            Assignee: Jiayi Zhou
            Priority: Minor


Currently, clients must always talk to the active NameNode when performing any metadata operation,
which means active NameNode could be a bottleneck for scalability. One way to solve this problem
is to send read-only operations to Standby NameNode. The disadvantage is that it might be
a stale read. 

Here, I'm thinking of adding a Client API to enable/disable stale read from Standby which
gives Client the power to set the staleness restriction.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-help@hadoop.apache.org


Mime
View raw message