[
https://issues.apache.org/jira/browse/HDFS-14635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16880104#comment-16880104
]
Wei-Chiu Chuang commented on HDFS-14635:
----------------------------------------
Not familiar with this part of code. Is this related to HDFS-11242?
> Support to refresh the rack awareness dynamically
> --------------------------------------------------
>
> Key: HDFS-14635
> URL: https://issues.apache.org/jira/browse/HDFS-14635
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs
> Affects Versions: 2.7.2
> Reporter: liying
> Priority: Major
>
> At present , there are two ways to load the rack script in the hadoop codes.
> The class ScriptBasedMapping is the cache way, and the class
> ScriptBasedMapping#RawScriptBasedMapping is the way that
> it will load script every time（every request）。 The cache is the good way to
> implement this feature， because it consumes cpu performance if loading the
> script for every quest。But here's another question that is we cann't refresh
> the cache, so it is import to support to refresh the rack awareness
> dynamically.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
