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https://issues.apache.org/jira/browse/HADOOP-5163?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jakob Homan reassigned HADOOP-5163:
-----------------------------------
Assignee: Jakob Homan
> FSNamesystem#getRandomDatanode() should not use Replicator to choose a random
> datanode
> --------------------------------------------------------------------------------------
>
> Key: HADOOP-5163
> URL: https://issues.apache.org/jira/browse/HADOOP-5163
> Project: Hadoop Core
> Issue Type: Improvement
> Components: dfs
> Reporter: Hairong Kuang
> Assignee: Jakob Homan
> Fix For: 0.21.0
>
>
> Below is the code:
> public DatanodeDescriptor getRandomDatanode() {
> return replicator.chooseTarget(1, null, null, 0)[0];
> }
> Using Replicator to choose a random datanode is an overkill. It is very
> expensive and unnecessary.
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