[HADOOP-5595] NameNode does not need to run a replicator to choose a random DataNode - ASF JIRA

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Type: Improvement
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 0.21.0
Component/s: None
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Description

FSNamesystem#getRandomDatanode uses a replicator to choose a random DataNode. It's an overkill. Instead, Topology#chooseRandom is a much light-weight way to choose a random DataNode from a cluster map.

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randomDataNode.patch
30/Mar/09 22:37
1 kB
Hairong Kuang

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Assignee:: Hairong Kuang

Reporter:: Hairong Kuang

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Dates

Created:: 30/Mar/09 22:36

Updated:: 24/Aug/10 20:36

Resolved:: 02/Apr/09 22:15