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Posted to common-dev@hadoop.apache.org by "Junping Du (Created) (JIRA)" <ji...@apache.org> on 2012/03/06 17:26:57 UTC

[jira] [Created] (HADOOP-8144) pseudoSortByDistance in NetworkTopology doesn't work properly if no local node and first node is local rack node

pseudoSortByDistance in NetworkTopology doesn't work properly if no local node and first node is local rack node
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                 Key: HADOOP-8144
                 URL: https://issues.apache.org/jira/browse/HADOOP-8144
             Project: Hadoop Common
          Issue Type: Bug
          Components: io
    Affects Versions: 1.0.0, 0.23.0
            Reporter: Junping Du
            Priority: Minor


pseudoSortByDistance in NetworkTopology.java should sort nodes according to its distance with reader as local node, local rack node, ... 
But if there is no local node with reader in nodes and the first node is local rack node with reader, then it will put a random node at position 0.

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