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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-12173) NetworkTopology#add calls NetworkTopology#toString always
Date Thu, 11 May 2017 03:54:04 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-12173?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Konstantin Shvachko updated HADOOP-12173:
-----------------------------------------
    Fix Version/s: 2.7.4

I just committed this to branch-2.7.
Looks like it was intended for 2.7.3 based on CHANGES.txt, but didn't make it there.

> NetworkTopology#add calls NetworkTopology#toString always
> ---------------------------------------------------------
>
>                 Key: HADOOP-12173
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12173
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.7.0
>            Reporter: Inigo Goiri
>            Assignee: Inigo Goiri
>              Labels: release-blocker
>             Fix For: 2.8.0, 2.7.4, 3.0.0-alpha1
>
>         Attachments: HADOOP-12173-branch-2.7.patch, HADOOP-12173-v1.patch
>
>
> It always does a toString of the whole topology but this is not required when there are
no errors. This is adding a very big overhead to large clusters as it's walking the whole
tree every time we add a node to the cluster.
> HADOOP-10953 did some fix in that area but the errors is still there.



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