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https://issues.apache.org/jira/browse/HADOOP-7149?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran updated HADOOP-7149:
-----------------------------------
Component/s: net
> Topology script should have some kind of timeout
> ------------------------------------------------
>
> Key: HADOOP-7149
> URL: https://issues.apache.org/jira/browse/HADOOP-7149
> Project: Hadoop Common
> Issue Type: Improvement
> Components: net
> Affects Versions: 0.23.0
> Reporter: Todd Lipcon
>
> We've seen an issue where a custom topology script was hanging for some
> external reason. This caused the NN to block during startup without any kind
> of clear indication what was going on.
> We should consider adding a timeout for the topology script execution, or at
> least a timer which triggers WARN or ERROR level messages if it takes longer
> than a few seconds.
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