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https://issues.apache.org/jira/browse/HDFS-13477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16448329#comment-16448329
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Elek, Marton commented on HDFS-13477:
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Http servers contain the jmx web endpoints which could be very important for
monitoring the cluster.
I can accept if the KSM/SCM will start without http server but I would like to
say that sometimes it could be dangerous. Sometimes failing fast/early is more
useful.
> Httpserver start failure should be non fatal for KSM and SCM startup
> --------------------------------------------------------------------
>
> Key: HDFS-13477
> URL: https://issues.apache.org/jira/browse/HDFS-13477
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: HDFS-7240
> Reporter: Ajay Kumar
> Assignee: Ajay Kumar
> Priority: Major
> Fix For: HDFS-7240
>
> Attachments: HDFS-13477-HDFS-7240.00.patch
>
>
> Currently KSM and SCMÂ startup will fail if corresponding HttpServer fails
> with some Exception. HttpServer is not essential for operations of KSM and
> SCM so we should allow them to start even if httpServer fails.
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