[jira] [Assigned] (YARN-8096) Wrong condition in AmIpFilter#getProxyAddresses() to update the proxy IP list

["Íñigo Goiri (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-8096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Íñigo Goiri reassigned YARN-8096:
---------------------------------

    Assignee: Oleksandr Shevchenko

> Wrong condition in AmIpFilter#getProxyAddresses() to update the proxy IP list
> -----------------------------------------------------------------------------
>
>                 Key: YARN-8096
>                 URL: https://issues.apache.org/jira/browse/YARN-8096
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 3.0.0
>            Reporter: Oleksandr Shevchenko
>            Assignee: Oleksandr Shevchenko
>            Priority: Major
>         Attachments: YARN-8096.001.patch
>
>
> In AmIpFilter#getProxyAddresses() we have the following condition:
> {code:java}
>  if (proxyAddresses == null || (lastUpdate + UPDATE_INTERVAL) >= now) { 
>    //update RM address 
>  }
> {code}
> By design, the address should be updated if the last update was more then 5 min ago. But as we see this condition is wrong.
> Currently, RM address updates permanently. But after 5 minutes after the last update, RM address will never be updated again. As a result, we are always redirected to the fail page that was added by YARN-4767, even if a network issue is resolved now.
> So, we should change this condition to:
> {code:java}
>  if (proxyAddresses == null || (lastUpdate + UPDATE_INTERVAL) <= now) \{ 
>    //update RM address 
>  }
> {code}



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