[jira] [Resolved] (HADOOP-9674) RPC#Server#start does not block until server is fully initialized and listening

["Chris Nauroth (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-9674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Nauroth resolved HADOOP-9674.
-----------------------------------

    Resolution: Not A Problem

As per prior comments, this doesn't appear to be a real problem in practice, so I'm resolving it as not a problem.
                
> RPC#Server#start does not block until server is fully initialized and listening
> -------------------------------------------------------------------------------
>
>                 Key: HADOOP-9674
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9674
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 3.0.0, 2.2.0
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>            Priority: Minor
>
> This problem was originally mentioned in discussion on HADOOP-8980.  When calling {{RPC#Server#start}}, initialization of the server's internal {{Listener}} and {{Reader}} threads happens in the background.  This initialization is not guaranteed to complete by the time the caller returns from {{RPC#Server#start}}.  This may be misleading to a caller that expects the server has been fully initialized.  This problem sometimes manifests as a test failure in {{TestRPC#testStopsAllThreads}}.  This test looks at the stack frames of all running threads, expecting to find the {{Listener}} and {{Reader}} threads, but sometimes it doesn't find them.

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