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https://issues.apache.org/jira/browse/MESOS-9189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16608986#comment-16608986
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Alexander Rukletsov commented on MESOS-9189:
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This is still in {{master}}. Is it on purpose [~gkleiman], [~bmahler]?
> Include 'Connection: close' header in master streaming API responses.
> ---------------------------------------------------------------------
>
> Key: MESOS-9189
> URL: https://issues.apache.org/jira/browse/MESOS-9189
> Project: Mesos
> Issue Type: Improvement
> Components: HTTP API
> Reporter: Benjamin Mahler
> Assignee: Benjamin Mahler
> Priority: Major
> Attachments: bad_run.txt, good_run.txt
>
>
> We've seen some HTTP intermediaries (e.g. ELB) decide to re-use connections
> to mesos as an optimization to avoid re-connection overhead. As a result,
> when the end-client of the streaming API disconnects from the intermediary,
> the intermediary leaves the connection to mesos open in an attempt to re-use
> the connection for another request once the response completes. Mesos then
> thinks that the subscriber never disconnected and the intermediary happily
> continues to read the streaming events even though there's no end-client.
> To help indicate to intermediaries that the connection SHOULD NOT be re-used,
> we can set the 'Connection: close' header for streaming API responses. It may
> not be respected (since the language seems to be SHOULD NOT), but some
> intermediaries may respect it and close the connection if the end-client
> disconnects.
> Note that libprocess' http server currently doesn't close the the connection
> based on a handler setting this header, but it doesn't matter here since the
> streaming API responses are infinite.
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