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https://issues.apache.org/jira/browse/MESOS-6596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15813324#comment-15813324
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Michael Park commented on MESOS-6596:
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[~zhitao] I see, with 50 frameworks it seems likely that putting a filter on
resources for a specific framework is not sufficient.
(1) I don't think that call would benefit from being aware of what role the
resources are going to be reserved for later.
(2) Seems like a good idea
Actually, I think this approach would require that we have some way to push to
the front of the libprocess message queue rather than at the back...
since {{updateAvailable}} message is getting to the allocator "as soon as it
can" by being queued to the back.
cc [~neilc] [~bmahler]
> Dynamic reservation endpoint returns 409s
> -----------------------------------------
>
> Key: MESOS-6596
> URL: https://issues.apache.org/jira/browse/MESOS-6596
> Project: Mesos
> Issue Type: Bug
> Components: master
> Reporter: Kunal Thakar
>
> The operation to dynamically reserve a host for a framework consistently
> fails, but succeeds sometimes.
> We are calling the /reserve endpoint on the master with the same payload and
> it mostly returns 409, with the occasional success. Pasting the output of two
> consecutive /reserve calls:
> {code}
> * About to connect() to computexxx-yyy port 5050 (#0)
> * Trying 10.184.21.3... connected
> * Server auth using Basic with user 'cassandra'
> > POST /master/reserve HTTP/1.1
> > Authorization: Basic blah
> > User-Agent: curl/7.22.0 (x86_64-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.2j
> > zlib/1.2.3.4 libidn/1.23 librtmp/2.3
> > Host: computexxx-yyy:5050
> > Accept: */*
> > Content-Length: 1046
> > Content-Type: application/x-www-form-urlencoded
> > Expect: 100-continue
> >
> * Done waiting for 100-continue
> < HTTP/1.1 409 Conflict
> HTTP/1.1 409 Conflict
> < Date: Tue, 15 Nov 2016 23:07:10 GMT
> Date: Tue, 15 Nov 2016 23:07:10 GMT
> < Content-Type: text/plain; charset=utf-8
> Content-Type: text/plain; charset=utf-8
> < Content-Length: 58
> Content-Length: 58
> * HTTP error before end of send, stop sending
> <
> * Closing connection #0
> Invalid RESERVE Operation: does not contain mem(*):120621
> {code}
> {code}
> * About to connect() to computexxx-yyy port 5050 (#0)
> * Trying 10.184.21.3... connected
> * Server auth using Basic with user 'cassandra'
> > POST /master/reserve HTTP/1.1
> > Authorization: Basic blah
> > User-Agent: curl/7.22.0 (x86_64-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.2j
> > zlib/1.2.3.4 libidn/1.23 librtmp/2.3
> > Host: computexxx-yyy:5050
> > Accept: */*
> > Content-Length: 1046
> > Content-Type: application/x-www-form-urlencoded
> > Expect: 100-continue
> >
> * Done waiting for 100-continue
> < HTTP/1.1 202 Accepted
> HTTP/1.1 202 Accepted
> < Date: Tue, 15 Nov 2016 23:07:16 GMT
> Date: Tue, 15 Nov 2016 23:07:16 GMT
> < Content-Length: 0
> Content-Length: 0
> {code}
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