thanks @haosdent, here is the explanation https://github.com/mesosphere/marathon/issues/3851#issuecomment-216192331 <https://github.com/mesosphere/marathon/issues/3851#issuecomment-216192331> -- Best Regards,
GaoJin CAO ChinaMobile(Suzhou) R&D Mail：caogaojin at cmss.chinamobile.com <http://cmss.chinamobile.com/> > On May 2, 2016, at 12:00, haosdent <[email protected]> wrote: > > Actually "unreserved" here in Marathon means Resources which don't contains > ReservationInfo. For static reservation, they didn't contains > ReservationInfo, so they are "unreserved". For dynamic reservation, they have > ReservationInfo, so they are "reserved". This is why your task works in > static reservation while could not work in dynamic reservation. > > On Mon, May 2, 2016 at 9:10 AM, caogaojin <[email protected] > <mailto:[email protected]>> wrote: > @Haosdent, sorry for delay; i’m not familiar with scala, the compilation > takes me some time. you are right, after changing the file you told me, it > works. But that’s not what i want, it my situation, marathon should takes > both reserved resource and unreserved resource; when using official marathon > version, marathon will use static reserved resources (mesos agent started > with `--default_role dev` flag, and marathon with `--mesos_role dev`), but it > seems marathon did not take static reserved resource as *reserved resource*, > > ``` > Considering unreserved resources with roles {dev}. Not all basic resources > satisfied: cpus NOT SATISFIED (1.0 > 0.0), mem NOT SATISFIED (128.0 > 0.0) > (mesosphere.mesos.ResourceMatcher$:marathon-akka.actor.default-dispatcher-6) > ``` > > the above shows that marathon only considers *unreserved* resources with role > `dev`. However IMO, all resources with role `dev` should be reserved > resources, right? i’m quite confused, @haosdent, are resources provided by > mesos agent that started with `--default_role dev` flag unreseved resources? > i will advise mesosphere/marathon community for more help. > > Thanks, > > -- > Best Regards, > > GaoJin CAO > ChinaMobile(Suzhou) R&D > Mail：caogaojin at cmss.chinamobile.com <http://cmss.chinamobile.com/> >> On May 1, 2016, at 18:04, haosdent <[email protected] >> <mailto:[email protected]>> wrote: >> >> This may be a feature of Marathon. I saw it only filter resources from those >> unreserved resources. After change >> >> ``` >> diff --git a/src/main/scala/mesosphere/mesos/TaskBuilder.scala >> b/src/main/scala/mesosphere/mesos/TaskBuilder.scala >> index efa3406..e750881 100644 >> --- a/src/main/scala/mesosphere/mesos/TaskBuilder.scala >> +++ b/src/main/scala/mesosphere/mesos/TaskBuilder.scala >> @@ -80,7 +80,7 @@ class TaskBuilder(app: AppDefinition, >> >> val resourceMatch = >> ResourceMatcher.matchResources( >> - offer, app, runningTasks, ResourceSelector(acceptedResourceRoles, >> reserved = false)) >> + offer, app, runningTasks, ResourceSelector(acceptedResourceRoles, >> reserved = true)) >> >> build(offer, resourceMatch) >> } >> ``` >> >> It would use the dynamic resources we reserved before. I find Marathon >> document have these words: >> >> ``` >> ### Static Reservations >> >> Dynamic reservations can only be created for unreserved resources. If you >> specify an agent's resources to be reserved for a role via the Mesos >> `--resources` or `--default_role` flag, these resources cannot be used for >> dynamic reservations. In addition, if Marathon is started with the >> `--default_accepted_resource_roles` flag specifying a value that does not >> contain `*`, your application definition should explicitly specify >> `"acceptedResourceRoles": ["*"]` in order to allow usage and reservation of >> unreserved cluster resources. >> ``` >> >> You could double check this with Marathon mailing list >> https://groups.google.com/forum/?hl=en#!forum/marathon-framework >> <https://groups.google.com/forum/?hl=en#!forum/marathon-framework> . Thanks >> a lot! >> >> On Sun, May 1, 2016 at 5:07 PM, haosdent <[email protected] >> <mailto:[email protected]>> wrote: >> hmm, I am still digging more information in marathon. It may delay because I >> am not familiar with marathon's code and sick today, but I would inform you >> once have result. My quick conclusion is this may be the bug of marathon >> when match resource requirement in offers from Mesos Master. Still under >> finding the root cause of it. >> >> On Sun, May 1, 2016 at 4:24 PM, caogaojin <[email protected] >> <mailto:[email protected]>> wrote: >> @Haosdent, what does http://10.132.46.71:5050/roles >> <http://10.132.46.71:5050/roles> mean? shouldn’t that tell us all resources >> that framework with `dev` role takes, both from `dev` and `*` role? It >> doesn’t mean resources are consumed from `dev` role, right? >> -- >> Best Regards, >> >> GaoJin CAO >> ChinaMobile(Suzhou) R&D >> Mail：caogaojin at cmss.chinamobile.com <http://cmss.chinamobile.com/> >>> On May 1, 2016, at 16:02, caogaojin <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> >>> ``` >>> [root@localhost ~]# curl http://10.132.46.71:5050/roles >>> <http://10.132.46.71:5050/roles> | python -m json.tool >>> % Total % Received % Xferd Average Speed Time Time Time >>> Current >>> Dload Upload Total Spent Left >>> Speed >>> 100 250 100 250 0 0 46772 0 --:--:-- --:--:-- --:--:-- >>> 50000 >>> { >>> "roles": [ >>> { >>> "frameworks": [], >>> "name": "*", >>> "resources": { >>> "cpus": 0, >>> "disk": 0, >>> "mem": 0 >>> }, >>> "weight": 1.0 >>> }, >>> { >>> "frameworks": [ >>> "439a851d-aa09-47af-bc68-d5588dc9f5da-0002" >>> ], >>> "name": "dev", >>> "resources": { >>> "cpus": 1.0, >>> "disk": 0, >>> "mem": 128.0, >>> "ports": "[31994-31994]" >>> }, >>> "weight": 1.0 >>> } >>> ] >>> } >>> ``` >> >> >> >> >> -- >> Best Regards, >> Haosdent Huang >> >> >> >> -- >> Best Regards, >> Haosdent Huang > > > > > -- > Best Regards, > Haosdent Huang
