Re: DC/OS dynamic reservation dosen't work

[caogaojin <ca...@cmss.chinamobile.com>]

dear Haosdent, 

> Why you send reserve request to http://10.132.46.81:5050/unreserve <http://10.132.46.81:5050/unreserve>, is it should be "http://10.132.46.81:5050/reserve <http://10.132.46.81:5050/reserve>”?

my bad; actually i use http://10.132.46.81:5050/reserve for reservation, and http://10.132.46.81:5050/unreserve
for releasing resources  :)

> And why you add
> 
> ```
>  "reservation": {}
> ```


if i do not add this, mesos will report error: 

```
HTTP/1.1 400 Bad Request
Date: Sun, 01 May 2016 01:11:50 GMT
Content-Length: 75

Invalid RESERVE operation: Resource cpus(dev):1 is not dynamically reserved
```

> in the resource define? Which role you used when start Marathon?

i’m using `dev` role in marathon. 



Best Regards.

GaoJin CAO 
ChinaMobile(Suzhou) R&D
Phone：18896723732 
Mail：caogaojin at cmss.chinamobile.com <http://cmss.chinamobile.com/>
> On May 1, 2016, at 02:40, haosdent <ha...@gmail.com> wrote:
> 
> And why you add
> 
> ```
>  "reservation": {}
> ```
> 
> in the resource define? Which role you used when start Marathon?
> 
> 
> On Sun, May 1, 2016 at 2:28 AM, haosdent <haosdent@gmail.com <ma...@gmail.com>> wrote:
> Why you send reserve request to http://10.132.46.81:5050/unreserve <http://10.132.46.81:5050/unreserve>, is it should be "http://10.132.46.81:5050/reserve <http://10.132.46.81:5050/reserve>"?
> 
> On Sun, May 1, 2016 at 1:59 AM, caogaojin <caogaojin@cmss.chinamobile.com <ma...@cmss.chinamobile.com>> wrote:
> Anyone has such experiences? I think it may be a dynamic reservation issue. 
> In my situation, i turn off mesos authentication mechanism, will this be a problem?
> 
> GaoJin CAO 
> ChinaMobile(Suzhou) R&D
> Phone：18896723732 
> Mail：caogaojin at cmss.chinamobile.com <http://cmss.chinamobile.com/>
> 
>> On May 1, 2016, at 01:49, caogaojin <caogaojin@cmss.chinamobile.com <ma...@cmss.chinamobile.com>> wrote:
>> 
>> Hi list,
>> 
>> I’m currently using dynamic reservation mechanism with mesosphere/DCOS 1.7, the opensourced version, 
>> and something wired just happened. I tried to setup a new marathon service from the universe repo, 
>> and i did a slight modification, setting mesos_role to `dev`. i also turned off mesos anthentication 
>> mechenism. 
>> 
>> My steps are:
>> 
>> First i tried to reserve 2 cpu and 1743 ram to `dev` role using http endpoint, and it works:
>> # curl -i -d slaveId=e6d590b1-5f2d-4be9-93fd-2fac364584cf-S11 \
>> -d resources='[
>> {
>>             "name": "cpus",
>>             "type": "SCALAR",
>>             "scalar": {
>>               "value": 2.0
>>             },
>>             "role": "dev",
>>               "reservation": {
>>               }
>> 
>> },
>> {
>>             "name": "mem",
>>             "type": "SCALAR",
>>             "scalar": {
>>               "value": 1024.0
>> 
>>             },
>>             "role": "dev",
>>               "reservation": {
>>               }
>> }
>> ]' -X POST http://10.132.46.81:5050/unreserve <http://10.132.46.81:5050/unreserve>
>> 
>> Second, the slave shows following infomation:
>> # curl http://10.132.46.81/mesos/slaves <http://10.132.46.81/mesos/slaves>
>> reserved_resources_full: {
>> dev: [
>> {
>> name: "cpus",
>> type: "SCALAR",
>> scalar: {
>> value: 2
>> },
>> role: "dev",
>> reservation: { }
>> },
>> {
>> name: "mem",
>> type: "SCALAR",
>> scalar: {
>> value: 1743
>> },
>> role: "dev",
>> reservation: { }
>> }
>> ]
>> },
>> 
>> Third, i tried to run nginx using the new marathon service, which i also set the task only accept `dev` resources, 
>> 
>> ID: /nginx
>> ...
>> Resource Roles:  dev
>> 
>> 4.  on marathon ui i just see the waiting status, which means there’s no suitable resource offer, marathon reports:
>> 
>> Insufficient resources for [/nginx] (need cpus=1.0, mem=128.0, disk=0.0, ports=(1 dynamic), available in offer: [id { value: "e6d590b1-5f2d-4be9-93fd-2fac364584cf-O7476" } framework_id { value: "e6d590b1-5f2d-4be9-93fd-2fac364584cf-0006" } slave_id { value: "e6d590b1-5f2d-4be9-93fd-2fac364584cf-S11" } hostname: "10.132.46.84" resources { name: "ports" type: RANGES ranges { range { begin: 8182 end: 32000 } } role: "dev" reservation { } } resources { name: "cpus" type: SCALAR scalar { value: 2.0 } role: "dev" reservation { } } resources { name: "mem" type: SCALAR scalar { value: 1743.0 } role: "dev" reservation { } } resources { name: "ports" type: RANGES ranges { range { begin: 1025 end: 2180 } range { begin: 2182 end: 3887 } range { begin: 3889 end: 5049 } range { begin: 5052 end: 6326 } range { begin: 6328 end: 8079 } range { begin: 8082 end: 8180 } } role: "*" } resources { name: "disk" type: SCALAR scalar { value: 41497.0 } role: "*" } resources { name: "cpus" type: SCALAR scalar { value: 1.0 } role: "*" } resources { name: "mem" type: SCALAR scalar { value: 896.0 } role: "*" } url { scheme: "http" address { hostname: "10.132.46.84" ip: "10.132.46.84" port: 5051 } path: "/slave(1)" }] (mesosphere.mesos.TaskBuilder:marathon-akka.actor.default-dispatcher-19)
>> 
>> can anyone help me with this?
>> 
>> thank you.
>> 
>> 
>> GaoJin CAO 
>> ChinaMobile(Suzhou) R&D
>> Phone：18896723732 
>> Mail：caogaojin at cmss.chinamobile.com <http://cmss.chinamobile.com/>
> 
> 
> 
> 
> -- 
> Best Regards,
> Haosdent Huang
> 
> 
> 
> -- 
> Best Regards,
> Haosdent Huang