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From Dmitry Lysnichenko <dlysniche...@hortonworks.com>
Subject Re: setting maintenance mode doesn't return a request id
Date Thu, 21 Aug 2014 17:47:45 GMT
Hi Greg,

Targets are put to MM immediately (during request). The background task
only updates Nagios configuration to ignore alerts for MM components.


On Thu, Aug 21, 2014 at 8:41 PM, Greg Hill <greg.hill@rackspace.com> wrote:

> I guess I'm confused then.  It triggers a background task that takes 17s
> to complete according to the UI, but returns immediately.  Is the UI
> wrong?  It definitely isn't immediate; it has to wait for it to update
> nagios before it's safe to proceed doing destructive things.
>
> Greg
>
> On 8/21/14 12:24 PM, "Siddharth Wagle" <swagle@hortonworks.com> wrote:
>
> >Hi Greg,
> >
> >A response to a POST request will have a body with the (request id) only
> >if
> >the POST request triggers a asynchronous operation and the request id is a
> >way of tracking the operation.
> >
> >Putting a host in Maintenance mode is not an async op, so this is working
> >as expected.
> >
> >Regards,
> >Sid
> >
> >
> >On Thu, Aug 21, 2014 at 10:17 AM, Greg Hill <greg.hill@rackspace.com>
> >wrote:
> >
> >> I have two ways that I know of to enable maintenance mode on a host, but
> >> it seems like neither one returns a request id, where pretty much every
> >> other API call that generates a request does return an id.  Is this a
> >>bug?
> >>
> >> I'm testing against ambari 1.6.1
> >>
> >> PUT
> >>http://c6401.ambari.apache.org:8080/api/v1/clusters/testcluster/hosts
> >> {"RequestInfo": {"query": "Hosts/host_name.in(c6404.ambari.apache.org
> )",
> >> "context": "Start Maintenance Mode"}, "Body": {"Hosts":
> >> {"maintenance_state": "ON"}}}
> >>
> >> Response is a 200 with an empty response body.
> >>
> >> Alternatively:
> >>
> >> PUT
> >>
> >>
> http://c6401.ambari.apache.org:8080/api/v1/clusters/testcluster/hosts/c64
> >>04.ambari.apache.org/host_components?fields=HostRoles/state
> >> {"RequestInfo": {"context": "Start Maintenance Mode"}, "Body":
> >> {"HostRoles": {"maintenance_state": "ON"}}}
> >>
> >> Same response.  200 OK, no body.
> >>
> >> Thanks in advance for any help.
> >>
> >> Greg
> >>
> >
> >--
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>


-- 
Thanks,
Dmitry

-- 
CONFIDENTIALITY NOTICE
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