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From: Greg Hill <greg.hill@RACKSPACE.COM>
To: "dev@ambari.apache.org" <dev@ambari.apache.org>
Subject: Re: setting maintenance mode doesn't return a request id
Thread-Topic: setting maintenance mode doesn't return a request id
Thread-Index: AQHPvWPI4NkVdKKNzUWS/daIklaufJvbonaA//+xKQA=
Date: Thu, 21 Aug 2014 17:41:28 +0000
Message-ID: <D01B97D0.7B9E%greg.hill@rackspace.com>
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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=20
>>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
>>=20
>>http://c6401.ambari.apache.org:8080/api/v1/clusters/testcluster/hosts/c64
>>04.ambari.apache.org/host_components?fields=3DHostRoles/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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