Pratik,
You can change the form data to something like this:
{"RequestInfo":{"context":"Start
MyComponent"},"Body":{"HostRoles":{"state":"STARTED"}}}
The Background Ops dialog in the UI displays the "RequestInfo/context" value
that was passed when the API call is made.
I hope this helps.
Yusaku
From: Pratik Gadiya
<[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Date: Tuesday, June 16, 2015 12:01 PM
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: FW: Adding Hosts to Existing Cluster | Ambari 1.7.0
Hello All,
I was able to add a host to the existing hortonworks cluster by following the
steps mentioned in the link
https://cwiki.apache.org/confluence/display/AMBARI/Add+a+host+and+deploy+components+using+APIs
However, I need some pointers to resolve one of my problem which is mentioned
as below,
When I try to execute following command on a already exisitin hadoop cluster
curl --user admin:admin -i -X PUT -d '{"HostRoles": {"state": "STARTED"}}'
http://AMBARI_SERVER_HOST:8080/api/v1/clusters/CLUSTER_NAME/hosts/NEW_HOST_ADDED/host_components/<SERVICE_NAME<http://AMBARI_SERVER_HOST:8080/api/v1/clusters/CLUSTER_NAME/hosts/NEW_HOST_ADDED/host_components/%3cSERVICE_NAME>>
On the ambari UI at the top left corner there is a notification saying that 1
operation is in progress and when I click on that it, it displays “Request name
not specified” as the message body however, the deployment progress bar is
working.
Can we change this to something like a message body which we pass while
executing the above statement itself, so that we can get that message when we
click on 1 ops in ambari UI (instead of seeing Request name not specified )
Thanks,
Pratik
From: Jeff Sposetti [mailto:[email protected]]
Sent: Sunday, May 17, 2015 9:17 PM
To: [email protected]<mailto:[email protected]>
Subject: Re: Adding Hosts to Existing Cluster | Ambari 1.7.0
Hi,
Posted a comment to https://issues.apache.org/jira/browse/AMBARI-8458 that
includes a brief (simple) example.
Note: this is for Ambari 2.0.0. Apologies if I didn’t highlight that earlier.
If you sticking with Ambari 1.7 and not upgrading to 2.0, then you will have to
use the other API methods described. But once you get to Ambari 2.0, this API
becomes an option.
Hope this helps.
Jeff
From: Pratik Gadiya
<[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Date: Sunday, May 17, 2015 at 10:57 AM
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: RE: Adding Hosts to Existing Cluster | Ambari 1.7.0
I think I will stick to the approach mentioned in
https://issues.apache.org/jira/browse/AMBARI-8458 . This approach seems to be
pretty easy to use.
Can someone help me out on the same ?
Please see the below mail conversions with Jeff for detail.
Help much appreciated !!
~Pratik
From: Yusaku Sako [mailto:[email protected]]
Sent: Sunday, May 17, 2015 6:32 PM
To: [email protected]<mailto:[email protected]>
Subject: Re: Adding Hosts to Existing Cluster | Ambari 1.7.0
I think others can help you with the blueprint-style add host call.
In the meantime, you should also look at
https://cwiki.apache.org/confluence/display/AMBARI/Bulk+install+components+on+selected+hosts
Thanks,
Yusaku
From: Pratik Gadiya
<[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Date: Sunday, May 17, 2015 4:22 AM
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: RE: Adding Hosts to Existing Cluster | Ambari 1.7.0
Jeff,
I had a look on the link which you had provided, however I am not sure why it
didn’t worked for me.
Below is the command which I tried,
Command:
curl --user admin:admin -H "X-Requested-By: ambari" -i -X POST -d
'{"blueprint_name": "mymasterblueprint", "host_group": "compute"}'
https://XX.XX.XX.XX:8443/api/v1/clusters/CLUSTER/hosts/vmkdev0027.persistent.com
Response:
HTTP/1.1 400 Bad Request
Set-Cookie: AMBARISESSIONID=15w0nek4yww411pi8iqy70c8u5;Path=/
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Content-Type: text/plain
Content-Length: 160
Server: Jetty(7.6.7.v20120910)
{
"status" : 400,
"message" : "The properties [blueprint, host_group] specified in the request
or predicate are not supported for the resource type Host."
}
Please let me know if I have missed something.
Note :
vmkdev0027.persistent.com - Is the host which I need to add,
CLUSTER - Specified in the URL is my cluster name
Thanks & Regards,
Pratik
From: Jeff Sposetti [mailto:[email protected]]
Sent: Sunday, May 17, 2015 1:15 PM
To: [email protected]<mailto:[email protected]>
Subject: Re: Adding Hosts to Existing Cluster | Ambari 1.7.0
Have you looked at using Blueprints API for "add host"?
https://issues.apache.org/jira/browse/AMBARI-8458
________________________________
From: Pratik Gadiya
<[email protected]<mailto:[email protected]>>
Sent: Sunday, May 17, 2015 1:57 AM
To: [email protected]<mailto:[email protected]>
Subject: Adding Hosts to Existing Cluster | Ambari 1.7.0
Hi All,
I want to add hosts to the existing hadoop cluster which is deployed via ambari
rest api’s.
For the same, I am referring to link
https://cwiki.apache.org/confluence/display/AMBARI/Add+a+host+and+deploy+components+using+APIs
In the above link, we can observe that we have to make POST REST calls to
install the services on the newly added hosts.
Here the number of such REST calls would be equivalent to number of services
which we want to install (like shown as below )
[cid:[email protected]]
I am wondering, if there is any way by which I can install this many number of
services such as DATANODE, GANGLIA_MONITOR, NODEMANAGER etc.. in a single REST
call to the newly added hosts.
Explaining with a small example of that REST call body is much appreciated.
Thanks,
Pratik
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