question Re: API + restart the services that restart is required in Support Questions

API + restart the services that restart is required

mike_bronson7 — Fri, 18 Aug 2017 00:41:53 GMT

after adding new parameter and value to the ambari cluster , we need to restart the service to take affect

from ambari GUI restart the service is required , and we can see that because restart button is colored with orange

so my question is

we need API command that restart only the services that restart is required?

Re: API + restart the services that restart is required

jsensharma — Fri, 18 Aug 2017 00:48:58 GMT

@uri ben-ari

Please try this:

# curl -iv -u admin:admin -H "X-Requested-By: ambari" -X POST  -d '{"RequestInfo":{"command":"RESTART","context":"Restart all required services","operation_level":"host_component"},"Requests/resource_filters":[{"hosts_predicate":"HostRoles/stale_configs=true"}]}' http://$AMBARI_SERVER:8080/api/v1/clusters/$CLUSTER_NAME/reques

Please replace the $AMBARI_SERVER with ambari FQDN

$CLUSTER_NAME = clustername.

Re: API + restart the services that restart is required

mike_bronson7 — Fri, 18 Aug 2017 00:51:43 GMT

thank you very much - I will test it on my ambari cluster

Re: API + restart the services that restart is required

mike_bronson7 — Fri, 18 Aug 2017 00:53:00 GMT

btw - regarding my previews question , how to find the config type for the parameter , can we talk about this ?

Re: API + restart the services that restart is required

jsensharma — Fri, 18 Aug 2017 00:59:29 GMT

@uri ben-ari

I just responded there: https://community.hortonworks.com/questions/121757/how-to-find-config-type-by-api-command-1.html

Re: API + restart the services that restart is required

mike_bronson7 — Fri, 18 Aug 2017 01:06:44 GMT

from some reason I get - HTTP/1.1 404 Not Found

Re: API + restart the services that restart is required

mike_bronson7 — Fri, 18 Aug 2017 01:08:21 GMT

I change the hostname and the cluster name maybe something else in the syntax

Re: API + restart the services that restart is required

jsensharma — Fri, 18 Aug 2017 01:09:50 GMT

@uri ben-ari

The "Restart all required services" feature is available from ambari 2.5 onwards only.

If you are getting 404 in Ambari 2.5 then you might be doing something wrong in the URL.

In my case i missed "t" at the end of th URL. The "request" became "reques" Please correct it as following:

# curl -iv -u admin:admin -H "X-Requested-By: ambari" -X POST  -d '{"RequestInfo":{"command":"RESTART","context":"Restart all required services","operation_level":"host_component"},"Requests/resource_filters":[{"hosts_predicate":"HostRoles/stale_configs=true"}]}' http://$AMBARI_SERVER:8080/api/v1/clusters/$CLUSTER_NAME/request

Re: API + restart the services that restart is required

mike_bronson7 — Fri, 18 Aug 2017 01:15:14 GMT

* Trying 109.164.35.62... * Connected to master.urns.com (109.164.35.62) port 8080 (#0) * Server auth using Basic with user 'admin' > POST /api/v1/clusters/HDP01/request HTTP/1.1 > Authorization: Basic YWRtaW46YWRtaW4= > User-Agent: curl/7.29.0 > Host: master.urns.com:8080 > Accept: */* > X-Requested-By: ambari > Content-Length: 195 > Content-Type: application/x-www-form-urlencoded > * upload completely sent off: 195 out of 195 bytes < HTTP/1.1 404 Not Found HTTP/1.1 404 Not Found < X-Frame-Options: DENY X-Frame-Options: DENY < X-XSS-Protection: 1; mode=block X-XSS-Protection: 1; mode=block < X-Content-Type-Options: nosniff X-Content-Type-Options: nosniff < Cache-Control: no-store Cache-Control: no-store < Pragma: no-cache Pragma: no-cache < Set-Cookie: AMBARISESSIONID=1kmyjqsidore28zeh3nxu88c5;Path=/;HttpOnly Set-Cookie: AMBARISESSIONID=1kmyjqsidore28zeh3nxu88c5;Path=/;HttpOnly < Expires: Thu, 01 Jan 1970 00:00:00 GMT Expires: Thu, 01 Jan 1970 00:00:00 GMT < User: admin User: admin < Content-Length: 0 Content-Length: 0 < Server: Jetty(8.1.19.v20160209) Server: Jetty(8.1.19.v20160209)

Re: API + restart the services that restart is required

mike_bronson7 — Fri, 18 Aug 2017 01:21:41 GMT

as you can see from the log hostname is ok ans the cluster name

Re: API + restart the services that restart is required

mike_bronson7 — Fri, 18 Aug 2017 01:26:37 GMT

I test it again , hostname for sure is ok and the cluster name is correct , what chuld be the problem

Re: API + restart the services that restart is required

jsensharma — Fri, 18 Aug 2017 01:28:09 GMT

@uri ben-ari

Please pardon me 😞

The URL should end with "requests" instead of "request"

Example:

 #  curl  -u admin:admin -H "X-Requested-By: ambari" -X POST  -d '{"RequestInfo":{"command":"RESTART","context":"Restart all required services","operation_level":"host_component"},"Requests/resource_filters":[{"hosts_predicate":"HostRoles/stale_configs=true"}]}' http://amb25101.example.com:8080/api/v1/clusters/plain_ambari/requests

{
  "href" : "http://amb25101.example.com:8080/api/v1/clusters/plain_ambari/requests/132",
  "Requests" : {
    "id" : 132,
    "status" : "Accepted"
  }
}

Re: API + restart the services that restart is required

mike_bronson7 — Fri, 18 Aug 2017 01:31:25 GMT

now command its works , but in the ambari cluster the service hive and the service spark2 still have the button restart in orange ( so seems command works on linux ) but not refreshed the service , the target of my quastion was to restart/refreshed all services that need to be restart

Re: API + restart the services that restart is required

jsensharma — Fri, 18 Aug 2017 01:32:56 GMT

@uri ben-ari

Please check the progress of the request ID ... to see if it is completed or stuck:?

Example:

curl  -u admin:admin -H "X-Requested-By: ambari" -X GET http://amb25101.example.com:8080/api/v1/clusters/plain_ambari/requests/132

Re: API + restart the services that restart is required

mike_bronson7 — Fri, 18 Aug 2017 01:43:11 GMT

every thing is ok now thx