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From: Krzysztof Adamski <adamskikrzysiek@gmail.com>
Date: Tue, 07 Apr 2015 07:15:37 +0000
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 <CAKv7RtFVakX7=7TGZp7wEeb3dtLZx7essJkaWMgQ3VNzQ95GXA@mail.gmail.com>
Subject: Start/stop all services programmatically
To: "user@ambari.apache.org" <user@ambari.apache.org>
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Hello,

I am busy implementing a manual job to stop all hosts services via script
before rebooting the OS. The examples I found in wiki are per service or
component.

1. Is there any way to invoke the stop/start for all hosts components just
like from a web interface?
2. How ambari determines the proper order for the services to start/stop
e.g. first stop hiveserver before stopping mysql etc.

curl -s --user admin:admin -H "X-Requested-By: ambari" -X GET "
http://ambari:8080/api/v1/clusters/ing_hdp/components/?
ServiceComponentInfo/category.in(SLAVE,MASTER)&host_
components/HostRoles/host_name=3Dhost1&fields=3Dhost_components/HostRoles/
component_name,host_components/HostRoles/state" | jq -r
'[[.items[].host_components[].HostRoles.component_name]]|tostring' | sed -r
's/[\["]//g' | sed -r 's/[]]//g'

  function stop(){

curl -u admin:admin -i -H 'X-Requested-By: ambari' -X PUT -d
'{"RequestInfo": {"context" :"Stop =E2=80=98"$1"=E2=80=99 via REST"}, "Body=
": {"HostRoles":
{"state": "INSTALLED"}}}' http://ambari:8080/api/v1/
clusters/ing_hdp/hosts/host1/host_components/$1

}

Thanks for any guide.

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<div dir=3D"ltr"><div class=3D"gmail_quote"><div dir=3D"ltr"><div class=3D"=
gmail_quote"><div dir=3D"ltr">Hello,<div><br></div><div>I am busy implement=
ing a manual job to stop all hosts services via script before rebooting the=
 OS. The examples I found in wiki are per service or component.</div><div><=
br></div><div>1. Is there any way to invoke the stop/start for all hosts co=
mponents just like from a web interface?</div><div>2. How ambari determines=
 the proper order for the services to start/stop e.g. first stop hiveserver=
 before stopping mysql etc.</div><div><br></div><div><p class=3D"MsoNormal"=
>curl -s --user admin:admin -H &quot;X-Requested-By: ambari&quot; -X GET &q=
uot;<a href=3D"http://ambari:8080/api/v1/clusters/ing_hdp/components/?Servi=
ceComponentInfo/category.in(SLAVE,MASTER)&amp;host_components/HostRoles/hos=
t_name=3Dhost1&amp;fields=3Dhost_components/HostRoles/component_name,host_c=
omponents/HostRoles/state" target=3D"_blank">http://ambari:8080/api/v1/<u><=
/u>clusters/ing_hdp/components/?<u></u>ServiceComponentInfo/category.<u></u=
>in(SLAVE,MASTER)&amp;host_<u></u>components/HostRoles/host_<u></u>name=3Dh=
ost1&amp;fields=3Dhost_<u></u>components/HostRoles/<u></u>component_name,ho=
st_<u></u>components/HostRoles/state</a>&quot; | jq -r &#39;[[.items[].host=
_components[].<u></u>HostRoles.component_name]]|<u></u>tostring&#39; | sed =
-r &#39;s/[\[&quot;]//g&#39; | sed -r &#39;s/[]]//g&#39;</p><p class=3D"Mso=
Normal">=C2=A0 function stop(){</p><p class=3D"MsoNormal">curl -u admin:adm=
in -i -H &#39;X-Requested-By: ambari&#39; -X PUT -d &#39;{&quot;RequestInfo=
&quot;: {&quot;context&quot; :&quot;Stop =E2=80=98&quot;$1&quot;=E2=80=99 v=
ia REST&quot;}, &quot;Body&quot;: {&quot;HostRoles&quot;: {&quot;state&quot=
;: &quot;INSTALLED&quot;}}}&#39; <a href=3D"http://ambari:8080/api/v1/clust=
ers/ing_hdp/hosts/host1/host_components/$1" target=3D"_blank">http://ambari=
:8080/api/v1/<u></u>clusters/ing_hdp/hosts/host1/<u></u>host_components/$1<=
/a></p><p class=3D"MsoNormal">}</p><p class=3D"MsoNormal">Thanks for any gu=
ide.</p></div></div></div></div></div></div>

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