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Posted to dev@ambari.apache.org by "Jiang, Ruhua" <rj...@akamai.com> on 2016/03/25 19:58:25 UTC
HDFS depends on Zookeeper in install web UI
Anyone from dev mail list can help ? Thanks
Ruhua
From: Ruhua Jiang <rj...@akamai.com>>
Date: Friday, March 25, 2016 at 11:59 AM
To: "user@ambari.apache.org<ma...@ambari.apache.org>" <us...@ambari.apache.org>>
Subject: HDFS depends on Zookeeper in install web UI
Hi all,
I am experimenting Ambari. I just want to install HDFS for now, however, when I click choosing HDFS service, the UI reminds me “zookeeper needed” and then zookeeper is automatically added . HDFS its alone should not depends zookeeper right? I have already have a zookeeper cluster and I don’t need to deploy then anymore. Same thing happens for kafka.
Question 1:
Which part of the code related to this “dependency enforcement”? I can’t find it in “ ambari-server/var/lib/ambari-server/resources/stacks/HDP/2.4/services/metainfo.xml” and “ambari-server/var/lib/ambari-server/resources/stacks/ambari-server/resources/stacks/stack_advisor.py”. Anyone can help point it out?
Question 2:
I understand the UI calls the REST api. So is “dependency enforcement” a UI specific thing (some magic javascript sitting somewhere ) or I can get around with calling blueprints REST API?
Thanks :)
Ruhua Jiang
Re: HDFS depends on Zookeeper in install web UI
Posted by "Jiang, Ruhua" <rj...@akamai.com>.
Thanks Alexander!
From: Alexander Denissov <ad...@pivotal.io>>
Reply-To: "dev@ambari.apache.org<ma...@ambari.apache.org>" <de...@ambari.apache.org>>
Date: Friday, March 25, 2016 at 4:41 PM
To: "dev@ambari.apache.org<ma...@ambari.apache.org>" <de...@ambari.apache.org>>
Subject: Re: HDFS depends on Zookeeper in install web UI
Ruhua,
The dependency between HDFS and ZOOKEEPER is specified at the service
definition level in metainfo.xml for HDFS:
https://github.com/apache/ambari/blob/trunk/ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/metainfo.xml#L233
<requiredServices>
<service>ZOOKEEPER</service>
</requiredServices>
--
Thanks,
Alexander Denissov
On Fri, Mar 25, 2016 at 11:58 AM, Jiang, Ruhua <rj...@akamai.com>> wrote:
Anyone from dev mail list can help ? Thanks
Ruhua
From: Ruhua Jiang <rj...@akamai.com>>
Date: Friday, March 25, 2016 at 11:59 AM
To: "user@ambari.apache.org<ma...@ambari.apache.org>" <
user@ambari.apache.org<ma...@ambari.apache.org>>
Subject: HDFS depends on Zookeeper in install web UI
Hi all,
I am experimenting Ambari. I just want to install HDFS for now, however,
when I click choosing HDFS service, the UI reminds me “zookeeper needed”
and then zookeeper is automatically added . HDFS its alone should not
depends zookeeper right? I have already have a zookeeper cluster and I
don’t need to deploy then anymore. Same thing happens for kafka.
Question 1:
Which part of the code related to this “dependency enforcement”? I can’t
find it in “
ambari-server/var/lib/ambari-server/resources/stacks/HDP/2.4/services/metainfo.xml”
and
“ambari-server/var/lib/ambari-server/resources/stacks/ambari-server/resources/stacks/stack_advisor.py”.
Anyone can help point it out?
Question 2:
I understand the UI calls the REST api. So is “dependency enforcement” a
UI specific thing (some magic javascript sitting somewhere ) or I can get
around with calling blueprints REST API?
Thanks :)
Ruhua Jiang
Re: HDFS depends on Zookeeper in install web UI
Posted by Alexander Denissov <ad...@pivotal.io>.
Ruhua,
The dependency between HDFS and ZOOKEEPER is specified at the service
definition level in metainfo.xml for HDFS:
https://github.com/apache/ambari/blob/trunk/ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/metainfo.xml#L233
<requiredServices>
<service>ZOOKEEPER</service>
</requiredServices>
--
Thanks,
Alexander Denissov
On Fri, Mar 25, 2016 at 11:58 AM, Jiang, Ruhua <rj...@akamai.com> wrote:
> Anyone from dev mail list can help ? Thanks
>
> Ruhua
>
> From: Ruhua Jiang <rj...@akamai.com>>
> Date: Friday, March 25, 2016 at 11:59 AM
> To: "user@ambari.apache.org<ma...@ambari.apache.org>" <
> user@ambari.apache.org<ma...@ambari.apache.org>>
> Subject: HDFS depends on Zookeeper in install web UI
>
> Hi all,
>
> I am experimenting Ambari. I just want to install HDFS for now, however,
> when I click choosing HDFS service, the UI reminds me “zookeeper needed”
> and then zookeeper is automatically added . HDFS its alone should not
> depends zookeeper right? I have already have a zookeeper cluster and I
> don’t need to deploy then anymore. Same thing happens for kafka.
>
> Question 1:
> Which part of the code related to this “dependency enforcement”? I can’t
> find it in “
> ambari-server/var/lib/ambari-server/resources/stacks/HDP/2.4/services/metainfo.xml”
> and
> “ambari-server/var/lib/ambari-server/resources/stacks/ambari-server/resources/stacks/stack_advisor.py”.
> Anyone can help point it out?
>
> Question 2:
> I understand the UI calls the REST api. So is “dependency enforcement” a
> UI specific thing (some magic javascript sitting somewhere ) or I can get
> around with calling blueprints REST API?
>
>
> Thanks :)
>
> Ruhua Jiang
>