ambari-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Bhuvnesh Chaudhary <bchaudh...@pivotal.io>
Subject Re: Ambari Stacks: Start of service requires another service restart
Date Thu, 11 Feb 2016 21:38:27 GMT
Just to add:
In case all the services are being installed together, in that case yes RCO
will help.

Thanks,
Bhuvnesh Chaudhary
Email: bchau <bchaudhary@gopivotal.com>dhary@pivotal.io
Desk: +1-650-846-1696 | Mobile: +1-973-906-6976

On Thu, Feb 11, 2016 at 1:36 PM, Bhuvnesh Chaudhary <bchaudhary@pivotal.io>
wrote:

> @Amanda,
> I believe currently, there is no such flag which you could set which
> allows to restart already installed services during install of service x.
> Technically, you can run APIs to stop and start other services from
> backend during install of service x but that might not be a good idea.
> It might be a good feature to include such dependencies and make it
> pluggable.
> Just curious: What changes after the restart of hbase and zookeeper which
> lets your service run  ?
>
> But yes, let's hear from other folks as well if there is any such feature,
> i might not be aware.
>
> @Alejandro - Will RCO work if you are adding service X which depends on
> restart of already installed service say Y. If X service is being added,
> Ambari will schedule Install -> Start -> Service check only for Service X ?
> Correct me if wrong.
>
>
>
>
> Thanks,
> Bhuvnesh Chaudhary
> Email: bchau <bchaudhary@gopivotal.com>dhary@pivotal.io
> Desk: +1-650-846-1696 | Mobile: +1-973-906-6976
>
> On Thu, Feb 11, 2016 at 1:25 PM, Alejandro Fernandez <
> afernandez@hortonworks.com> wrote:
>
>> Take a look at role_command_order.json
>>
>> It is specific to the stack, and it inherits from earlier stacks. E.g.,
>> ambari-server/src/main/resources/stacks/HDP/2.0.6/role_command_order.json
>> ambari-server/src/main/resources/stacks/HDP/2.1/role_command_order.json
>> ambari-server/src/main/resources/stacks/HDP/2.2/role_command_order.json
>> ambari-server/src/main/resources/stacks/HDP/2.3/role_command_order.json
>>
>> Thanks,
>> Alejandro
>>
>> From: Amanda Moran <amanda.moran@esgyn.com>
>> Reply-To: "user@ambari.apache.org" <user@ambari.apache.org>
>> Date: Thursday, February 11, 2016 at 1:19 PM
>> To: "user@ambari.apache.org" <user@ambari.apache.org>
>> Subject: Ambari Stacks: Start of service requires another service restart
>>
>> Hi there All-
>>
>> I am currently working on adding a service via ambari stacks.
>>
>> My service requires another service (hbase and zookeeper) to be restarted
>>  before my service will start.
>>
>> How can I do this?
>>
>> Note: Right now, my service installs fine but then fails the automatic
>> start since HBase has not been restarted. I then restart HBase and I am
>> able to start my service... I would like it so that my service doesn't
>> "fail" the first time :)
>>
>> Thanks a bunch! I looked all over for this answer.. and couldn't seem to
>> find.
>> --
>> Thanks,
>>
>> Amanda Moran
>>
>
>

Mime
View raw message