question Custom service check process status failed(show red icon) on ambari 2.2.1 and HDP 2.4 in Archives of Support Questions (Read Only)

Custom service check process status failed(show red icon) on ambari 2.2.1 and HDP 2.4

ianli — Mon, 04 Jul 2016 14:10:31 GMT

I refer to Defining a Custom Stack and Services. (https://cwiki.apache.org/confluence/display/AMBARI/Defining+a+Custom+Stack+and+Services)

My custom service directory structure is as follows:

SAMPLESRV/
├── configuration
│   └── test-config.xml
├── metainfo.xml
└── package
    ├── archive.zip
    └── scripts
        ├── master.py
        ├── sample_client.py
        └── slave.py

When I add check_process_status method in master.py and restart ambari server, the service status will show red icon. But the service is running. add-check-process-status.png add-check-process-status2.png

  def status(self, env):
    print 'Status of the Sample Srv Master';
    my_test_pid = "/var/run/mytest/mytest_server.pid"
    check_process_status(my_test_pid)

When I comment check_process_status method in master.py and restart ambari server, the service status will show green icon.

Do I miss something?

About my source code of custom service , please refer to attachment file my-custom-service.tar.gz

Thanks.

Re: Custom service check process status failed(show red icon) on ambari 2.2.1 and HDP 2.4

ssanku — Wed, 06 Jul 2016 08:23:50 GMT

Hi @Ian Li,

I followed the steps from https://cwiki.apache.org/confluence/display/AMBARI/Defining+a+Custom+Stack+and+Services,

I was able to launch the service and it shows green . Please find the attached.

My assumption is within the documentation I see the steps for applicable for HDP 2.0.6 -> 2.1.

Can you try the steps in

/var/lib/ambari-server/resources/stacks/HDP/2.4/services

new-sample-service.png

screenshot1.png

Hope that helps. Let me know in case of issues.

Thanks,

Sujitha

Re: Custom service check process status failed(show red icon) on ambari 2.2.1 and HDP 2.4

ianli — Wed, 06 Jul 2016 10:42:10 GMT

Hi @sujitha sanku,

Thank you for the information.

I use Hortonworks Sandbox HDP 2.4 and try the steps in "/var/lib/ambari-server/resources/stacks/HDP/2.4/services"

The service status shows green. When I stop service, it will show red a while and turn green. It doesn't make sense.

After I add check_process_status(my_test_pid) in status method, the service status show red.

I have already refer to some information. For example: How to deploy Zeppelin(http://hortonworks.com/apache/zeppelin/#section_3) and Jupyter(https://github.com/randerzander/jupyter-service) on ambari

But I still don't know why the check_process_status doesn't work.

Thanks.

Re: Custom service check process status failed(show red icon) on ambari 2.2.1 and HDP 2.4

ssanku — Thu, 07 Jul 2016 04:05:25 GMT

Hi @Ian Li,

I was able to get this to stop and start by adding these lines in the master.py and slave.py

I added a dummy PID, Since we have not installed a real service, there is no PID file created by it.Therefore we are going to artificially create the PID,remove the PIDand check the process status of the dummy pid.

screen-shot-2016-07-06-at-20304-pm.png

screen-shot-2016-07-06-at-20322-pm.png

screen-shot-2016-07-06-at-20340-pm.png

Hope this helps. Let me know in case of any other issues.

Thanks,

Sujitha

Re: Custom service check process status failed(show red icon) on ambari 2.2.1 and HDP 2.4

ssanku — Wed, 13 Jul 2016 00:54:13 GMT

Hi @Ian Li,

If this issue was resolved can you pick the best answer and we can think this as resolved.

Thanks,

Sujitha

Re: Custom service check process status failed(show red icon) on ambari 2.2.1 and HDP 2.4

ianli — Thu, 14 Jul 2016 08:06:32 GMT

Hi @sujitha sanku,

It's working.

Thank you again for everything you have done!

Thanks.