problem when building a charm for giraph

[Konstantinos Tsakalozos]

Hi Panagiotis,

Merlijn is right, the output of the smoke-test script is available in the
juju debug logs (juju debug-log). Here is what I got when running your
smoke-test: http://pastebin.ubuntu.com/23516167/ (multiple SLF4J bindings)
It seems the slf4j-log4j12-1.7.5.jar jar from Giraph is slightly older that
the slf4j-log4j12-1.7.10.jar from Hadoop.

In order to add some output to the smoke-test action you could call "action
set" and/or "action fail" as we do here
 https://github.com/panagiotisl/bigtop/blob/master/bigtop-packages/src/charm/hbase/layer-hbase/actions/smoke-test
<https://github.com/panagiotisl/bigtop/blob/master/bigtop-packages/src/charm/hbase/layer-hbase/actions/smoke-test>

Thank you for your work,
Konstantinos


On Tue, Nov 22, 2016 at 11:06 AM, Merlijn Sebrechts <
merlijn.sebrechts at gmail.com> wrote:

> Hi Panagiotis Liakos
>
>
> Cool that you're charming Giraph! Feel free to let me know when you have a
> working prototype, some of my colleagues are interested in using Giraph.
>
> Now for your question; tests and actions are two different things.
>
>    - Actions are similar to hooks; they run on the charm unit itself. The mahout
>    smoke-test
>    <https://github.com/apache/bigtop/blob/master/bigtop-packages/src/charm/mahout/layer-mahout/actions/smoke-test>
>    is an action. You run them using `run-action`, you can* debug them
>    using `juju debug-hooks`* and all output gets logged by juju (you can
>    see the output in *`juju debug-log`*). More info on actions:
>    https://jujucharms.com/docs/stable/actions
>    <https://jujucharms.com/docs/stable/actions>
>    - Tests are scripts that run on your own machine that deploy and test
>    charms. You run them using bundletester. More info on tests:
>    https://jujucharms.com/docs/2.0/developer-testing
>    <https://jujucharms.com/docs/2.0/developer-testing>
>
> So if you want to alter the `smoke-test` action; you should alter this
> file: https://github.com/apache/bigtop/blob/master/
> bigtop-packages/src/charm/mahout/layer-mahout/actions/smoke-test
>
> The actual tests of the Mahout Charm use the smoke-test action to verify
> the deployment. That is what you see at line 52:
> https://github.com/apache/bigtop/blob/master/bigtop-
> packages/src/charm/mahout/layer-mahout/tests/01-mahout-test.py#L52
> `self.mahout.run_action('smoke-test')` calls `juju run-action` in the
> background.
>
> Does that help you a bit?
>
>
>
> Kind regards
> Merlijn
>
> 2016-11-22 9:42 GMT+01:00 Panagiotis Liakos <p.liakos at di.uoa.gr>:
>
>> Hi all,
>>
>> I am trying to build a charm for Apache Giraph. I have used the mahout
>> charm ( https://github.com/apache/bigtop/tree/master/bigtop-packages
>> /src/charm/mahout
>> ) and made the necessary changes to deploy giraph instead of mahout.
>>
>> Deployment seems to work fine and I am able to submit giraph jobs
>> through an ssh connection.
>>
>> Now I am trying to create a test similar to the smoke-test of the
>> mahout charm ( https://github.com/apache/bigt
>> op/blob/master/bigtop-packages/src/charm/mahout/layer-
>> mahout/actions/smoke-test
>> )
>>
>> I have successfully run the script that I have included in my
>> smoke-test through ssh and I
>> would expect that the test would also execute without errors.
>> However, I am not at all familiar with the 'run-action' process of
>> juju and I have no idea how I should alter the following file:
>> https://github.com/apache/bigtop/blob/master/bigtop-packages
>> /src/charm/mahout/layer-mahout/tests/01-mahout-test.py
>>
>> In particular, I am puzzled by the way the result status is set in
>> this example. Simply changing the references of mahout to giraph does
>> not seem to work. You can see my file here:
>> https://github.com/panagiotisl/bigtop/blob/master/bigtop-
>> packages/src/charm/giraph/layer-giraph/tests/01-giraph-test.py
>>
>> When I execute show-action-output I receive very limited information:
>> message: exit status 1
>> status: failed
>> timing:
>>   completed: 2016-11-21 15:48:01 +0000 UTC
>>   enqueued: 2016-11-21 15:47:38 +0000 UTC
>>   started: 2016-11-21 15:47:40 +0000 UTC
>>
>> Is there a way I can view the full output of the 'smoke-test' execution?
>>
>> Thank you,
>> Panagiotis Liakos
>>
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