I have a patch available for the voted version at
https://issues.apache.org/jira/browse/HIVE-19077. Let me know what you
think.

On 27 April 2018 at 15:55, Adam Szita <sz...@cloudera.com> wrote:

> Thanks to all for the responses.
> As I see it, option 3 is the winning one. Next week I'm going start
> working on this one then (unless any objections of course).
>
> Adam
>
> On 26 April 2018 at 05:48, Deepak Jaiswal <djais...@hortonworks.com>
> wrote:
>
>> +1 for option 3. Thanks Adam for taking this up again.
>>
>> Regards,
>> Deepak
>>
>> On 4/25/18, 4:54 PM, "Thejas Nair" <thejas.n...@gmail.com> wrote:
>>
>>     Option 3 seems reasonable. I believe that used to be the state a while
>>     back (maybe 12 months back or so).
>>     When 2nd ptest for same jira runs, it checks if the latest patch has
>>     already been run.
>>
>>
>>     On Wed, Apr 25, 2018 at 7:37 AM, Peter Vary <pv...@cloudera.com>
>> wrote:
>>     > I would vote for version 3. It would solve the big patch problem,
>> and removes the unnecessary test runs too.
>>     >
>>     > Thanks,
>>     > Peter
>>     >
>>     >> On Apr 25, 2018, at 11:01 AM, Adam Szita <sz...@cloudera.com>
>> wrote:
>>     >>
>>     >> Hi all,
>>     >>
>>     >> I had a patch (HIVE-19077) committed with the original aim being
>> the
>>     >> prevention of wasting resources when running ptest on the same
>> patch
>>     >> multiple times:
>>     >> It is supposed to manage scenarios where a developer uploads
>>     >> HIVE-XYZ.1.patch, that gets queued in jenkins, then before
>> execution
>>     >> HIVE-XYZ.2.patch (for the same jira) is uploaded and that gets
>> queued also.
>>     >> When the first patch starts to execute ptest will see that patch2
>> is the
>>     >> latest patch and will use that. After some time the second queued
>> job will
>>     >> also run on this very same patch.
>>     >> This is just pointless and causes long queues to progress slowly.
>>     >>
>>     >> My idea was to remove these duplicates from the queue where I'd
>> only keep
>>     >> the latest queued element if I see more queued entries for the
>> same jira
>>     >> number. It's like when you go grocery shopping and you're already
>> in line
>>     >> at cashier but you realise you also need e.g. milk. You go grab it
>> and join
>>     >> the END of the queue. So I believe it's a fair punishment for
>> losing one's
>>     >> spot in the queue for making amends on their patch.
>>     >>
>>     >> That said Deepak made me realise that for big patches this will be
>> very
>>     >> cumbersome due to the need of constant rebasing to avoid conflicts
>> on patch
>>     >> application.
>>     >> I have three proposals now:
>>     >>
>>     >> 1: Leave this as it currently is (with HIVE-19077 committed) -
>> *only the
>>     >> latest queued job will run of the same jira*
>>     >> pros: no wasting resources to run the same patches more times,
>> 'scheduling'
>>     >> is fair: if you amend you're patch you may loose your original
>> spot in the
>>     >> queue
>>     >> cons: big patches that are prone to conflicts will be hard to get
>> executed
>>     >> in ptest, devs will have to wait more time for their ptest results
>> if they
>>     >> amend their patches
>>     >>
>>     >> 2: *Add a safety switch* to this queue checking feature (currently
>> proposed
>>     >> in HIVE-19077), deduplication can be switch off on request
>>     >> pros: same as 1st, + ability to have more control on this
>> mechanism i.e.
>>     >> turn it off for big/urgent patches
>>     >> cons: big patches that use the swich might still waste resources,
>> also devs
>>     >> might use safety switch inappropriately for their own evil benefit
>> :)
>>     >>
>>     >> 3: Deduplication the other way around - *only the first queued job
>> will run
>>     >> of the same jira*, ptest server will keep record of patch names
>> and won't
>>     >> execute a patch with a seen name and jira number again
>>     >> pros: same patches will not be executed more times accidentally,
>> big
>>     >> patches won't be a problem either, devs will get their ptest
>> result back
>>     >> earlier even if more jobs are triggered for same jira/patch name
>>     >> cons: scheduling is less fair: devs can reserve their spots in the
>> queue
>>     >>
>>     >>
>>     >> (0: restore original: I'm strongly against this, ptest queue is
>> already too
>>     >> big as it is, we have to at least try and decrease its size by
>>     >> deduplicating jiras in it)
>>     >>
>>     >> I'm personally fine with any of the 1,2,3 methods listed above,
>> with my
>>     >> favourites being 2 and 3.
>>     >> Let me know which one you think is the right path to go down on.
>>     >>
>>     >> Thanks,
>>     >> Adam
>>     >>
>>     >> On 20 April 2018 at 20:14, Eugene Koifman <
>> ekoif...@hortonworks.com> wrote:
>>     >>
>>     >>> Would it be possible to add patch name validation when it gets
>> added to
>>     >>> the queue?
>>     >>> Currently I think it fails when the bot gets to the patch if it’s
>> not
>>     >>> named correctly.
>>     >>> More  common for branch patches
>>     >>>
>>     >>> On 4/20/18, 8:20 AM, "Zoltan Haindrich" <k...@rxd.hu> wrote:
>>     >>>
>>     >>>    Hello,
>>     >>>
>>     >>>    Some time ago the ptest queue worked the following way:
>>     >>>
>>     >>>    * for some reason ATTACHMENT_ID was not set by the upstream
>> jira
>>     >>> scanner
>>     >>>    tool; this  triggered a feature in Jenkins: if for the same
>> ticket
>>     >>>    mutliple patches were uploaded; they didn't triggered new runs
>>     >>> (because
>>     >>>    the parameters were the same)
>>     >>>    * this have become fixed at some point...around that time I
>> started
>>     >>>    getting multiple ptest executions for the same ticket -
>> because I've
>>     >>>    fixed a minor typo after submitting the first version of my
>> patch...
>>     >>>    * currently we also have a jenkins queue reader inside the
>> ptest
>>     >>>    job...which checks if the ticket is in the queue right now;
>> and if is
>>     >>>    it, it just exits...this logic kinda restores the earlier
>> behaviour;
>>     >>>    with the exception that if I upload a patch every day and the
>> queue is
>>     >>>    longer that 1day (like now); I will never get a ptest run :D
>>     >>>    * ...now here I come! I've just removed my patch from
>> yesterday;
>>     >>> because
>>     >>>    I want a ptest run with my newest patch; and the only way to
>> force the
>>     >>>    above logic to do that....is by removing that attachment..
>>     >>>
>>     >>>
>>     >>>    So...could we go back to the state when the attachment_id was
>> ignored?
>>     >>>    I would recommend to remove the ATTACHMENT_ID from the jenkins
>>     >>> parameters...
>>     >>>
>>     >>>    cheers,
>>     >>>    Zoltan
>>     >>>
>>     >>>    JenkinsQueueUtil.java:
>>     >>>    https://github.com/apache/hive/blob/f8a671d8cfe8a26d1d12c51f
>> 93207e
>>     >>> c92577c796/testutils/ptest2/src/main/java/org/apache/hive/
>>     >>> ptest/api/client/JenkinsQueueUtil.java#L82
>>     >>>
>>     >>>
>>     >>>
>>     >>>
>>     >
>>
>>
>>
>>
>

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