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From Yingyi Bu <buyin...@gmail.com>
Subject Re: When is it appropirate to add reserved words to the AQL/SQL++ Grammar?
Date Thu, 13 Apr 2017 01:18:13 GMT
+1 for HTTP API.
The end point can be easily removed from a real deployment by using a
config parameter.

Best,
Yingyi

On Wed, Apr 12, 2017 at 6:12 PM, Till Westmann <tillw@apache.org> wrote:

> Coming back to the question in the subject: If we need such functionality
> e.g. for testing of performance measurements, how should we expose it?
> Should we
> - extend the language with new keywords or
> - introduce on keyword for this that is followed by some parameters or
> - expose new HTTP APIs or
> - …
>
> Thoughts?
>
> Cheers,
> Till
>
>
> On 12 Apr 2017, at 15:11, Ian Maxon wrote:
>
> Yes, more or less. I'm not sure that I would force the buffer cache,
>> but at least I want all of the "object" representations outside of
>> that to have vanished such that their state must be regenerated from
>> the at-rest format.
>>
>> On Wed, Apr 12, 2017 at 2:41 PM, Mike Carey <dtabass@gmail.com> wrote:
>>
>>> So you want to basically quiesce a dataset "all the way" - so that it's
>>> not
>>> open at all, and perhaps so that the buffer pool also has none of its
>>> pages
>>> resident?
>>>
>>>
>>>
>>> On 4/12/17 2:26 PM, Ian Maxon wrote:
>>>
>>>>
>>>> That's a little different than from what I'd like to do. Basically I
>>>> want to evict the dataset entirely. My alterior motive here is to test
>>>> the correctness of persisted storage artifacts as right now in many
>>>> cases this is not covered. It has been a recurring theme in many bugs
>>>> that there is some stored artifact on disk that is written incorrectly
>>>> but never read during tests, because often the tests simply never
>>>> encounter the path in which this would occur (restart,eviction, etc.)
>>>>
>>>> On Wed, Apr 12, 2017 at 1:46 PM, Ildar Absalyamov
>>>> <ildar.absalyamov@gmail.com> wrote:
>>>>
>>>>>
>>>>> Ian,
>>>>>
>>>>> There is an existing API, which does exactly that.
>>>>> https://github.com/apache/asterixdb/blob/master/asterixdb/
>>>>> asterix-app/src/main/java/org/apache/asterix/api/http/
>>>>> server/ConnectorApiServlet.java#L123
>>>>> <https://github.com/apache/asterixdb/blob/master/asterixdb/
>>>>> asterix-app/src/main/java/org/apache/asterix/api/http/
>>>>> server/ConnectorApiServlet.java#L123>
>>>>> I have been successfully using it in my experiments.
>>>>>
>>>>> On Apr 12, 2017, at 13:41, Ian Maxon <imaxon@uci.edu> wrote:
>>>>>>
>>>>>> Hey all,
>>>>>> I was working on a patch that would add a 'flush dataset' DDL command
>>>>>> (mainly for testing), and of course this would require adding 'flush'
>>>>>> as a new reserved word. What is the consensus on when this would
be
>>>>>> permitted at this point? There are other ways to do this, of course,
I
>>>>>> could expose this functionality through a separate API, and I am
not
>>>>>> really partial to one solution or the other.
>>>>>>
>>>>>> Thanks,
>>>>>> - Ian
>>>>>>
>>>>>
>>>>> Best regards,
>>>>> Ildar
>>>>>
>>>>>
>>>

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