[PATCH] Make LNT compatible with PostgreSQL

[Daniel Dunbar]

Here are my thoughts on what we should do:

1. Before doing anything substantial, I want to get Chris' patches to rerun
tests with significant changes (~= a form of adaptive sampling) landed. I
have high hopes for that approach in helping making results more reliable
and actionable.

2. In the past, when bringing up new databases I have reimported some
historical data using the JSON files that the server archives (as Chris
noted). I could do that again here if useful.

3. I'm not sure exactly when I will have time to bring up a PostgreSQL
instance on llvm.org. I would really love to move to a PaaS solution like
Heroku to make managing this kind of thing easier (and easier to
collaborate on), but we might not yet have the organizational clout for
that.

4. Last I looked, the llvm.org instance mostly had polly related bots. It
would be nice to start off with a more standard set of bots trying to cover
the diversity of platforms, in the hopes of making the results more
interesting to the larger community.

 - Daniel



On Mon, Jul 28, 2014 at 10:59 PM, Tobias Grosser <tobias at grosser.es> wrote:

> On 29/07/2014 00:47, Yi Kong wrote:
>
>> On 28 July 2014 22:19, Tobias Grosser <tobias at grosser.es> wrote:
>>
>>> On 28/07/2014 19:45, Yi Kong wrote:
>>>
>>>>
>>>> The server is not stable yet, we will lose a lot of data. Also, not all
>>>> the
>>>> builders submit results to LNT.
>>>>
>>>
>>>
>>> I don't understand this? Are you saying the LNT server is not yet
>>> stable? I
>>> am confused.
>>>
>>
>> The public LNT server crashes from time to time, and results submitted
>> to it during the downtime will not be recoverable.
>>
>
> Yes, it does. My hope is that this may be fixed with the move to
> postgresql. However, I don't see why you mention this point in this
> discussion. Are you saying that .json files would then be lost, whereas
> they are still available as our buildbot is more stable. That is true for
> now, but I hope it would get fixed.
>
> Cheers,
> Tobias
>
>
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