From: Jeff Hostetler <git@jeffhostetler.com>
To: Jakub Narebski <jnareb@gmail.com>, Josh Steadmon <steadmon@google.com>
Cc: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>, git@vger.kernel.org
Subject: Re: [RFC PATCH 3/3] trace2: add a schema validator for trace2 events
Date: Thu, 27 Jun 2019 09:57:16 -0400 [thread overview]
Message-ID: <2add419b-80e9-2b21-b4ae-eeb7a1f25776@jeffhostetler.com> (raw)
In-Reply-To: <86y31vxihj.fsf@gmail.com>
On 6/21/2019 7:53 AM, Jakub Narebski wrote:
> Josh Steadmon <steadmon@google.com> writes:
>> On 2019.06.12 15:28, Ævar Arnfjörð Bjarmason wrote:
>>> On Wed, Jun 12 2019, Josh Steadmon wrote:
>>>
>>>> trace_schema_validator can be used to verify that trace2 event output
>>>> conforms to the expectations set by the API documentation and codified
>>>> in event_schema.json (or strict_schema.json). This allows us to build a
>>>> regression test to verify that trace2 output does not change
>>>> unexpectedly.
>>>
>>> Does this actually work for you? As seen in my code at
>>> https://public-inbox.org/git/87zhnuwdkp.fsf@evledraar.gmail.com/ our
>>> test suite emits various lines of JSON that aren't even validly encoded,
>>> so I can't imagine we're passing any sort of proper parser validatior,
>>> let alone a schema validator.
> [...]
>> The problem with the existing validators is that they expect each file to be a
>> complete JSON entity, whereas the trace output is one object per line. You can
>> of course loop over the lines in a shell script, but in my testing this approach
>> took multiple hours on the full test suite trace output, vs. 15 minutes for the
>> implementation in this patch.
>
> Isn't this JSON-Lines (http://jsonlines.org/), also known as
> Line-delimited JSON (LDJSON), newline-delimited JSON (NDJSON) format?
Yes. My Trace2 event format is a series of JSON objects, one per line.
I didn't know there was an official name for it.
Thanks
Jeff
>
> Best,
> --
> Jakub Narębski
>
next prev parent reply other threads:[~2019-06-27 13:57 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-11 23:31 [RFC PATCH 0/3] Add a JSON Schema for trace2 events Josh Steadmon
2019-06-11 23:31 ` [RFC PATCH 1/3] trace2: correct trace2 field name documentation Josh Steadmon
2019-06-12 18:00 ` Junio C Hamano
2019-06-12 18:14 ` Josh Steadmon
2019-06-14 15:53 ` Jeff Hostetler
2019-06-11 23:31 ` [RFC PATCH 2/3] trace2: Add a JSON schema for trace2 events Josh Steadmon
2019-06-14 15:59 ` Jeff Hostetler
2019-06-20 17:26 ` Josh Steadmon
2019-06-11 23:31 ` [RFC PATCH 3/3] trace2: add a schema validator " Josh Steadmon
2019-06-12 13:28 ` Ævar Arnfjörð Bjarmason
2019-06-12 16:23 ` Josh Steadmon
2019-06-12 19:18 ` Jeff King
2019-06-20 18:15 ` Josh Steadmon
2019-06-21 11:53 ` Jakub Narebski
2019-06-27 13:57 ` Jeff Hostetler [this message]
2019-07-09 23:05 ` [RFC PATCH v2 0/3] Add a JSON Schema " Josh Steadmon
2019-07-09 23:05 ` [RFC PATCH v2 1/3] trace2: Add a JSON schema " Josh Steadmon
2019-07-10 18:32 ` Jakub Narebski
2019-07-24 22:37 ` Josh Steadmon
2019-07-09 23:05 ` [RFC PATCH v2 2/3] trace2: add a schema validator " Josh Steadmon
2019-07-11 13:35 ` Jakub Narebski
2019-07-24 22:47 ` Josh Steadmon
2019-07-09 23:05 ` [RFC PATCH v2 3/3] ci: run trace2 schema validation in the CI suite Josh Steadmon
2019-07-24 23:06 ` [PATCH v3 0/3] Add a JSON Schema for trace2 events Josh Steadmon
2019-07-24 23:06 ` [PATCH v3 1/3] trace2: Add a JSON schema " Josh Steadmon
2019-07-25 16:55 ` Junio C Hamano
2019-07-24 23:06 ` [PATCH v3 2/3] trace2: add a schema validator " Josh Steadmon
2019-07-24 23:06 ` [PATCH v3 3/3] ci: run trace2 schema validation in the CI suite Josh Steadmon
2019-07-25 11:18 ` [PATCH v3 0/3] Add a JSON Schema for trace2 events SZEDER Gábor
2019-07-25 16:14 ` Junio C Hamano
2019-07-26 21:16 ` Josh Steadmon
2019-07-25 23:42 ` SZEDER Gábor
2019-07-26 12:12 ` Johannes Schindelin
2019-07-26 13:53 ` SZEDER Gábor
2019-07-31 11:00 ` Johannes Schindelin
2019-07-26 22:03 ` Josh Steadmon
2019-08-01 18:08 ` Josh Steadmon
2019-08-02 1:52 ` Jonathan Nieder
2019-08-02 11:56 ` Johannes Schindelin
2019-08-02 16:59 ` Jonathan Nieder
2019-08-02 19:38 ` SZEDER Gábor
2019-08-02 23:25 ` Jonathan Nieder
2019-08-03 21:25 ` Johannes Schindelin
2019-08-02 19:16 ` SZEDER Gábor
2019-08-02 23:06 ` Jonathan Nieder
2019-08-03 7:35 ` SZEDER Gábor
2019-08-03 7:40 ` SZEDER Gábor
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