Re: Patch: Show process IDs of processes holding a lock; show relation and tuple infos of a lock to acquire

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Christian Kruse <christian(at)2ndquadrant(dot)com>
Cc: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Rajeev rastogi <rajeev(dot)rastogi(at)huawei(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Subject: Re: Patch: Show process IDs of processes holding a lock; show relation and tuple infos of a lock to acquire
Date: 2014-02-03 10:43:04
Message-ID: CA+U5nM+Fi5R8Zp60xwnfD5iiaXDoa2_mU_9KmK+Pnb5eZL_JWw@mail.gmail.com
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On 3 February 2014 10:06, Christian Kruse <christian(at)2ndquadrant(dot)com> wrote:
> Hi,
>
> On 03/02/14 17:59, Fujii Masao wrote:
>> Since you added errdetail_log_plural(), ISTM that you need to update
>> sources.sgml.
>
> [x] Fixed.
>
>> >> While I'm griping, this message isn't even trying to follow the project's
>> >> message style guidelines. Detail or context messages are supposed to be
>> >> complete sentence(s), with capitalization and punctuation to match.
>> >
>> > Hm, I hope I fixed it in this version of the patch.
>>
>> Current message doesn't look like complete sentence yet... We would
>> need to use something like "Processes X, Y are holding while Z is waiting
>> for the lock.". I could not come up with good message, though..
>
> The problem is that we have two potential plural cases in this
> message. That leads to the need to formulate the second part
> independently from singular/plural. I tried to improve a little bit
> and propose this message:
>
> Singular:
> "The following process is holding the lock: A. The request queue
> consists of: B."
>
> Plural:
> "Following processes are holding the lock: A, B. The request queue
> consists of: C."

Seems too complex. How about this...

"Lock holder(s): A. Lock waiter(s) B"
"Lock holder(s): A, B. Lock waiter(s) C"

--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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