From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
---|---|
To: | Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Kevin Grittner <kgrittn(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com> |
Subject: | Re: WARNING: relcache reference leak: relation "p1" not closed |
Date: | 2017-03-07 01:49:48 |
Message-ID: | CAB7nPqRgC_Ga+0QW3CueSBRHUetwzCUkca-Oh+8gvERDik22SQ@mail.gmail.com |
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On Tue, Mar 7, 2017 at 10:37 AM, Amit Langote
<Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> wrote:
> On 2017/03/07 7:28, Tom Lane wrote:
>> Kevin Grittner <kgrittn(at)gmail(dot)com> writes:
>>> With e434ad39ae7316bcf35fd578dd34ad7e1ff3c25f I did a `make world`,
>>> `make install-world`, a fresh default initdb, a start with default
>>> config, `make installcheck`, connected to the regression database
>>> with psql as the initial superuser, and ran:
>>
>>> regression=# vacuum freeze analyze;
>>> WARNING: relcache reference leak: relation "p1" not closed
>>> VACUUM
>>
>> p1 is a partitioned table. (BTW, could I lobby for people not to use such
>> generic, collision-prone names for tables that will be left behind after
>> the regression tests?) Also, I find that "vacuum analyze" is sufficient,
>> or even just "analyze", or "analyze p1". I think it's highly likely this
>> was introduced by 3c3bb99330aa9b4c2f6258bfa0265d806bf365c3. Certainly
>> that failed to add appropriate regression test cases, or we would have
>> noticed this already.
>
> That's right, sorry about that. Attached patch fixes the relcache leak
> and adds tests in vacuum.sql and truncate.sql.
(I was just poking at that)
if (childrel != onerel)
heap_close(childrel, AccessShareLock);
+ else
+ heap_close(childrel, NoLock);
continue;
Shouldn't that be conditional on the relkind of childrel?
--
Michael
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