Re: Sync Rep for 2011CF1

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Cc: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Sync Rep for 2011CF1
Date: 2011-02-16 15:27:54
Message-ID: AANLkTinxH1R1=tnntHnvQ9+OC4MCh25=dxRyiyiZV00H@mail.gmail.com
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On Tue, Feb 15, 2011 at 10:13 PM, Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:
> On Wed, Feb 16, 2011 at 2:08 AM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>> On Mon, Feb 14, 2011 at 12:25 AM, Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:
>>> On Fri, Feb 11, 2011 at 4:06 AM, Heikki Linnakangas
>>> <heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
>>>> I added a XLogWalRcvSendReply() call into XLogWalRcvFlush() so that it also
>>>> sends a status update every time the WAL is flushed. If the walreceiver is
>>>> busy receiving and flushing, that would happen once per WAL segment, which
>>>> seems sensible.
>>>
>>> This change can make the callback function "WalRcvDie()" call ereport(ERROR)
>>> via XLogWalRcvFlush(). This looks unsafe.
>>
>> Good catch.  Is the cleanest solution to pass a boolean parameter to
>> XLogWalRcvFlush() indicating whether we're in the midst of dying?
>
> Agreed if the comment about why such a boolean parameter is
> required is added.

OK, done.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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