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Re: Parameter name standby_mode

From: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc: Joachim Wieland <joe(at)mcknight(dot)de>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Parameter name standby_mode
Date: 2010-02-12 07:38:20
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On Fri, Feb 12, 2010 at 4:04 PM, Heikki Linnakangas
<heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
> Fujii Masao wrote:
>> On Fri, Feb 12, 2010 at 3:19 PM, Heikki Linnakangas
>> <heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
>>> Fujii Masao wrote:
>>>> But if we fail in restoring the archived WAL file, "standby_mode = on"
>>>> *always* tries to start streaming replication.
>>> Hmm, somehow I thought it doesn't if you don't set primary_conninfo. I
>>> think that's the way it should work, ie. if primary_conninfo is not set,
>>> don't launch walreceiver but just keep trying to restore from the archive.
>> Yeah, even if primary_conninfo is not given, the standby tries to invoke
>> walreceiver by using the another connection settings (environment variables
>> or defaults). This is intentional behavior, and would make the setup of SR
>> easier. So I'd like to leave it be.
> You could do primary_conninfo='' for that.
> Maybe we should have two options, "streaming_mode='on'" and
> "primary_conninfo='...'".

It looks better for me to extend the "standby_mode":
For example, standby_mode = 'streaming' or 'archive'.


Fujii Masao
NTT Open Source Software Center

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Next:From: Heikki LinnakangasDate: 2010-02-12 07:47:59
Subject: Re: Parameter name standby_mode
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Subject: Re: Re: [COMMITTERS] pgsql: Make standby server continuously retry restoring the next WAL

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