From: Scott Marlowe <scott.marlowe@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Jaume Sabater <jsabater@gmail.com>
Cc: pgsql-admin@postgresql.org
Subject: Re: Warm standby recovery failure
Date: Tue, 3 Feb 2009 19:27:23 -0700
Message-ID: <dcc563d10902031827y36fe4c41x3cf82d39713ad55e@mail.gmail.com> (raw)
In-Reply-To: <8207.1233327145@sss.pgh.pa.us>
References: <16b031c0901291147m17c9e176occ73994d2706f454@mail.gmail.com>
<14981.1233278521@sss.pgh.pa.us>
<3786f7bb0901300053s20fb930bv76c0bb46479be7fe@mail.gmail.com>
<8207.1233327145@sss.pgh.pa.us>
On Fri, Jan 30, 2009 at 7:52 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Jaume Sabater <jsabater@gmail.com> writes:
>> On Fri, Jan 30, 2009 at 2:22 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>>> We probably should add a caution about this to the manual's discussion
>>> of how to write archiving scripts.
>
>> I presume you mean the copy/transfer process did not do its job
>> correctly, Tom. Therefore, I would advise using a script that compares
>> the MD5/SHA1 sums of the origin and destination files and retries the
>> copy/transfer process before returning an exit status to the server
>> (archive_command call). Do you think this would suffice?
>
> That seems like using a sledgehammer to swat a fly. The problem as
> I saw it was that the script was probably simply not checking for
> an error result from 'cp'.
Plus, if you're using a system like rsync it uses checksums to make
sure the data transferred is correct if you use the -c (think that's
the one) switch.
--
When fascism comes to America, it will be the intolerant selling it as
diversity.
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To: pgsql-admin@postgresql.org
Cc: scott.marlowe@gmail.com, tgl@sss.pgh.pa.us, jsabater@gmail.com
Subject: Re: Warm standby recovery failure
In-Reply-To: <dcc563d10902031827y36fe4c41x3cf82d39713ad55e@mail.gmail.com>
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