| From: | Ben Ciceron <ben(at)triggit(dot)com> |
|---|---|
| To: | Lonni J Friedman <netllama(at)gmail(dot)com> |
| Cc: | pgsql-admin(at)postgresql(dot)org |
| Subject: | Re: monitoring replicatgion : lag calculation |
| Date: | 2011-09-12 18:13:58 |
| Message-ID: | CAOsHk6HmxHhD+VA+Bdq9oDcgUMPQEdOmB0PEji01QzNx4f2rfg@mail.gmail.com |
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| Lists: | pgsql-admin |
perfect - thx!
Cheers,
Ben-
On Mon, Sep 12, 2011 at 10:41 AM, Lonni J Friedman <netllama(at)gmail(dot)com> wrote:
> On Mon, Sep 12, 2011 at 10:04 AM, Ben Ciceron <ben(at)triggit(dot)com> wrote:
>> hello,
>>
>> question about WAL on pg 9.0 :
>>
>> the doc at http://www.postgresql.org/docs/9.1/static/warm-standby.html#SYNCHRONOUS-REPLICATION
>> (section 25.2.5.2. Monitoring) says:
>>
>> You can calculate this lag by comparing the current WAL write
>> location on the primary with the last WAL location received by the
>> standby.
>>
>> but the WAL values i get are not 177/13C4E158 , 177/13C52BC0 so how to
>> calculate the lag ? should i apply a basic hex conversion first ?
>
> Pretty much. See:
> http://archives.postgresql.org/pgsql-hackers/2010-11/msg00252.php
>
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