| From: | Merlin Moncure <mmoncure(at)gmail(dot)com> |
|---|---|
| To: | Greg Smith <greg(at)2ndquadrant(dot)com> |
| Cc: | Grzegorz Jaśkiewicz <gryzman(at)gmail(dot)com>, Krzysztof Kardas <krzychk2(at)gmail(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: PostgreSQL with Zabbix - problem of newbe |
| Date: | 2010-04-09 15:06:07 |
| Message-ID: | l2lb42b73151004090806s84122169ibc27517b0816dd6f@mail.gmail.com |
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| Lists: | pgsql-performance |
2010/4/9 Greg Smith <greg(at)2ndquadrant(dot)com>:
> Merlin Moncure wrote:
>>
>> postgresql 8.2: autovacuum enabled by default
>> postgresql 8.3: HOT (reduces update penalty -- zabbix does a lot of
>> updates)
>>
>
> autovacuum wasn't enabled by default until 8.3. It didn't really work all
> that well out of the box until the support for multiple workers was added in
> that version, along with some tweaking to its default parameters. There's
> also a lot more logging information available, both the server logs and the
> statistics tables, to watch what it's doing that were added in 8.3.
you're right! iirc it was changed at the last minute...
merlin
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