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* Avoid using swap in a cluster
@ 2005-09-02 01:04 Ricardo Humphreys <ricardoainati@gmail.com>
0 siblings, 1 reply; 3+ messages in thread
From: Ricardo Humphreys @ 2005-09-02 01:04 UTC (permalink / raw)
To: pgsql-performance
Hi all.
In a cluster, is there any way to use the main memory of the other nodes
instead of the swap? If I have a query with many sub-queries and a lot of
data, I can easily fill all the memory in a node. The point is: is there any
way to continue using the main memory from other nodes in the same query
instead of the swap?
Thank you,
Ricardo.
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: Avoid using swap in a cluster
@ 2005-09-02 09:42 Richard Huxton <dev@archonet.com>
parent: Ricardo Humphreys <ricardoainati@gmail.com>
0 siblings, 1 reply; 3+ messages in thread
From: Richard Huxton @ 2005-09-02 09:42 UTC (permalink / raw)
To: Ricardo Humphreys <ricardoainati@gmail.com>; +Cc: pgsql-performance
Ricardo Humphreys wrote:
> Hi all.
> In a cluster, is there any way to use the main memory of the other nodes
> instead of the swap? If I have a query with many sub-queries and a lot of
> data, I can easily fill all the memory in a node. The point is: is there any
> way to continue using the main memory from other nodes in the same query
> instead of the swap?
I don't know of any clustered version of PG that can spread queries over
multiple machines. Can I ask what you are using?
--
Richard Huxton
Archonet Ltd
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: Avoid using swap in a cluster
@ 2005-09-02 11:18 Alex Stapleton <alexs@advfn.com>
parent: Richard Huxton <dev@archonet.com>
0 siblings, 0 replies; 3+ messages in thread
From: Alex Stapleton @ 2005-09-02 11:18 UTC (permalink / raw)
To: Richard Huxton <dev@archonet.com>; +Cc: Ricardo Humphreys <ricardoainati@gmail.com>; pgsql-performance
On 2 Sep 2005, at 10:42, Richard Huxton wrote:
> Ricardo Humphreys wrote:
>
>> Hi all.
>> In a cluster, is there any way to use the main memory of the
>> other nodes instead of the swap? If I have a query with many sub-
>> queries and a lot of data, I can easily fill all the memory in a
>> node. The point is: is there any way to continue using the main
>> memory from other nodes in the same query instead of the swap?
>>
>
> I don't know of any clustered version of PG that can spread queries
> over multiple machines. Can I ask what you are using?
IIRC GreenPlums DeepGreen MPP (Version 2) can do it. It does cost
money though, but it is a very nice product.
> --
> Richard Huxton
> Archonet Ltd
>
> ---------------------------(end of
> broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do not
> match
>
^ permalink raw reply [nested|flat] 3+ messages in thread
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2005-09-02 01:04 Avoid using swap in a cluster Ricardo Humphreys <ricardoainati@gmail.com>
2005-09-02 09:42 ` Richard Huxton <dev@archonet.com>
2005-09-02 11:18 ` Alex Stapleton <alexs@advfn.com>
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