[pgpool-hackers: 370] Re: "On memory" vs. "In memory"

Tatsuo Ishii ishii at postgresql.org
Mon Oct 7 07:56:48 JST 2013


Good question. I think you could add the third method "SSD" in to on
memory query cache module, including pool_commit_cache,
pool_fetch_cache. Another idea is, create a "SSD cache server" which
is compatible with memcached.
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp

> Hi, Tatsuo,
> My question is that are there any chances to use other kind of query cache
> in the future, such as SSD based cache.
> If so, in memory cache should keep, I think.
> 
> Bambo Huang
> 
> 
> On Sun, Oct 6, 2013 at 5:05 PM, Tatsuo Ishii <ishii at postgresql.org> wrote:
> 
>> Hi,
>>
>> We use a term "on memory" for the name of the query cache
>> system. However sometime ago, Bruce Momjian has pointed out that "on
>> memory" is not correct and should be changed to "in memory".  I also
>> remember that Oracle's new feature "In-Memory option to database 12c".
>>
>> So my question is, should we entirely replace "on memory" with "in
>> memory"? Or, considering that we have removed the disk based query
>> cache system, we should just remove "on memory" from the term "on
>> memory query cache" and call it simply "query cache"?
>>
>> Suggestions and opinions are welcome.
>> --
>> Tatsuo Ishii
>> SRA OSS, Inc. Japan
>> English: http://www.sraoss.co.jp/index_en.php
>> Japanese: http://www.sraoss.co.jp
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