| From: | Tatsuo Ishii <ishii(at)postgresql(dot)org> |
|---|---|
| To: | pavan(dot)deolasee(at)gmail(dot)com |
| Cc: | obartunov(at)gmail(dot)com, robertmhaas(at)gmail(dot)com, josh(at)agliodbs(dot)com, masonlists(at)gmail(dot)com, simon(at)2ndquadrant(dot)com, bruce(at)momjian(dot)us, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Horizontal scalability/sharding |
| Date: | 2015-09-03 05:42:02 |
| Message-ID: | 20150903.144202.999966130688607662.t-ishii@sraoss.co.jp |
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| Lists: | pgsql-hackers |
>> One lesson from XL we got is that we need testing framework for cluster,
>> so any cluster project should at least pass functional and performance
>> testing.
>>
>
> +1. In early XC days, we focused a lot on adding newer features and
> supporting as many PG features as possible. That took its toll on the
> testing and QA. It was a mistake though my feeling was we tried to correct
> that to some extend with XL. We did a 9.5 merge, which of course was a big
> deal, but other than more time is being spent on improving stability and
> performance
Agreed. Any cluster project needs a cluster testing framework.
pgpool-II project runs "build farm" which runs cluster regression
tests every day. The tests includes several versions of pgpool-II and
PostgreSQL combinations using docker. Still it needs more tests but
even with limited test cases, it is pretty usefull to detect bugs.
Best regards,
--
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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