[pgpool-hackers: 3514] Re: Quarantine state in native replication mode is dangerous

Tatsuo Ishii ishii at sraoss.co.jp
Tue Feb 18 11:01:47 JST 2020


Hi Usama,

This is a reminder. We are going to release minor version on February
20th (+0900). Please commit necessary fixes by 19th (tomorrow).

Best regards,
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese:http://www.sraoss.co.jp

> Hi Ishii-San
> 
> 
> On Thu, Feb 13, 2020 at 6:08 AM Tatsuo Ishii <ishii at sraoss.co.jp> wrote:
> 
>> > Usama,
>> >
>> > I think quarantine state in native replication mode could cause data
>> > inconsistency. Below is a step to reproduce the problem.
>> [snip]
>> > Probably we should not allow setting failover_require_consensus to on
>> > in native replication mode, or at least add a strong warning to not do
>> > so in the doc. What do you think?
>>
> 
> I think not allowing the failover_require_consensus is the better way to go
> here,
> Since we are dealing with inconsistent data issue so in my opinion just a
> warning
> message would not be good enough.
> 
> 
> Best regards
> Muhammad Usama
> 
>>
>> Probably at least we should change the default value for
>> failover_require_consensus to off in pgpool.conf.sample-replication
>> toward next minor release scheduled on February 20.
>>
>> 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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