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From: Vladislav Shpilevoy <v.shpilevoy@tarantool.org>
To: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Mons Anderson <v.perepelitsa@corp.mail.ru>,
	tml <tarantool-patches@dev.tarantool.org>
Subject: Re: [Tarantool-patches] [PATCH v3 3/3] test: add replication/gh-5446-sqync-eval-quorum.test.lua
Date: Thu, 10 Dec 2020 00:22:42 +0100	[thread overview]
Message-ID: <79130404-8280-cd06-6888-f8a2c53ad755@tarantool.org> (raw)
In-Reply-To: <20201208084823.GH2303@grain>

On 08.12.2020 09:48, Cyrill Gorcunov wrote:
> On Sat, Dec 05, 2020 at 12:52:25AM +0100, Vladislav Shpilevoy wrote:
>> Thanks for the patch!
>>
>> See 5 comments below.
>>
> 
> Here is a force-pushed update
> 
>  - I keep use explicit "start server replica1" which allows me
>    to grep update of quorum one by one
>  - I dropped unused space creation
>  - Raised number of repicas up to 6
>  - Since the patch is big i prefer to have it as a separate commit
> 
> It is unclear for me yet how to detect the replication failure
> when we would stop replica. Could you please help?

You try to make a synchronous transaction. If not enough replicas are
alive, the transaction will timeout.

I also ask you to add a test on what happens, when quorum formula is
changed while there are waiting transactions in the limbo. For example,
if I set the formula to return a smaller value than the current number
of alive replicas, the transactions should get committed.

  reply	other threads:[~2020-12-09 23:22 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-03 14:04 [Tarantool-patches] [PATCH v3 0/3] qsync: evaluate replication_synchro_quorum dynamically Cyrill Gorcunov
2020-12-03 14:04 ` [Tarantool-patches] [PATCH v3 1/3] cfg: add cfg_isnumber helper Cyrill Gorcunov
2020-12-03 14:04 ` [Tarantool-patches] [PATCH v3 2/3] cfg: support symbolic evaluation of replication_synchro_quorum Cyrill Gorcunov
2020-12-04 23:52   ` Vladislav Shpilevoy
2020-12-07 20:17     ` Cyrill Gorcunov
2020-12-07 21:25     ` Vladislav Shpilevoy
2020-12-07 21:48       ` Cyrill Gorcunov
2020-12-08  8:02         ` Cyrill Gorcunov
2020-12-09 23:22           ` Vladislav Shpilevoy
2020-12-11 12:25             ` Cyrill Gorcunov
2020-12-13 18:12               ` Vladislav Shpilevoy
2020-12-03 14:04 ` [Tarantool-patches] [PATCH v3 3/3] test: add replication/gh-5446-sqync-eval-quorum.test.lua Cyrill Gorcunov
2020-12-04 23:52   ` Vladislav Shpilevoy
2020-12-08  8:48     ` Cyrill Gorcunov
2020-12-09 23:22       ` Vladislav Shpilevoy [this message]
2020-12-04 10:15 ` [Tarantool-patches] [PATCH v3 0/3] qsync: evaluate replication_synchro_quorum dynamically Serge Petrenko

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