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From: Cyrill Gorcunov via Tarantool-patches <tarantool-patches@dev.tarantool.org>
To: Serge Petrenko <sergepetrenko@tarantool.org>
Cc: Vladislav Shpilevoy <v.shpilevoy@tarantool.org>,
	tml <tarantool-patches@dev.tarantool.org>
Subject: Re: [Tarantool-patches] [PATCH] limbo: introduce request processing hooks
Date: Mon, 12 Jul 2021 20:04:45 +0300
Message-ID: <YOx2LUFGuzmvFRKX@grain> (raw)
In-Reply-To: <d5cfa2b5-7b34-f20d-5957-aa7153ceaf25@tarantool.org>

On Mon, Jul 12, 2021 at 07:49:49PM +0300, Serge Petrenko wrote:
> > 
> > at this moment the data from applier 2 is actually queued
> > for write as valid but we just wrote the term 3, so if we would
> > had been updating terms map earlier (before jornal write) the data
> > from applier 2 should be NOPified. I think there is some problem
> > because due to journal write lag the data is not as it could be
> > if terms map updated early. Serge, Vlad, am I right? Which consequences
> > can be here? IOW, should not we track terms earlier even without
> > my filter series?
> Looks like a bug, indeed.
> 
> We may either introduce a limbo latch or start tracking terms before the
> WAL write.
> 
> I'm starting to like the idea with limbo latch more.
> 
> It's come up a couple of times already for various occasions, so maybe it's
> time to finally implement it.

Yeah, I think this fully incorporates into the my filter+apply stages
and I'll address the latching there then. Thanks!

  reply	other threads:[~2021-07-12 17:05 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-10 22:28 Cyrill Gorcunov via Tarantool-patches
2021-07-11 14:00 ` Vladislav Shpilevoy via Tarantool-patches
2021-07-11 18:22   ` Cyrill Gorcunov via Tarantool-patches
2021-07-12  8:03     ` Vladislav Shpilevoy via Tarantool-patches
2021-07-12  8:09       ` Cyrill Gorcunov via Tarantool-patches
2021-07-12 21:20         ` Vladislav Shpilevoy via Tarantool-patches
2021-07-12 22:32           ` Cyrill Gorcunov via Tarantool-patches
2021-07-13 19:32             ` Vladislav Shpilevoy via Tarantool-patches
2021-07-12  8:01   ` Serge Petrenko via Tarantool-patches
2021-07-12  8:04     ` Vladislav Shpilevoy via Tarantool-patches
2021-07-12  8:12       ` Cyrill Gorcunov via Tarantool-patches
2021-07-12  8:23         ` Cyrill Gorcunov via Tarantool-patches
2021-07-12 21:20         ` Vladislav Shpilevoy via Tarantool-patches
2021-07-12 22:34           ` Cyrill Gorcunov via Tarantool-patches
2021-07-12  9:43     ` Cyrill Gorcunov via Tarantool-patches
2021-07-12 15:48       ` Cyrill Gorcunov via Tarantool-patches
2021-07-12 16:49         ` Serge Petrenko via Tarantool-patches
2021-07-12 17:04           ` Cyrill Gorcunov via Tarantool-patches [this message]
2021-07-12 21:20             ` Vladislav Shpilevoy via Tarantool-patches
2021-07-12 21:52               ` Cyrill Gorcunov via Tarantool-patches
2021-07-12  7:54 ` Serge Petrenko via Tarantool-patches

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