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From: Konstantin Osipov <kostja.osipov@gmail.com>
To: Nikita Pettik <korablev@tarantool.org>
Cc: tarantool-patches@dev.tarantool.org, v.shpilevoy@tarantool.org
Subject: Re: [Tarantool-patches] [PATCH] vinyl: update mem ptr in vy_build_insert_tuple() after yield
Date: Fri, 20 Mar 2020 20:40:44 +0300	[thread overview]
Message-ID: <20200320174044.GA5670@atlas> (raw)
In-Reply-To: <20200320150639.GC14930@tarantool.org>

* Nikita Pettik <korablev@tarantool.org> [20/03/20 18:07]:
> > * Nikita Pettik <korablev@tarantool.org> [20/03/20 15:41]:
> > > vy_build_insert_tuple() processes insertion into secondary indexes being
> > > created. It contains yield points during which in-memory level of LSM
> > > tree may change (for example rotate owing to triggered dump). So after
> > > yield point it is required to fetch from LSM struct pointer to mem again
> > > to operate on valid metadata. This patch updates pointer to mem after
> > > mentioned yield point.
> > 
> > The patch is LGTM, how long does the test run? 
> 
> Up to ~5 seconds as a rule.
>  
> > Can you add it to an existing low-quota test, to avoid
> > setup/teardown overhead for such a minor fix?
> 
> Ok. But I woudn't say it is minor - bug leads to crashes under
> highload on customer's servers :)

The problem is pretty minor. The fix is actually not necessarily
the best one, too (but seems adequate for 1.10).

-- 
Konstantin Osipov, Moscow, Russia

  parent reply	other threads:[~2020-03-20 17:40 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-20 12:32 Nikita Pettik
2020-03-20 12:42 ` Nikita Pettik
2020-03-20 13:33 ` Konstantin Osipov
2020-03-20 15:06   ` Nikita Pettik
2020-03-20 15:19     ` Kirill Yukhin
2020-03-20 17:45       ` Konstantin Osipov
2020-03-20 17:40     ` Konstantin Osipov [this message]
2020-03-20 18:24       ` Nikita Pettik
2020-03-20 19:40         ` Konstantin Osipov
2020-03-20 15:23 ` Kirill Yukhin

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