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From: Cyrill Gorcunov via Tarantool-patches <tarantool-patches@dev.tarantool.org>
To: Serge Petrenko <sergepetrenko@tarantool.org>
Cc: v.shpilevoy@tarantool.org, tarantool-patches@dev.tarantool.org
Subject: Re: [Tarantool-patches] [PATCH v2 2/8] txn_limbo: fix promote term filtering
Date: Fri, 18 Jun 2021 01:05:07 +0300
Message-ID: <YMvHEwYjXn0diYNb@grain> (raw)
In-Reply-To: <fd53102c6855226eedb14818adecd4a0d2030214.1623963649.git.sergepetrenko@tarantool.org>

On Fri, Jun 18, 2021 at 12:07:36AM +0300, Serge Petrenko wrote:
> txn_limbo_process() used to filter out promote requests whose term was
> equal to the greatest term seen. This wasn't correct for PROMOTE entries
> with term 1.
...
> +	if (term > limbo->promote_greatest_term) {
> +		limbo->promote_greatest_term = term;
> +	} else if (req->type == IPROTO_PROMOTE &&
> +		   limbo->promote_greatest_term > 1) {
> +		/* PROMOTE for outdated term. Ignore. */
> +		say_info("RAFT: ignoring PROMOTE request from instance "
> +			 "id %"PRIu32" for term %"PRIu64". Greatest term seen "
> +			 "before (%"PRIu64") is bigger.", origin, term,
> +			 limbo->promote_greatest_term);
> +		return;
>  	}

Serge, please don't use PRIx helper, they are completely unreadable.
As far as I remember we agreed to use %llu with explicit long long
conversion. Ie

	say_info("RAFT: ignoring PROMOTE request from instance "
		 "id %u for term %lld . Greatest term seen "
		 "before (%llu) is bigger.", origin, (long long)term,
		 (long long)limbo->promote_greatest_term);

surely we can fix it on top of the series.

  reply	other threads:[~2021-06-17 22:05 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-17 21:07 [Tarantool-patches] [PATCH v2 0/8] forbid implicit limbo ownership transition Serge Petrenko via Tarantool-patches
2021-06-17 21:07 ` [Tarantool-patches] [PATCH v2 1/8] replication: always send raft state to subscribers Serge Petrenko via Tarantool-patches
2021-06-17 21:07 ` [Tarantool-patches] [PATCH v2 2/8] txn_limbo: fix promote term filtering Serge Petrenko via Tarantool-patches
2021-06-17 22:05   ` Cyrill Gorcunov via Tarantool-patches [this message]
2021-06-18  8:55     ` Serge Petrenko via Tarantool-patches
2021-06-18 10:31   ` Cyrill Gorcunov via Tarantool-patches
2021-06-21 15:09     ` Serge Petrenko via Tarantool-patches
2021-06-17 21:07 ` [Tarantool-patches] [PATCH v2 3/8] raft: refactor raft_new_term() Serge Petrenko via Tarantool-patches
2021-06-17 21:07 ` [Tarantool-patches] [PATCH v2 4/8] box: make promote always bump the term Serge Petrenko via Tarantool-patches
2021-06-17 21:07 ` [Tarantool-patches] [PATCH v2 5/8] replication: forbid implicit limbo owner transition Serge Petrenko via Tarantool-patches
2021-06-17 21:07 ` [Tarantool-patches] [PATCH v2 6/8] box: introduce `box.ctl.demote` Serge Petrenko via Tarantool-patches
2021-06-17 21:15   ` Serge Petrenko via Tarantool-patches
2021-06-17 21:07 ` [Tarantool-patches] [PATCH v2 7/8] txn_limbo: persist the latest effective promote in snapshot Serge Petrenko via Tarantool-patches
2021-06-17 21:07 ` [Tarantool-patches] [PATCH v2 8/8] replication: send latest effective promote in initial join Serge Petrenko via Tarantool-patches
2021-06-18 13:02 ` [Tarantool-patches] [PATCH v2 0/8] forbid implicit limbo ownership transition Cyrill Gorcunov via Tarantool-patches
2021-06-21 12:11 ` [Tarantool-patches] [PATCH v2 9/8] replication: send current Raft term in join response Serge Petrenko via Tarantool-patches

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