From: Vladislav Shpilevoy via Tarantool-patches <tarantool-patches@dev.tarantool.org>
To: Serge Petrenko <sergepetrenko@tarantool.org>,
tarantool-patches@dev.tarantool.org, gorcunov@gmail.com
Subject: Re: [Tarantool-patches] [PATCH 1/1] qsync: handle async txns right during CONFIRM
Date: Fri, 28 May 2021 21:13:18 +0200 [thread overview]
Message-ID: <c9fbdb3d-a2a1-e8eb-27dd-5f8db407d8ac@tarantool.org> (raw)
In-Reply-To: <3dc7734c-a572-7f69-a6b8-ad5aa7536873@tarantool.org>
Hi! Thanks for the review!
>> diff --git a/src/box/txn_limbo.c b/src/box/txn_limbo.c
>> index f287369a2..05f0bf30a 100644
>> --- a/src/box/txn_limbo.c
>> +++ b/src/box/txn_limbo.c
>> @@ -389,6 +389,27 @@ txn_limbo_read_confirm(struct txn_limbo *limbo, int64_t lsn)
>> */
>> if (e->lsn == -1)
>> break;
>> + } else if (e->txn->signature < 0) {
>> + /*
>> + * A transaction might be covered by the CONFIRM even if
>> + * it is not written to WAL yet when it is an async
>> + * transaction. It could be created just when the
>> + * CONFIRM was being written to WAL.
>> + */
>> + assert(e->txn->status == TXN_PREPARED);
>> + /*
>> + * Let it complete normally as a plain transaction.
>> + */
>> + txn_clear_flags(e->txn, TXN_WAIT_SYNC | TXN_WAIT_ACK);
>
> AFAICS it's enough to clear WAIT_SYNC here.
> Asynchronous transactions never have WAIT_ACK set, do they?
Yes, sorry, I was in a big hurry when sent this patch. Fixed:
====================
@@ -400,7 +400,7 @@ txn_limbo_read_confirm(struct txn_limbo *limbo, int64_t lsn)
/*
* Let it complete normally as a plain transaction.
*/
- txn_clear_flags(e->txn, TXN_WAIT_SYNC | TXN_WAIT_ACK);
+ txn_clear_flags(e->txn, TXN_WAIT_SYNC);
txn_limbo_remove(limbo, e);
next prev parent reply other threads:[~2021-05-28 19:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-27 21:28 Vladislav Shpilevoy via Tarantool-patches
2021-05-28 7:23 ` Cyrill Gorcunov via Tarantool-patches
2021-05-28 19:13 ` Vladislav Shpilevoy via Tarantool-patches
2021-05-28 9:01 ` Serge Petrenko via Tarantool-patches
2021-05-28 19:13 ` Vladislav Shpilevoy via Tarantool-patches [this message]
2021-06-01 7:37 ` Serge Petrenko via Tarantool-patches
2021-06-01 20:59 ` Vladislav Shpilevoy via Tarantool-patches
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