Re: [HACKERS] Re: [COMMITTERS] pgsql: Remove pgbench "progress" testpending solution of its timing is (fwd) - Mailing list pgsql-hackers

From Fabien COELHO
Subject Re: [HACKERS] Re: [COMMITTERS] pgsql: Remove pgbench "progress" testpending solution of its timing is (fwd)
Date
Msg-id alpine.DEB.2.21.1807181505080.26741@lancre
Whole thread Raw
In response to Re: [HACKERS] Re: [COMMITTERS] pgsql: Remove pgbench "progress" testpending solution of its timing is (fwd)  (Heikki Linnakangas <hlinnaka@iki.fi>)
Responses Re: [HACKERS] Re: [COMMITTERS] pgsql: Remove pgbench "progress" testpending solution of its timing is (fwd)
List pgsql-hackers
Hello Heikki,

>> Yep. The attached version does only the tailing stuff under -R and not all
>> threads were stopped on errors, with comments to tell about the why.
>
> Hmm. How about we just remove this special case from doCustom():
>
>>  case CSTATE_START_THROTTLE:
>>    // ...
>>    if (duration > 0 && st->txn_scheduled > end_time)
>>    {
>>     st->state = CSTATE_FINISHED;
>>     break;
>>    }
>
> That way, we let the client go into CSTATE_THROTTLE state, even though we 
> know that the timer will run out before we reach txn_scheduled. Then it will 
> work the way we want, right? One small difference is that then the clients 
> will keep the connections open longer, until the timer expires, but I think 
> that's reasonable. Less surprising than the current behavior, even.

Hmmm... in this instance, and if this test is removed, ISTM that it can 
start the transaction, re-establishing a connection under --connect, and 
the transaction will run to its end even if it is beyond the expected end 
of run. So removing this test does not seem desirable.

-- 
Fabien.


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