Re: Upgrade from 7.0.2 to 8.0_BETA: some trouble with sockets (I think)

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sun, Jul 02, 2017 at 03:55:39PM +0200, BERTRAND Joël wrote:
> > Can you ktrace the mysql daemon while doint this ?
> > Eventually match the tcpdump timestamps with the kdump one, to see
> > exaclty
> > what cause the socket to be closed, and what is happening before.
> 
> I have ktrace'd mysqld process before posting here (only when I try to open
> a new connection from client). I paste an extraction of this file :

Are you sure you got all the related informations ?
this is where mayching timestamps from tcpdump with timestamps from
kdump -T would help

> 
>  14288     13 mysqld   RET   __gettimeofday50 0
>  14288     13 mysqld   CALL
> ___lwp_park60(0,1,0x79f65fdffed0,0,0x79f663df2198,0x79f663df2198)
>  14288     14 mysqld   RET   ___lwp_park60 -1 errno 60 Connection timed out

Someone familiar with our pthread implementation will have to tell
if ___lwp_park60 returning this is OK or not

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
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