Re: Final findings: hung jobs

On 2020-08-14 08:49, Kern Sibbald wrote:
> Hello Phil,
> 
>  From what I hear from you, the bug involves several different Bacula 
> versions running on different machines, and never happens when 
> everything is running version 9.6.5.


No, that's not correct.  I have a heterogenous environment with clients
running on three different OS distributions (Fedora Linux, Gentoo Linux,
Solaris 11.3) and have tried multiple combinations of versions, and I
have found only a single determinant factor:

If the Director is 9.6.5, jobs intermittently hang.  If it is 9.6.3,
they don't.

This is completely unaffected by the platform or version of the clients.
 Either all clients, 9.6.3 or 9.6.5, get randomly hung jobs, or none of
them, determined *solely* by whether the Director is 9.6.5 or 9.6.3.

Right now the Director is 9.6.3, *everything* else is 9.6.5, and I
haven't had a hung job in two weeks.


My suspicion is that the bug lies somewhere in the MySQL driver code or
in interactions with the MySQL driver, but it's just a suspicion.  I
suspect that driver could use an overhaul.



-- 
  Phil Stracchino
  Babylon Communications
  [email protected]
  [email protected]
  Landline: +1.603.293.8485
  Mobile:   +1.603.998.6958