Re: Time limit for a process to hold Content lock in Buffer Cache

On Thu, May 23, 2013 at 8:52 PM, Amit Langote <amitlangote09(at)gmail(dot)com> wrote:
>>
>> If you let an uncooperative user issue arbitrary SQL queries, he can
>> do any number of things to put server performance into the tank.
>> For instance, take out exclusive locks on all your tables and just
>> go to sleep (although I think this is limited by table permissions in
>> recent PG versions). Or start up an unconstrained join on some giant
>> tables. etc. etc. This isn't an area that people have felt deserved
>> adding a lot of overhead to control.
>
> In such a case, would statement_timeout apply? If using
> statement_timeout, would the longest a client can stall server be
> limited to statement_timeout amount of time?
>

I am not sure, but does statement_timeout depend on *what* the query
is doing internally(i.e. if it is holding lots of locks,pins etc)?

Regards,

Atri

--
Regards,

Atri
l'apprenant