Re: [HACKERS] PID of backend

On 02-Jun-99 Tom Lane wrote:
>>>> Postgres 6.5 backend (current CVS) stop answering query
>>>>
>>>>>>>>> Jun 2 00:12:32 mail popper[17585]: PgSQL:ROLLBACK failed:
>>>>>>>>> PQsendQuery()
>>>>>>>>> There is no connection to the backend.
>>>>
>>>> every 300 000 cursor allocation so I wish to restart it every 100 000
>>>> is there a way to do it simple than
>>>> kill `ps ax | awk .....`
>
> Why in the world do you want to use kill at all? If you want to get
> rid of your current backend, just close the connection. I really doubt
> that killing the postmaster is necessary or appropriate.
>
> (Of course the real answer is to find a way to avoid the memory leak that
> I suppose you are running into. But you haven't given us enough info
> to offer any advice in that direction.)
>
>> I need something usable inside program other than scanning process table.
>
> There is a libpq function that will tell you the PID of the currently
> connected backend: PQbackendPID. But it's not usually good for much
> except debugging purposes.

Thanks ! It's exactly what I need. (But it s'seems not documented ?)

I need to restart backend because (as written above)
every 300 000 "open cursor" query completly loose it's mind.

---
Dmitry Samersoff, dms(at)wplus(dot)net, ICQ:3161705
http://devnull.wplus.net
* There will come soft rains ...