Re: Réf. : Linux and DB2

Sorry, up to know I haven't known ulimit -a

here are all values:

core file size        (blocks, -c) 0
data seg size         (kbytes, -d) unlimited
file size             (blocks, -f) unlimited
max locked memory     (kbytes, -l) unlimited
max memory size       (kbytes, -m) unlimited
open files                    (-n) 4096
pipe size          (512 bytes, -p) 8
stack size            (kbytes, -s) unlimited
cpu time             (seconds, -t) unlimited
max user processes            (-u) 7168
virtual memory        (kbytes, -v) unlimited



I red about a maximum connections problem at mysql ( 
http://dev.mysql.com/doc/mysql/en/linux-post-install.html ) .

Any Ideas, if there could bei similarities between the mysql problem and 
the DB2 Connect problem??
Thanks!


Sebastien Berube schrieb:

>
>
>
> Have you checked the ulimits for the user that's actually running the
> application that connects?  You might just be running this application as
> root and running out of file descriptors...
>
> -- 
> Sébastien Bérubé
> (514) 964-1828
> [email protected]
>
> "With sufficient thrust, pigs fly just fine."
>
>
>                                                                                                                                       
>                      
> Markus                                                                                                           
>                      <updates4004@vr-w        Pour :    
> [email protected]                                                 
>                      eb.de>                   cc 
> :                                                                                    
>                                               Objet :   Linux and 
> DB2                                                                 
>                      04/04/2005 
> 02:56                                                                                                 
>                      
> PM                                                                                                               
>                                                                                                                                       
>
>
>
> Hello all!
>
> Does anybody use DB2Connect on United Linux 1.0 We have the following
> Problem:
>
> The DB2Connect Software enables access from DB2 Clients (e.g. for
> connecting Application Servers to Databases) to
> to DB2 Databases on Z/oS Systems. You can say that DB2Connect works as a
> gateway.
>
> At the moment we can't open more then 1100 parallel connections per
> DB2Connect installation. But doing the same on AIX 4000 - 5000
> connections are possible at the same time.
> At the moment, suing United Linux 1.0 reach 1100 Connections then the
> whole machine hangs and must be rebooted. We don't achieve the CPU and
> RAM limits.
>
> Are there e.g. any kernel parameters that limit the number of parallel
> calls to a Server ?? We are using kernel 2.4.21!
> First of all, we get a sempahore error, but after changing the values in
> sysctl.conf, the were no further errors.
>
> Is it possible, that Linux can't handle more then 1000 parallel
> connections? I don't hope so.
>
> Thanks for answering!
>
>
>  
>