None...only the oracle background processes (threads in Winblows) access the datafiles/logfiles etc. All other communication is done through the SGA. On some Unix variants you _can_ reach a file_open max kernel parameter because each process (in a dedicated server scenario) opens it's own stdin/stdout/stderr. I guess the same could be true of processes running under windows too. So in the limit...you could hit a wall but only due to the per-process overhead.
Cheers Jeff Herrick On Fri, 29 Nov 2002, Grant Allen wrote: > Saw an interesting post in comp.databases.oracle.server postulating that if > a shadow thread needed an open file handle on all files in a instance (or > even some of them), the process handle limit in windows could constrain user > scalability (e.g. too many users would result in ora-12500 unable to spawn > errors and the like). (Let's ignore MTS/shared server mode for the moment) > > Sounded interesting, but I thought I'd ask if anyone knows whether a shadow > thread (or process under unix) does open a handle on each file (control, > data, redo), some of them, or none of them? > > Ciao > Fuzzy > :-) > > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: Grant Allen > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com > San Diego, California -- Mailing list and web hosting services > --------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). > -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jeff Herrick INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
