Follow-up: CPU poll threads ...

Would you please describe the difference between NET VPs and CPU VPs? And why is one better than the other? TIA. -----Original Message----- From: Art S. Kagel [mailto:kagel@bloomberg.net] Sent: Tuesday, October 27, 1998 4:22 PM To: informix-list@iiug.org Subject: Re: What means: CPU poll threads exceeds 'NUMCPUVPS' NETTYPE 'name' ......? > >From: dengelsen@my-dejanews.com > > > >Informix (7.23) produced the following error in the message Log File: > > > >CPU poll threads exceeds 'NUMCPUVPS' NETTYPE 'name' poll threads > started on > >NET VP's. > > > >What does this message mean? > >What must I do to solve it? It means that the number of connection names of a particular class times the number of poll threads specified in the corresponding NETTYPE entry, which specifies CPU VP listeners, is greater than the number of CPU VPs and so additional NET VPs were started up to handle the extra required listener threads. CPU VPs can each run only one poll thread. There for if you have: sqlhosts: server_n onipcshm myhost service_3 alias_1 onipcshm myhost service_4 alias_2 ontlitcp myhost service_5 onconfig: NUMCPUVPS 5 DBSERVERNAME server_n DBSERVERALIAS alias_1,alias_2 NETTYPE ipcshm,3,100,CPU NETTYPE tlitcp,1,100,CPU This specifies 5 CPU VPs but there are three server aliases (including the servername). The first two are shared memory and the ipcshm NETTYPE entry specifies 3 CPU class listeners for each which totals 6 listeners so a NET VP has to be started up for the last alias_1 listener. Also the tlitcp NETTYPE entry specifies class CPU but again all of the CPU VPs already have a listener going so a NET VP is started for that alias also. Art S. Kagel