concurrent connections to Informix Dynamic Server 7.3...

Hi, We're using the ESQL/C 9.15 coming with the ClientSDK 2.02 to develop programs running againt Informix Dynamic Server 7.3 on Solaris 2.6. When we tried to open more than 49 or 50 concurrent connections to the server side, the client program just died and output some error messages. Sometimes the server even looked like hanging up there... We got two different kinds of error messages, error code: 7 error message: [VENDORLIB] Vendor Library Error: Cannot create an user thread. On NT check username, and IXUSERS group. vendor error 1: -25571 vendor error 2: 0 vendor message 1: vendor message 2: Not connected 50 The other one seemed like the "memory allocation failed..." message... Do we have to tune any Informix Sever or OS parameters? We appreciate your precious opinions... - Steve

In article <36ac8a6c.30551120@news.supernews.com>, steve@interworld.com wrote: > Hi, > > We're using the ESQL/C 9.15 coming with the ClientSDK 2.02 to > develop programs running againt Informix Dynamic Server 7.3 on Solaris > 2.6. When we tried to open more than 49 or 50 concurrent connections > to the server side, the client program just died and output some error > messages. Sometimes the server even looked like hanging up there... > > We got two different kinds of error messages, > > error code: 7 > error message: [VENDORLIB] Vendor Library Error: Cannot create an user > thread. On NT check username, and IXUSERS group. > vendor error 1: -25571 > vendor error 2: 0 > vendor message 1: > vendor message 2: > Not connected 50 > > The other one seemed like the "memory allocation failed..." > message... > > Do we have to tune any Informix Sever or OS parameters? > > We appreciate your precious opinions... > > - Steve > > Sounds like you are probably running into the default NETTYPE ceiling for number of concurrent connections. Read up on NETTYPE in reference to client/server communication in any of the 7.xx Dynamic Server administrators guides. Once you've come up with some reasonable NETTYPE values for your particular client/server environment, configure the NETTYPE parameter(s) in your server onconfig file and bounce the engine. -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own