Hi Farid: > > > The application that I want to test has IP based load balancer.
Just wanted to add: is this IP load balancer a DNS-based load balancer by any chance? (e.g., DNS round-robin) There can be issues with JMeter and DNS-based load balancers. The problem is the Java underneath JMeter caches DNS name resolution. So when a JMeter instance starts up, the target DNS entry is initially resolved to one IP address, and further JMeter requests become 'sticky' to that IP address. The workaround is use a Java flag to disable/minimize DNS caching. Note: this problem does not exist with a hardware-based (non-DNS) load balancer that 'fronts' multiple systems with a single IP that never changes. Regards, Sonam Chauhan -----Original Message----- From: Manish Sapariya [mailto:[email protected]] Sent: Wednesday, 4 February 2009 12:10 AM To: JMeter Users List Cc: [email protected] Subject: Re: JMeter IP Spoofing sebb wrote: > On 03/02/2009, uzfarid <[email protected]> wrote: >> Hello, >> >> The application that I want to test has IP based load balancer. From what I > > Which is probably not going to work very well if it will be accessed > from behind a NAT router. > >> understood is that Jmeter does not have IP spoofing. > > No, it does not. > > But if the JMeter host has multiple IP addresses, and you use the > HttpClient version of the HttpSampler, you can use a property > > httpclient.localaddress You can use aliasing to create multiple IP addresses on your machine using instructions specified here along with the flag above. http://www.webperformanceinc.com/support/suite/manual/multiple_ip_addres ses.html Ability to use local address looks very handy though I have not used. Following link discusses how to achieve same using watir, just in case you need details what I am talking about. http://groups.google.com/group/watir-general/browse_thread/thread/5301f2 f56c0174e6/85578e4ab5d04042?lnk=gst&q=fake#85578e4ab5d04042 Regards, Manish --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] The information contained in this email and any attached files are strictly private and confidential. This email should be read by the intended addressee only. If the recipient of this message is not the intended addressee, please call Corporate Express Australia Limited on +61 2 9335 0555 or Corporate Express New Zealand Limited on +64 9 279 2555 and promptly delete this email and any attachments. The intended recipient of this email may only use, reproduce, disclose or distribute the information contained in this email and any attached files with Corporate Express' permission. If you are not the intended addressee, you are strictly prohibited from using, reproducing, disclosing or distributing the information contained in this email and any attached files. Corporate Express advises that this email and any attached files should be scanned to detect viruses. Corporate Express accepts no liability for loss or damage (whether caused by negligence or not) resulting from the use of any attached files. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
