I need to connect and send request for websocket from different IPs in jmeter to my singalR server. How can I do it. I know in case of HTTP request we can do that in jmeter by creating multiple IP addresses alias on the machine as mentioned in the link https://www.blazemeter.com/blog/how-to-send-jmeter-requests-from-different-ips.
How this process will work for websockets.?
Thanks.
It will not as the possibility to set outgoing IP address needs to be present in the WebSocket plugin you're using.
Currently available solution is to allocate as many machines as IP addresses you need and run JMeter in distributed mode. If a single machine is powerful enough you can kick off several JMeter slave processes there, keep in mind that:
you need to have these IP addresses (or aliases) defined at OS level
you need to bind the slaves to different ports
If you can do Java programming you can add it yourself, the project lives at https://github.com/ptrd/jmeter-websocket-samplers, somewhere here
If you cannot - you can ask the plugin developer to add this feature either via GitHub or try reaching out to him via JMeter Plugins Support Forum
Related
I am trying to invoke distributed load testing with jmeter (Which have 3 ips in it) and it is running in only one ip. Will other ips also run in the background or they won't even start?
If you have a Distributed JMeter Test architecture with 1 master and 3 slaves my expectation is that each JMeter slave has its own IP address so you should see requests coming from 3 different IPs to the system under test.
If you need to mimic more IP addresses - there is "Source address" section which lives under "Advanced" tab of the HTTP Request sampler where you can specify the desired outgoing IP address.
But be aware that the IP address (or its alias) must exist on the operating system level in order to be used at this field so you need to ensure that all source IP addresses you're going to use exist and are usable by JMeter.
Check out Using IP Spoofing to Simulate Requests from Different IP Addresses with JMeter for comprehensive information and example configurations
In my opinion, load tests should be performed from several different IP addresses simultaneously(because of restrictions on http). Am I right?
I will do load tests for:
Number of Threads (users): 2000
Ramp-Up Period (in seconds): 10
The load doesn't necessarily have to come from different IP addresses however depending on your application nature it might be required (for example application does explicit check of origin IP address or lives behind a load balancer with session stickiness based on IP addresses or whatever)
In this case you can perform IP spoofing so each request would come from the different IP address, you can configure source IP address under "Source address" input on the "Advanced" tab of the HTTP Request sampler
See Using IP Spoofing to Simulate Requests from Different IP Addresses with JMeter for more details.
Yes you can run JMeter locally, it can be run anywhere that has a Java Virtual Machine.
Another alternative if you are interested is Gatling http://gatling.io/
To perform load test in serveral different IP address use Jmeter remote test
control multiple, remote JMeter engines from a single JMeter client. By running JMeter remotely, you can replicate a test across many low-end computers and thus simulate a larger load on the server.
I have searched before writing this ... All i found is at certain point they are using load balancer hardware or software. But the thing i need is without hardware and Software can we do the load balancing ?.
While i was searching for this i came across the below statement.
"Another way to distribute requests is to have a single virtual IP (VIP) that all clients use. And for the computer on that 'virtual' IP to forward the request to the real servers"
Could you please anyone let me know how to do the Virtual IP load balancing?.
I have searched lots of article but i could not find anything related to VIP configuration or setup. All i found is only theoretical materials.
I need to divide the incoming requests into two applications. In this case both application server should be up and running.
Below is the architecture:
Application Node 1 : 10.66.204.10
Application Node 2 : 10.66.204.11
Virtual IP: 10.66.204.104
Run an instance of Nginx and use it as a load balancing Gateway for connections. There's no difference using virtual IPs to actual IPs - although it helps if your cloud setup is on LAN based IPs for both security and ease.
Depending on your setup there's two paths to go:
Dynamically assign connections to a server. This can be done on a split (evenly distributed) or on one instance until it fills up - then overflow.
Each function has it's own IP assigned. For example, you can configure the Gateway to serve static content itself and request dynamic content from other servers.
Configuring Nginx is a large job. However, it's a relatively well documented process and it shouldn't be hard for you to find a guide that suits your needs.
We are trying to create a simulation script where we need to send TCP packet data to the server in way that it appears to be coming from different IP every time.
Basically we need to emulate multiple devices ( with different IP) which are constantly sending data to the server.
The server creates a new connection only for request coming in from a new IP.
What is the best possible way to achieve it ? Is there a way of using proxy servers or some sort of virtualization to accomplish this ?
What you want to use is IP aliasing. This allows you to create virtual network interfaces. Each virtual interface can have one or more IP addresses assigned to it.
This link shows how to do it in Linux.
This link shows how to do it in Windows.
Next your clients need to specify which of your addresses to use. Use getifaddrs() to enumerate the available addresses. Then use the bind() system call on the socket before you do a connect(). This way you can have multiple clients and each one will use a different source IP address. This post has the details.
I'm running into some deployment issues using Akka remoting to implement a small search application.
I want to deploy my ActorSystem on a set of local cluster machines to use them as workers, but I'm a bit confused for what to put into my application.conf to make this happen. For example, I can use:
akka.remote {
transport = "akka.remote.netty.NettyRemoteTransport"
netty {
hostname = "0.0.0.0"
port = 2552
}
}
Each worker just runs the ActorSystem at startup.
This allows my worker machines to bind to their address when they start up, but then they refuse to listen to messages:
beaker-24: [ERROR] ... dropping message DaemonMsgWatch for non-local recipient akka://SearchService#beaker-24:2552/remote at akka://SearchService#0.0.0.0:2552
The documentation I've found for this so far only discusses deployment on my localhost, which is not so useful :). I'm hoping there is a way to do this without generating a separate configuration for each host.
Update:
Using an empty string as the hostname allows for contacting the host via the normal IP address. Addressing using the hostname itself doesn't work at the moment.
Setting “0.0.0.0” as host name will currently basically disable remoting, because that is not a legal IP to send to. Background: actor references get the configured IP (or host name) inserted in their address part when they leave the local system, and that is exactly their “pointer home” for other systems to send messages back.
There has been an effort by Scott which would enable a system to receive replies to a different address here, but that is not included yet—and we may well chose a different solution to this problem.