I want to write a load test for my SSE endpoint which is written with Quarkus & JAX-RS. Because I want to make sure that my server can withstand at least 100 or more open SSE connections. I ask this question because the last question was some time ago. So what is the best way to achieve that in 2023?
Thanks for any help
Gatling tool has SSE support now
You can also consider using sse-perf project, see Load Testing Server Sent Event Streams
It's still possible to use Apache JMeter however you will need to write custom Groovy scripts like it's described in How to Load Test SSE Services with JMeter article
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I am trying to implement a simple client and server using standalone Asio (non-boost). I saw on this page (in the ducumentation):
http://think-async.com/Asio/asio-1.12.2/doc/asio/net_ts.html
that Asio is currently implementing the interface for networking that will be supported in the C++20 standard. I would like to use that interface for my application so that when the new standard libraries will be available, I will have just to change the headers and still have working application. So my question are:
1) Do you think is possible to use Asio with only the interfaces reported on the page?
2) If yes, could you show me simple code samples to do DNS resolution, connect (client), accept (server) and read/write operations (no asychronous stuff, only blocking)? Please indicate also the namespaces you used.
As a reference for the operations I want to perform (look under section echo and the non blocking client and server):
http://think-async.com/Asio/asio-1.12.2/doc/asio/examples/cpp11_examples.html
I am trying to write a small script that will help me automate some of my IT tasks regarding to VLAN management.
I do not want to log-in to my switch via command-line - I want to send commands to it and get response (over the NET).
Are there any alternatives? I have started to search the web but so far I did not found anything.
I know SNMP is an option to gain info but I want to check other alternatives
thanks.
You can try Netconf Configuration Protocol, it is RPC-like management protocol which is supported by Cisco and many other vendors.
SNMP is the only widely and commonly used option here.
You can use WMI to manage Windows-based infrastructure.
There is also legacy SYSLOG protocol (RFC3164) which is UDP based.
For traffic monitoring and billing purposes there are NetFlow,
sFlow, jFlow, IPFIX and RADIUS protocols.
There are some other protocols but mostly proprietary.
So I'd suggest using SNMP which is nowadays a de-facto standard in network monitoring domain.
You might look at Expect as a scripting language solution. It is commonly used to do exactly what you are needing:
log into device (with result cases)
execute commands
save config
logout
As you build out a script library, tasks become simplified as you could do things like run scripts with parameters and have Expect do all the detail work.
See the wikipedia article for an overview.
I have also used SNMP for this kind of thing but the functionality is different because you are using an SNMP read-write privilege to upload new parts or complete configs, saving the running config to flash and/or saving the config off-device.
Try NETCONF+YANG protocol because it is currently the best option for network device configuration. More about SNMP alternatives:
https://bestmonitoringtools.com/top-snmp-alternatives-because-snmp-is-dying/
I am trying to do a loadtest on QC11.5 application using Neoload, While recording request are being captured but response body not been stored.
<<body not stored by Neoload >> Error
please help to resolve this issue
Hum... It sounds like a well-known project ;> Here is a summary for the other readers. Hewlett Packard Quality Center 10 or 11 is not a "full" web application. It is kind of local application, installed through Internet Explorer with .cab and .ocx using a HTTP tunnel. The problem to load test it is that the dialog sent by this fat client is fully encrypted. For NeoLoad, an encrypted conversation (over HTTP or HTTPS) is considered as binary and it is not stored in the design. But it is clearly showed in the "Check VU" step. Here we speak about an "alien" encrypting service on top of standard services like SSL, where NeoLoad performs well.
For the readers, to put it in a nutshell, QC cannot be load tested with a network-based approach, like all the majors and professional load testing tools do. Here it is one of the rare situations where a synchronized functional test could be the solution... with hundreds or thousands of desktops.
I'm planning on writing a control panel for Minecraft in Rails but I don't have much experience with Java at all, Minecraft seems to have some standard remote connection and query tools, but most conventional panels don't seem to use them. For example with McMyAdmin, I have disabled remote connectiona and the query, but it still seems to be able to communicate with the server after restarting it after I've edited the server configs to disable the settings.
What I'm asking is if anyone knows how McMyAdmin communicates with the Minecraft server, it comes with a plugin, but I've deleted that as well and it still seems to be able to communicate with the server, I know McMyAdmin is written in .NET and I believe it uses Mono as it's server, as it's cross platform.
If anybody could shed some light on this I'd be ever so greatful, just trying to get my head around the communication.
McMyAdmin uses the plugin to open a socket that it can interact with(Not sure which features are provided using this plugin). The rest of the features are just from the Process instance that it creates. It also just edits the config files for a few things as well or runs commands using the input stream of the process.
I have a server and some clients (about 50) in an intranet. The clients send short (about 40 character) string data to the server and the server answers with a similar string. There are up to (but not permanently) 2-3 requests per second for each client. The server has to serialize the requests to get the response strings.
The system should have as less as possible impact on the network as possible (i.e. the server may run something like a webserver already). It should be as easy to install and administer as possible.
What are the possibilities to achieve this using Delphi (Client: D7, Server up to D2010)?
I use the Synapse library for such a simple server. Its lightning fast, very light, and threads easily. The demo Echo in the main synapse install is a fantastic start for what your trying to do. If you are going to be performing database access inside each request/response thread then I strongly also suggest looking at the connection pool example by Cary Jensen to keep your database connections in check.
TCP, definitely. But I'd like to give a vote for ICS. Never liked Indy ...
What about Indy's TIdTCPServer and TIdTCPClient? They provide command handlers, which makes implementing text-based protocols very straight-forward.
There are a lot of options.
Ultimately, I agree with Smasher and like using sockets. They're quick, easy and portable. If you're dealing with a fairly simple protocol and don't need a full n-tier solution, creating a TCP or HTTP server application is dead simple, very light weight, and easy to make compatible with any client. You can even add SSL support to these stand alone applications without having to configure a web server or interfering with it, if it's already running on the same box.
I use RemObjects SDK for this sort of purpose. It takes care of all the difficult stuff, and I just ask it to connect and make function calls to pass the data.