In one of my project we are searching for a vehicle number, it has to show the vehicle number exists or not.but i in the devtool i an not able to find the searched vehicle number.
Let's say I have searched for 5555 , 5555 should record as a parameter in JMeter load runner, even developper tools also it's not showing.
How can I handle this in JMeter.
Let's assume you start a transaction just before you submit your form with '5555' in it within the recording of loadrunner (either default sockets recorder or fiddler-based proxy recorder). You submit your form. You stop your transaction. You then complete your recording.
What do those requests between the start and end transaction markers look like?
If browser developer tools don't show the request it means that there is no request, most probably it happens on the client side only hence there is nothing to test with JMeter/Loadrunner there.
Or it might be hidden/filtered/using another protocol.For example this page won't show sent and received requests at the default view because they're happening in a single WebSocket connection and you need to switch to WS tab and then open Messages view:
The above website cannot be recorded with JMeter/Loadrunner, in JMeter you will need to use WebSocket Samplers and in Loadrunner web_webcoket_* functions
You can also consider using a more powerful packet capturing solution like Wireshark which can catch literally everything and look for your payload in the raw network packets. It will allow you to identify the network protocol.
And last but not the list: try recording your scenario in "porno mode" as it might be the case your application has cached the response and it's being returned from i.e. local storage so no actual network request is being made
Related
I recorded login and logoff requests using blazemeter. After the record nearly 10 request has been created by blazemeter, which some of them includes .../signalr/.../connectionToken labels.
when i run the test these labels return an error like and .
the test included 10 users. The users have different username and passwords. The other labels (another from these signalr labels) return true.
So, i wonder now if i can disable these pages and not include in the tests? or
any solution for this issue?
if i can disable these pages and not include in the tests
theoretically yes, you can ask around whether SignalR is in scope for performance testing and if not you could disable those, however I believe well-behaved JMeter test should act exactly like a real browser so if the real browser sends these requests to .../signalr/.../connectionToken - JMeter should also send them
or any solution for this issue
I don't think you can record and successfully replay anything in Web 2.0 times, the majority of web applications heavily use dynamic tokens for various reasons (saving client state, security, tracking, etc.). When you record the request you get a hard-coded value which can expire or invalidate by other means, you need to identify all the dynamic values like this SignalR token and perform correlation: the process of dynamic values extraction from the previous responses using suitable JMeter Post-Processors and re-using them in next requests in form of JMeter Variables or Functions
If you record the same user scenario second time and compare two resulting test plans all the request parameters which change will require correlation. There is also an alternative recording option which is capable of exporting recorded requests in "SmartJMX" mode with automatic detection and correlation of dynamic parameters, see How to Cut Your JMeter Scripting Time by 80% for more details.
I am facing this problem, and I suspect it is security related.
I am using Jmeter corelation recorder to record my scripts for testing,
I tried recording a search transaction in my application which is a document management system and as soon as I search(after Login) , it throws an error, while when I run the functionality manually it runs well.
Should I try forcing Jmeter to use my local proxy for recording or even playback(I have developed the script with Blazemeter extension as the Jmeter proxy recording was not working) ? The script however fails to playback the search transaction, server returns a 500 error.
I also see that Blazemeter extension has no problem recording the search transaction, which makes me suspect, that probably a security certificate is missing when I try recording via Jmeter proxy.
Correlation recorder doesn't do any magic when it comes to identifying dynamic elements and coming up with proper regular expressions to handle them, you still need to do it manually prior to starting recording.
With regards to JMeter recording failing: yes, you need to import the JMeter's certificate into the browser, this way JMeter will be able to intercept and decrypt HTTPS traffic, see HTTPS recording and certificates chapter of JMeter's documentation on HTTP(S) Test Script Recorder for more details.
If you add View Results Tree listener and see the responses, most probably your login fails somewhere somehow hence search fails due to your virtual user fails to login.
So make sure that
JMeter sends the same network requests as the browser does
all dynamic values are correlated
HTTP Cookie Manager is added to your test plan
given all above criteria are implemented you shouldn't experience any problems.
There is a 3rd-party solution: BlazeMeter Proxy Recorder which seems to be capable of automatically detecting and correlating dynamic parameters, if you're new to this concept - even if it won't resolve your problem fully at least it will give you some clue.
I'm trying to setup a performance test for a websocket application, using JMeter.
The request is {"type":"subscribe_rq","id":1,"ts":"2018-10-16T00:00:00","data":{"sinceSeq":0}}.
Response is multipart and sequential; initial response and an update every second, as long as the connection is open. (I checked this with "WebSocket Test Client", a chrome extension).
Currently, I only get the first main response, but not the updates. Rather not sure how to get these updates. How to achieve this in JMeter? That is, how to keep the connection open for a specified period (say 5 secs) and receive the multiple responses during that period and assert it?
To keep the connection open I have a Constant Timer with 5 secs in Thread Delay. Not sure if this will work...
Going forward please remember to include essential parts of your query into the question itself, i.e. output from the "Network" tab of the browser developer tools or screenshot of this WebSocket Test Client (whatever it is) could tell the full story.
In the mean time, there is a project: JMeter WebSocket Samplers by Peter Doornbosch which has many useful sample JMeter Test Plans including the one which you can use as the basis: Single read sample.jmx which queries the data in the loop over the single WebSocket Connection.
Check out JMeter WebSocket Samplers - A Practical Guide article to get started with the WebSocket Samplers.
We need to load test an web application using SignalR in few components with transport mode as long polling. My script gets hang in connect step. Connect step is GET- /signalr/connect?transport=foreverFrame&clientProtocol=1.5&connectionToken=ZW6cj17pImmCjGGBQSQNy%2Bdiy7DKDUy4i4R1AE78c%2FTitzS6QgiPoX6fM3zBOrDK11hyx0QNEc92JM6bsLY19MCt5JjaYFgdTDVsbxfnRbkqKp6dpsl64BV1zI8Vu1X%2F&connectionData=%5B%7B%22name%22%3A%22mypreviewhub%22%7D%5D&tid=10&frameId=1
I have correlated following 2 parameters- 1) captured connection token from negotiate step and used in subsequent requests
2) used ${__time()} for timestamp as found in link- How to capture signalR connection string in Jmeter
Apart from these, I can see 2 more parameters being send in connect step- tid and frameid. Do we need to correlate these 2 parameters as well, although these are not used anywhere else apart from connect step?
Or what is that my script lacking?
In various posts, I have seen suggestions to use websocket sampler plugins but I believe that can be helpful, if your SignalR use websocket mechanism, not long polling.
Please help me resolve this issue. Your help is appreciated. Thanks
As per How does long-polling work? answer:
Case: The server does not have any information available for the client when the request (poll) is received.
Behavior: Instead of sending an empty response, the server holds the request open and waits for response information to become available. Once it does, the server immediately sends an HTTP/S response to the client, completing the open HTTP/S request.
So your "hanging" might indicate that there is no data coming from the server.
You might want to check out 5 Ways to Load Test Popular Chat Plugins with JMeter article which assumes using Parallel Controller for implementing Long Polling scenario test, it even has an example test plan
In any case your test needs to replicate what real browser is doing so I'd recommend capturing requests which are being sent by JMeter and the real browser using a sniffer tool like Wireshark and if there are differences - amend JMeter configuration so the requests would be 100% matching the ones, originating from the real browser
This solution is for Load runner Users.
1.The tid does nor the frame id dosn't have to be parameterize. java script is randomly generated for TID FROM 1 to 11
Your time stamp is 12 digit random number
THE REASON FOR THE HANGING is that forever frame is an Asynchronous function of Signalr you must youse this statement to register a PUSH. If PUSH Doesnt work then do a POLL. lIKE SO
web_reg_async_attributes("ID=Push_0",
"Pattern=Push",
"URL=https://YOURurl.COM/signalr/connect?transport=foreverFrame&clientProtocol=1.5&connectionToken={CONNECTIONTOKEN}&connectionData=%5B%7B%22name%22%3A%22interactionhub%22%7D%5Dtid={TID}&frameId=1",
"RequestCB=Push_0_RequestCB",
"ResponseHeadersCB=Push_0_ResponseHeadersCB",
"ResponseBodyBufferCB=Push_0_ResponseBodyBufferCB",
"ResponseCB=Push_0_ResponseCB",
LAST);
Then modify your callback.c function
int Push_0_ResponseBodyBufferCB(
const char * aLastBufferStr,
int aLastBufferLen,
const char * aAccumulatedStr,
int aAccumulatedLen,
int aHttpStatusCode)
{
//Enter your implementation for ResponseBodyBufferCB() here.
lr_vuser_status_message("This is accumulated String %s", aAccumulatedStr);
lr_vuser_status_message("This is response body %s", aLastBufferStr);
Use Asyn option enabled next time in your recordings and you will see this stuff, but you must close the browser window at the end of your recording else the Async stuff won't be released and created in your script !! I found this out using Fiddler.
I am trying to setup a JMeter load test, using the Recording Controller.
This results in duplication of all the calls the web browser would make - including css files, js files and images.
Given that a web browser would get these concurrently (performing approximately 10 web requests concurrently). The jmeter documentation tends to equate 1 user to 1 thread - but this does not line up with the way in which modern web browsers work.
Do I need to use 10 threads for each user when setting up my load test?
Strictly Speaking, JMeter can't simulate a browser. JMeter has its own limitations, like not parsing .js files (as per 3.0 version), sending ajax requests from events etc.
But, for your question, there is support in JMeter.
So, you can specify the concurrent pool size as per your requirements, say concurrent pool size value set to 10, which would solve your issue.
Today browser normally sends requests concurrently and each browser has its own max value for maximum connections that can be made concurrently.
Refer following links:
Max parallel http connections in a browser?
and How to solve Chrome's 6 connection limit when using xhr polling.
When you use "Retrieve Embedded Resources" and set Concurrent Pool Size, you ONLY need to add parent sampler, which triggers resource requests like .css, .js files by Jmeter itself. (Eg: add only stackoverflow.com and it will load all the resources like .css, .js automatically). During recording , all these requests are seperately recorded, so you need to remove all of them or create a new plan/thread group containing only parent sampler.
Note: As I mentioned, requests triggered from .js, .csv won't be sent as Jmeter won't parse them like Browser. You need to add ONLY these requests as samplers explicitly. Add View Results Tree and compare the requests triggered by Jmeter and Browser (F12 -> Network tab) to know which request are missing by Jmeter.
First of all, don't record requests to embedded resources. If you click Add Suggested Excludes button the HTTP(S) Test Script Recorder will automatically populate a regular expression to filter images, scripts and styles.
Second. To simulate browser behaviour: 1 main request to the page and several parallel requests to retrieve content you can use "Advanced" tab of the HTTP Request Sampler (or even better HTTP Request Defaults). You can also limit embedded resources to your application under test domain there
Real browsers download images, styles and scripts. However well-behaved browsers do it only once, on subsequent requests these entities are being returned from cache. So make sure you add HTTP Cache Manager to your Test Plan to represent browser cache so you could avoid overwhelming your server with extra requests which don't happen in the reality.
See How To Make JMeter Behave More Like A Real Browser for more detailed explanation and instructions on using aforementioned Test Elements