I am new to JMeter. I want to make MySQL connection to database so I can calculate the time that took to upload an audio and it is inserted in the database. I am trying to upload audio to my API and when the audio uploads then it go for background processing and then it is inserted in database. I am doing load testing when I hit this API it returns success when it go for background processing. But I want to calculate time taken by when I upload audio and it is inserted in database. How can I do it?
I would do it as follows:
Transaction Controller - to measure time of all nested samplers
HTTP Request to upload file
While Controller to loop until postprocessing is finished
JDBC Request - to check your mysql database
When the upload completes, insert a record for the given content with current time. Then Pass this new record's ID to the background job so when processing is finished it can update the same record and insert current time again. Here you go, compare the 2 times...
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I have created a graphQL Realtime server and client reading values using useSubscription hook. Can anyone tell me please how to create a delay of few seconds to read the values.
Right now on the server side, I have created a change stream on a mongoDB collection and whenever an object is inserted into that collection it pushes the data to graphql subscription and the client receives it, The problem is the process which enters the data is inserting too many values in one second and i need just the most latest one and probably most latest with 5 seconds. So I need to create some sort of delay either on server side or client side.
I am trying to run the performance script which has API which takes the payload as file from S3 and submit to target system. After the request is completed I need to login to db and verify the status of the transaction. Here there is delay in getting inserted to db which is fast for payload with small file size. As I started submitting large files 1 GB to 15 GB, there will be delay in inserting a table.
So the JDBC request which has modified_date will be null for large payload. I have used constant timer but not sure how long it takes to insert in table.
Is there any way I can make jdbc request to wait till i get result for modified_date for message table.
You can put your JDBC Request sampler under the While Controller and use i.e. following jexl3() function as the condition:
${__jexl3("${modified_date}" == "null",)}
Once done you can use the Constant Timer for introducing the reasonable delay, i.e. run the JDBC Request each second or several seconds until the result is there.
More information: Using the While Controller in JMeter
I am trying to compare the performance difference between DELETE batch sizes using JMeter.
I have a table which I populate with a large amount of test data. Next, I have a JDBC Request that runs the following statement:
delete from tbl where (entry_dt < '2019-02-01') and (rownum <= 10000);
I want to keep running this until the table is empty, and record the time taken to clear the table.
I will run this thread multiple times to get an average execution time, and repeat this process for different batch sizes.
How should I define my While Controller to achieve this?
I read from other sites that I can use a Transaction Controller to time my process, but I am not familiar with this feature. How should I define my Transaction Controller to achieve this?
Add Transaction Controller to be a top level test element under the Thread Group
Add While Controller as a child of the Transaction Controller and use the following condition expression:
${__jexl3(${count_1} > 0,)}
Put your JDBC Request sampler as a child of the While Controller
Add JDBC PostProcessor as a child of the JDBC Request sampler and configure it like:
That's it, While Controller will iterate until there are entries in the tbl table and the Transaction Controller will record the cumulative time of all JDBC Request samplers executed.
I would do it this way:
Use the "JDBC Request - Get Count" sampler to get the data from the db which has to be deleted
Use a BeanShell Assertion to check if there is more data that can be deleted. Otherwise stop the thread
Execute the request to delete the data
Thread Group should stop Test on error
For example If i test a Master web page for 100 users by inputting values , will the Master table be updated with the 100 records?
Does Jmeter insert records into Database when we a web page performance test?
If your application is designed to store the data in the DB whenever someone enters the data in the UI, then , yes, when you do your performance test using JMeter, the data you had entered will also get stored in the DB.
JMeter does not store the data into the DB itself. Whatever the action you do on the website, JMeter records it & repeats for 100 different users (whatever the usercount you give). So, if you had recorded script correctly & it works fine, you should be able to see the data in your DB.
I have a JSP page, lets say events_index.jsp that gets all the events in the system. i am using spring MVC pagedListHolder to implement pagination. do i need to store the data source in request or session. if i store it in session, new events created will not come into list unless i close the browser before creating a new event. If i store in request it fetches entire data from database every time as it cannot find data in next request object. i need data to retain only between events_index.jsp requests only but not entire session.
any suggestions?
What I understood from your question you need to show latest data everytime you paginate?
Even you are paginating in same page for every next or prev , there is a http request goes to server and as per pageSize and offset setting server returns data.
so this happens for every request and you will get latest data.
If you store paging data in session and serve the subsequent request from session you may not have latest state of data.
So I suggest use request to show latest data [may hit performance]
use session to show data[may not show latest data]