How Do that in jmeter by using JDbc or JSr223sampler,after completion of execution generate jtl/CSV results file,to take the results file particular values like samplers,average response time,90 percentage values and convert milli seconds and push to DB,how do the process tell me as soon as possible
Which DB? There is Backend Listener which have a couple of implementations, one of them - InfluxDbBackendListenerClient allows storing all (or specified) metrics into InfluxDB
See How to Use Grafana to Monitor JMeter Non-GUI Results - Part 2 for comprehensive steps on installation and configuration of JMeter and InfluxDB for real-time results storing
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I have a requirement where I have to load 1 million Telephone numbers from database and once that data is retrieved, need to call one REST endpoint using multiple threads. So I will load the data once and once data is loaded, use same dataset to hit rest endpoints concurrently.
I am a newbee to Jmeter and I am not able to figure out how to create thread groups to achieve this.
I would recommend
Using setUp Thread Group to load the data from the database, there add:
JDBC Connection Configuration to specify your database URL, credentials, etc.
JDBC Request Sampler to execute the query and save the results into JMeter Variables
JSR223 Sampler to write the results into a CSV file
Check out How to Retrieve Database Data for API Testing with JMeter article for example implementation.
Using normal Thread Group to create the concurrent requests:
CSV Data Set Config - to load the numbers from the CSV file so each virtual user would use the new number on next iteration
HTTP Request sampler to call your API
We are running performance tests using JMeter. In the Aggregate report we are able to view the minimum and maximum times. We now want to identify exactly which request from JMeter took the maximum time that was reported, so that we can perform a root cause analysis. So, how do we identify that request in JMeter?
If you run JMeter in command-line non-GUI mode like
jmeter -n -t test.jmx -l result.csv
it will generate CSV file containing all samplers statistics so if you sort by elapsed column in the timeStamp column using MS Excel or equivalent you will see the Unix timestamp so you can figure out the exact time when the "longest" request was fired:
Another option is adding a unique identifier like number of current thread, number of iteration, URL, whatever
it can be done using JMeter Functions or Pre-Defined Variables
Trying to compare the data/count between source and destination tables (SQL) as below through using CSV config in JMeter. is it possible to implement this way?.
CSV config in JMeter
just want to compare the count between STAGING and DW for all tables. any thoughts on this..?
Just define Variable Names so JDBC Request sampler could store the query execution output into a JMeter Variable like:
In first JDBC Request sampler define "Variable Name" as result1 (replace "SQL Query" with the relevant JMeter Variable name holding the value from the CSV file)
In second JDBC Request sampler define "Variable Name" as result2
That's it, now you will have the count of rows returned from the first JDBC Request sampler as result1_1 and from the second as result2_1
Now you can compare the values using Response Assertion configured like:
in case of mismatch the relevant JDBC Request sampler will be marked as failed and you will be informed about the differences:
More information: Debugging JDBC Sampler Results in JMeter
I am a Load Runner tester and would like to know how below requirements can be done in Jmeter.
Data parameterization - How can we implement unique and random data parameterization in Jmeter.
how do we get vuser id value for each virtual users in a Thread group?
If we need to initialize/load any data during vuser initialization (vuser_init() in load Runner) , how can we do it? Also, how do we call any function when vuser is ending, like vusr_end() in LoadRunner.
In Core JMeter:
For Data parameterization, use CSV DataSet , it will pick columns from CSV file and expose them as JMeter Variables you can use with ${varName}
To get user id, use jmeter function __threadNum()
There is no strict equivalent, for vuser_init you can use a Once Only Controller. For vuser_end, there is no equivalent
For parameterization:
CSV Data Set Config - for sequential data
Random CSV Data Set Config - for random data
HTTP Simple Table Server - for unique and random data, suitable for Distributed Testing (basically equivalent of the Virtual Table Server)
__threadNum()
Normally it is being done in:
vuser_init() - setUp Thread Group
vuser_end() - tearDown Thread Group
I want to simulate a few hundred http request each with a different token and userId which I have in a database table.
What's the best way of setting up a jMeter load test to do this?
You can use JDBC Sampler to extract you data from DB to create a CSV and a JSR223 Sampler using groovy (add groovy-all.jar in jmeter/lib folder) to write the extracted values to a CSV file.
Then in the real plan , use CSV DataSet Config using the generated file.
Depending on how you want to use the dataset, you will play with Sharing mode attribute.
If you want to do both steps within the same plan you can use a Setup thread Group that will contain the JDBC Sampler part to write the CSV File, this will use 1 thread and then
the other part in regular Thread Group that will use the number of users you need.
One way is to put all your parameters into a csv file and use CSV Data Set Config in jmeter. Right click on the thread you have created - add- Config Element- CSV Data Set Config. Remember you need to set the Number of Threads(users) to match the number of users in your CSV file.