If i create an environment variable will it exist in all flows within the execution group? I need to have a value which has to be shared between two flows in the same execution group.
Nope. The environment variable has its scope set for a particular flow. If you want to share a value between two flows, either you will have to pass it on as a message or use User defined properties (UDP) to set it to all flows in the execution group.
Related
I have a scenario of Creating 10 objects, Reading the 10, Updating and Deleting the same objects.
I am using a CSV file for the request,test data, response verification.
I will be receiving a token on creating a object, and am i have no idea on how to store the tokens of 10 created objects and use the same token for GET,UPDATE and DELETE operations.
Note : I have tried to store single token in a variable but am not aware of storing multiple variables and accessing them.
Need inputs on this, Thanks in advance
According to JMeter Functions and Variables User Manual Chapter
Properties are not the same as variables. Variables are local to a thread; properties are common to all threads, and need to be referenced using the __P or __property function.
So if you extract some value into a JMeter Variable in setUp Thread Group and plan to refer it from the other Thread Group(s) you need to convert it into a JMeter Property using __setProperty() function
See Knit One Pearl Two: How to Use Variables in Different Thread Groups article for more details if needed
Good day, guys!
What I attempting to do is perform a clean logout for all users after test stops running via duration restriction.
In my case, when user logs in, he gets unique session id parameter that makes it impossible to log with same user from different tab/browser/place, so I need to be sure that user is not blocked after my test completes.
Lets say I use 100 users for a test.
My test looks something like:
Login (get session id)
do stuff
do stuff
Logout (terminate session)
It works fine when I use a constant set of loops, but when I run test with duration, for example, 600 seconds, test stops in the middle after time runs out and my users are blocked until their sessions expire by timeout.
I tried to create a second thread which also contains 100 users and only a logout HTTP sampler, passed and used session id variable to it as described in article https://www.blazemeter.com/blog/knit-one-pearl-two-how-use-variables-different-thread-groups but it seems that my second thread receives only a last session id value so it basically logs out 1 user 100 times, but I need to log out 100 users 1 time.
Does anyone now how to store multiple values of a variable and use them in correct order in other threads?
Not a programmer, just a manual tester with some extra responsibilities.
Thank you.
JMeter Variables are local to each thread, JMeter Properties are global for the whole JVM so if you're passing variables between thread groups make sure you add current thread number as a prefix (or postfix) for the generated property, something like:
In the first Thread Group define user-specific property using __setProperty() and __threadNum() functions combination:
${__setProperty(foo_${__threadNum},${YOUR_VARIABLE_HERE})}
In the second Thread Group get user-specific property using __P() and __threadNum() functions combination:
${__P(foo_${__threadNum},)}
Replace foo with the property name of your choice
Replace YOUR_VARIABLE_HERE with the name of the relevant JMeter Variable
Demo:
See Apache JMeter Functions - An Introduction to get familiarized with JMeter Functions concept.
I know we can set max jobs and flow limit on a TIBCO starter process but is there anyway of explicitly setting it on a sub-process (non starter process)?
Max Jobs and Flow Limit can only be set on process starters or on spawned subprocesses. Flow control on regular (i.e. non-spawned) subprocesses is determined by the parent process starter's configuration and cannot be overridden.
If you want to be able to control the flow of a subprocess, I see 2 options:
Make it a spawnable process.
Make it an independent process with its own process starter (e.g. JMS Queue Receiver) and have the parent process invoke it with the
appropriate protocol (e.g. JMS). This way you can control the
process' flow control as you would do with any process starter.
I agree with Nicolas. However if for example let say that your flow allows 10 jobs max. to enter but then you want one job at a time to get executed, you could use a "Critical Section" to make sure only one job access the resources at any given time. (This is an example only)
"Critical section groups are used to synchronize process instances so that only one process instance executes the grouped activities at any given time. Any concurrently running process instances that contain a corresponding critical section group wait until the process instance that is currently executing the critical section group completes.
Critical Section groups are particularly useful for controlling concurrent access to shared variables (see Synchronizing Access to Shared Variables for more information). However, other situations may occur where you wish to ensure that only one process instance is executing a set of activities at a time. "
Hi merged two thread groups in to single test plan and have two User defined variable element for them
In both User defined variables I have a variable called rubyUrl which has different value in each thread group
when I execute the test plan together I am facing Issues because of the variable name conflict between
two different thread groups
please help me how can I tell Jmeter that It should pick the variable from which thread group
Your finding is correct but the reason behind it is different.
User defined variables (a config element) are initialized and processed as soon as the test is started i.e. if you have three different User defined variables elements with same variable name but different values in three different thread groups then even before the thread groups are executed all the user defined variables are initialized hence the last processed value will only be retained.
On the other hand if you use a user parameters element (a pre-processor) it is initialized and processed just before that thread is executed. So if you have three different User defined variables elements with same variable name but different values in three different thread groups then each time the thread group is executed the value is processed.
!!!!!!!!!!Eureka Found solution for this Problem!!!!!!!!!
we can go for an Pre-processor in Jmeter like User-parameter
since User Parameter is individual to single thread group unlike User defined variable which is common to a test plan
Add variables with the same name in the user defined vaiables and add it in each thread group.
Is there any other better way to do this thing,as always in java one thing better than other comes our way :)
I am aware of the BUILD_NUMBER environment variable; however, unless I'm mistaken, this is a global variable which appears to be shared among all projects. This is a problem since, if I have two agents running jobs, one script may try to use the current project's build number after another script has updated it for a different project.
Here is an example scenario:
Job J1 starts, executing some script S. BUILD_NUMBER is currently, let's say, 500.
Someone manually starts job J2, which now sets BUILD_NUMBER to something completely different, say, 750.
Script S, which is still running, now reaches the point where it actually uses BUILD_NUMBER, now set to 750 (an impossible value for job J1, which is only up to 500).
Am I correct in this understanding? If so, how do I address this problem?
BUILD_NUMBER is not global to the system. It's local to each job. In your example, J1 and J2 will have different BUILD_NUMBER (J1=500, J2-750) values and they will remain constant - within the job - for the duration of the job.
You can get the latest (completed or currently executing) build number with:
http://[JENKINS_URL]/job/[JOB_NAME]/lastBuild/buildNumber
or from within the job itself, you can use environment variable:
${BUILD_NUMBER}
You can use all other permalinks too, like:
/lastStableBuild/
/lastSuccessfulBuild/
/lastFailedBuild/
and so on.
Unless you are customizing your build number with a plugin such as Next Build Number, your next build number will always be an increment to the latest build number.
The build numbers are per job. They are not global environment variables.
Every time any job is executed, it copies/inherits existing environment variables into a new session. Jenkins/Hudson then adds all job parameters and extra variables (including ${BUILD_NUMBER}) to that new session. They are available as environment variables only for the duration of that session (i.e. for the duration of the job run). Once the job completes, this session is destroyed (along with all the extra variables that were generated for the session).
You cannot access the environment variables of one job-run/session from another job-run/session. You can however access the /lastBuild/buildNumber of another job through the URL method I provided. You can also access /lastBuild/buildTimestamp the same way.
To access job parameters of another job, you can use:
http://[JENKINS_URL]/job/[JOB_NAME]/lastBuild/api/json
or
http://[JENKINS_URL]/job/[JOB_NAME]/lastBuild/api/xml
but you would need to parse the output for what you need.
Use the Get Next Build Number plugin.
https://wiki.jenkins-ci.org/display/JENKINS/Next+Build+Number+Plugin