Not able to get Jmeter's processed requests in windump file.
We are trying to analyse performance bottlenecks for REST APIs for which needs to see each request processing cycle hence trying to collected windump and load it in Wireshark. However unable to get processed requests through Jmeter in the windump file. Below is the query used to collect the dump.
windump -i 7 -q -w D:\jm-re\dump_7 -n -C 30 -W 10 -U -s 0
Trying to follow as suggested in the below answer to analyse results.
how can we capture all requests going from JMeter running on Linux?.
REST API: HTTP POST request with token as header.
Steps followed:
Started collecting dump by issuing above command in Windows system> Run Jmeter 3.1 for 10 users> stop the dump collection> load the file in Wireshark> search for similar requests
Please guide if missing something while collecting data.
Able to get Jmeter requests captured in Windump and able to successfully loaded in Wireshark.
Command:
windump -i 5 -w D:\jm-re\dump_6_2
Thank you.
Related
I have a custom property file, which is read via
jmeter -q C:/Users/503289283/Downloads/eml_base.properties -t Service_Names.jmx
Same thing when executed in Non-GUI mode i.e.
jmeter -q C:/Users/503289283/Downloads/eml_base.properties -n -t Service_Names.jmx
Throws an undesirable message at the end of run
Script is running for a longer duration than it should. Output received is perfect.
Solving this could reduce the Test duration (Non-GUI mode).
Thanks for your support.
Regards,
Ajith
The "undesired" message you're getting is from jsch library which is reading some stream hence JMeter cannot gracefully terminate its threads because SSH connection is open.
So you need to take a look at what is being done on SSH/SFTP level.
I also fail to see any results in the output which means that no samplers have been successfully executed at all, check out jmeter.log file for any suspicious entries. You may also want to increase JMeter logging verbosity for the jsch library by adding the next line to log4j2.xml file:
<Logger name="com.jcraft.jsch" level="debug" />
I am using below shell script to execute JMeter from master machine and post execution of Jmeter i am triggering JMeterPluginsCMD.sh to generate jtl to csv file
for filepath in /tmp/scripts/*.jmx; do
filename=$(echo "$filepath" | sed -r "s/.+\/(.+)\..+/\1/")
echo "Running testplan ${filepath}"
resultpath="/tmp/results/testresult.jtl"
logpath="/tmp/results/log/testlog.log"
jmeter -n -t "$filepath" -l "$resultpath" -R"$SLAVE_IP_ADDRESSES" -
Jserver.rmi.ssl.disable=true -j "$logpath"
done
sleep 600
JMeterPluginsCMD.sh --generate-csv "/tmp/results/test.csv" --input-jtl
"/tmp/results/testresult.jtl" --plugin-type AggregateReport
sleep 600
Above code works fine with limited user load, but under high load when master does not receive below acknowledgment from slave.
021-05-18 06:37:02,457 INFO o.a.j.JMeter: Finished remote host: 10.1.1.1
It does not trigger JMeterPluginsCMD.sh.
What are the possible reasons of not receiving this acknowledgment. Is there any way to by pass the communication issue(JMeter Master->slave) and execute
JMeterPluginsCMD.sh with out any fail
If you "by pass the communication issue(JMeter Master->slave)" you won't get any results therefore it will be no sense in running your "JMeterPluginsCMD.sh".
So I would rather suggest
looking into the jmeter.log file on the slave machine and perhaps on the master machine as well, there is a chance you will be able to figure out what's wrong from the log
ensure that both have enough headroom to operate in terms of CPU, RAM, Network, Disk, etc. see 20 Command Line Tools to Monitor Linux Performance or just go for JMeter PerfMon Plugin
make sure to follow JMeter Best Practices
If your current slave machine is not powerful enough in order to conduct the "high load" you might need to add another slave and divide your "high load" by half.
I'm writing a batch file which is having several commands and giving output as given by each command. But, some commands are not working which is taking the code longer to execute. I want every command to be run for 10 seconds and if output does not come, then abort this command and run next command in batch file.
curl URL1
curl URL2
curl URL3
curl URL4
If URL2 is not working, it is taking a longer time to execute. I want every curl command to be checked for 10 seconds and abort and run next curl command.
Since you say you're writing a batch file I'm going to assume that you're using the Windows port of the cURL commandline utility, not the alias curl for the PowerShell cmdlet Invoke-WebRequest.
The cURL utility has 2 parameters that control timeouts:
--connect-timeout <seconds>
Maximum time in seconds that you allow the connection to the server to take. This only limits the connection phase, once curl has connected this option is of no more use. See also the -m/--max-time option.
[...]
-m/--max-time <seconds>
Maximum time in seconds that you allow the whole operation to take. This is useful for preventing your batch jobs from hanging for hours due to slow networks or links going down. See also the --connect-timeout option.
So you should be able to run your statements like this:
curl --connect-timeout 10 --max-time 10 URL
Yesterday due to some reason my Jmeter Machine crashed and I do not have results.
These results run overnight on a laptop, what I am looking for is, I can quit Jmeter ones tests are done and my reports get saved automatically.
Given you run JMeter in command-line non-GUI mode like:
jmeter -n -t /your/script.jmx -l /test/results.jtl
JMeter should store test execution results in the results.jtl file. When the test is finished you will be able to open the file with the Listener of your choice using "Browse" button and analyze the results.
Even in that case you can loose some data in case of JVM crash, by default JMeter doesn't store each single result, it periodically flushes results data. You can add the next line to user.properties file in order to tell JMeter to store each single result immediately (JMeter restart will be required to pick the property up):
jmeter.save.saveservice.autoflush=true
Alternative way is passing the property via -J command-line argument like:
jmeter -Jjmeter.save.saveservice.autoflush=true -n -t /your/script.jmx -l /test/results.jtl
See Listeners > Default Configuration to learn more about JMeter defaults, what properties are available and what can be changed to make results to look accordingly to your requirements
Run the JMeter always in Non-GUI mode.
Following is the command:
jmeter.bat -n -t Sctipt.jmx -l results.jtl
-l : option to save the results.
When the test is completed, automatically results will be saved in results.jtl file. you can give full path also, otherwise, saves the file in current directory i.e., JMeter folder where 'jmeter.bat' file present.
Don't keep any listeners in the script as they utilizes system resources.
I have a jmeter script which does a remote ssh and executes a R script now I need the jmeter to delay wherein it starts capturing results in the listeners after say 6 seconds how can I achieve that.
I don't think you'll be able to do it using JMeter Test Elements however you can insert a delay on SSH command level using sleep command like:
./your_R_Script && sleep 6
See How to Run External Commands and Programs Locally and Remotely from JMeter for more tips and tricks on how to kick off remote processes from JMeter