![]() ![]() Please note “.” (Period) at the end of commands this will copy snapshot at currant directory.ġ) Copy Snapshot to your docker host docker cp :/root/Snapshots/MyApplicationOne-19.–08–18.snapshot. To do so you need to download snapshot at your local machine and import it into Yourkit application.įollow these steps to download snapshot at your local machine. Now you have the snapshot ready with you and you need to analyse it with the Yourkit application. You will also get the information about where Yourkit has Stored snapshot after Yourkit has finished taking snapshot in below format. Your kit store the snapshot in folder /root/Snapshots/. Run your use case and Capture Snapshot, Command to capture snapshot is java -jar YourKit-JavaProfiler-2021.3/lib/yjp-controller-api-redist.jar localhost 10001 capture-performance-snapshot Now Next Step is to Run your use case that you think has problem/Issue and capture snapshot to analyse with Yourkit application. ![]() Usage: java -jar yjp-controller-api-redist.jar where is one of: status capture-memory-snapshot capture-hprof-snapshot capture-performance-snapshot start-sampling start-async-sampling-cpu start-tracing start-call-counting stop-cpu-profiling clear-cpu-data start-alloc-recording-all // record all objects start-alloc-recording-adaptive // record all objects with size >= 4 KB, and only each 10th smaller object start-alloc-recording=, // record all objects with size >= bytes, and only each -th smaller object stop-alloc-recording clear-alloc-data print-alloc-object-count // get total count of all objects created during object allocation recording print-alloc-object-size // get total size in bytes of all objects created during object allocation recording in full mode start-monitor-profiling stop-monitor-profiling clear-monitor-data start-stack-telemetry stop-stack-telemetry force-gc clear-charts Examples: java -jar yjp-controller-api-redist.jar localhost 10001 capture-memory-snapshot java -jar yjp-controller-api-redist.jar localhost 10001 start-sampling java -jar yjp-controller-api-redist.jar localhost 10001 capture-performance-snapshot Then Yourkit profiler agent will start listing on localhost:10001.īelow are the list of commands that you can use with the Yourkit profiler. Once you enter the process id and hit enter then it will ask you for few more inputs but I recommend you to go with the default option and just hit enter. ![]() Now enter the Process Id that you wanted to attached to profiler agent. | 13| Not loaded Enter PID of the application you want to attach (0 to exit) and press Enter: Output of this command will look like this Enumerating running JVMs with /home/YourKit-JavaProfiler-2021.3/jre64 Log file: /root/.yjp/log/profiler-ui-3035.log Running JVMs: Name | PID| Profiler Agent - |-|- MyApplicationTwo | 82| Not loaded Myapplication-19.3-fat. Sh YourKit-JavaProfiler-2021.3/bin/attach.sh This command will list out all the java process ids running inside your docker container and will ask you to select the process id that you want to attach to profiler agent. Once you download Yourkit tool and extracted content then next step is to identify your java application process id and attaching it to Yourkit profiler agent. Run below commands to download and extract the tool. Then you need to download your kit tool in your docker container.Then ssh into your docker container and get access to docker bash with below command e.g docker exec -it bash. ![]() Then run below commands to list your docker container on docker host e.g docker ps.ssh to your docker container host with command e.g. ![]()
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