Rider is hanging - not responsive. Frontend thread dumps (jstack dump)

Question:

Rider UI is completely unresponsive. How to collect frontend thread dumps for troubleshooting the freeze?

Answer:

Collect a thread dump using jstack utility if Rider does not respond to any actions for a long period of time:

1. Open {ide_installation_path}/jbr/bin in a terminal. (MacOs path: {ide_installation_path}/Rider.app/Contents/jbr/Contents/Home/bin/);
2. Find the Process ID (PID) of the "JetBrains Rider" process ( rider64.exe or rider ); Note: Either use OS processes monitor (Activity monitor/Task Manager) or get the PID from the .\jps.exe -l command output. The number next to the com.intellij.idea.Main is the PID of the Rider frontend process;
3. Invoke .\jstack.exe -l {PID}>dumpN.txt (MacOs/Linux: ./jstack -l {PID} > dumpN.txt ) with N in 1..5;
4. Attach the generated dump1..5.txt files to your issue or support ticket;

A dump should be taken exactly at the moment when the IDE is not responsive.

Note: If the IDE is responsive, see Rider is slow. Frontend performance snapshot