Unable to Kill a Process Due to "No Such Process" Error

Processes in a chassis cluster setup have different process IDs for specific nodes (e.g., node0 or node1). If you try to kill a process from the wrong node, you will receive the error message "No such process" because the process is running on a different node, not the one you're currently logged into.

Example:

{primary:node1}
root@jtac-srx4100-r2025> show system processes extensive |match mib2d
22493 root         20    0   761M    23M select   1   2:14   8.00% mib2d
14151 root         20    0   763M    36M select   1   2:30   0.00% mib2d

{primary:node1}
root@jtac-srx4100-r2025> start shell
root@jtac-srx4100-r2025:~ # kill -9 22493
22493: No such process
root@jtac-srx4100-r2025:~ # exit

{primary:node1}
root@jtac-srx4100-r2025> request routing-engine login node 0
Last login: Wed Dec 11 11:14:27 on ttyu0

--- JUNOS 23.4R2-S3.9 Kernel 64-bit  JNPR-12.1-20240604.39c9257_buil
root@jtac-srx4100-r2025:~ # cli
{secondary:node0}
root@jtac-srx4100-r2025>

{secondary:node0}
root@jtac-srx4100-r2025> start shell
root@jtac-srx4100-r2025:~ #  kill -9 22493
root@jtac-srx4100-r2025:~ #