Signals

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You can send a signal via the unix "kill" command on either Linux or Mac, and cause a project running in the background to save a recover file of the project in the exact state it is currently in, which can then be loaded and inspected to see what is going on. The project should continue running after processing the signal.

All three of the following signals cause the recover file to be dumped:

  • USR1, USR2, ALARM

In a unix-like environment, you typically find the process ID (PID) from a "ps" command, e.g.: 

 ps uaxwww | grep emergent

-- the PID is usually the number right after the user name, and then you send the kill signal to that PID: 

 kill -USR1 <pid>

The recover file should show up in the directory where the project was launched.

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