CRIU Images Keep Deleted on mod_lsapi with CRIU & lsapi_with_connection_pool

[dinesh.solaiappan]

As understand, the idea of having CRIU enabled is to get lsphp process initiation faster. But on my server I see that CRIU images is automatically deleted every few minutes without any certain pattern.
The user that get CRIU image deleted experiencing slow lsphp process initiation like before I activated CRIU on lsapi.

How to configure CRIU to stay longer?

Below is what my lsapi.conf looks like:

lsapi_criu On

lsapi_reset_criu_on_apache_restart On

lsapi_backend_initial_start 3

lsapi_terminate_backends_on_exit Off

#lsapi_backend_max_process_time 300

lsapi_backend_max_idle 1800

lsapi_with_connection_pool On

[skhristich]

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