Environment Variables

SHM_LOCK_DIR

If the SHM_LOCK_DIR environment variable is set, OSRM will use it as the directory for shared memory lock files instead of the system temporary directory. This is useful in containerized environments (Docker/Kubernetes) where the lock file directory should persist across container restarts when loading from shared memory.

SIGNAL_PARENT_WHEN_READY

If the SIGNAL_PARENT_WHEN_READY environment variable is set osrm-routed will send the USR1 signal to its parent when it will be running and waiting for requests. This could be used to upgrade osrm-routed to a new binary on the fly without any service downtime - no incoming requests will be lost.

DISABLE_ACCESS_LOGGING

If the DISABLE_ACCESS_LOGGING environment variable is set osrm-routed will not log any http requests to standard output. This can be useful in high traffic setup.