Returns the host-name prefix (hostname:) used to match any session previously hosted
by this OS host, regardless of which boot created it. The janitor uses this to find rows
that belong to this host but to a different (older) boot — i.e. crash/redeploy orphans.
Returns the host-name prefix (
hostname:) used to match any session previously hosted by this OS host, regardless of which boot created it. The janitor uses this to find rows that belong to this host but to a different (older) boot — i.e. crash/redeploy orphans.