Two default configuration options have daemons dropping information about how they can be contacted into the local file system on a machine.

<SUBSYS>_ADDRESS_FILE
<SUBSYS>_DAEMON_AD_FILE

These files mostly represent an optimization - they let tools on a local machine avoid contacting the Collector to communicate with daemons on the local machine.

When a tool, such as condor_q, tries to locate the Schedd it consults SCHEDD_ADDRESS_FILE and SCHEDD_DAEMON_AD_FILE. In a HA Schedd setup those files may be stale. The result is condor_q fails to find the Schedd, which it could easily locate with a lookup in the Collector.

Two possibilities: 1) make the tools fall back to doing a Collector lookup, 2) disable the cache files

However, this is mostly an issue with the HA Schedd. So it would also be possible to just put the SCHEDD_ADDRESS_FILE and SCHEDD_DAEMON_AD_FILE into the SPOOL, which is shared in a HA setup.