Symptom:
It is possible after a very long period for the server to stop functioning, requiring a restart.
Problem:
There is a slow handle leak in exacqd introduced in server version 9.5.25/9.6.0. This handle is never used, so a slow memory leak is the result.
Windows has a limit of 16 million handles. A server that leaks 3 handles a minute would take 4 years to hit this limit. A server with many LDAP users always connected would hit this limit sooner.
Solution:
Current workaround is to downgrade to 9.4. Future versions should include fix.