Default NATS port is already in use

Affected versions

From DataMiner 10.1.0/10.1.1 onwards

Cause

IP port 9090, which is used by default in a DataMiner System for NATS, is already being used by a third-party software, such as the Keysight Agilent IO Libraries.

Fix

Manually configure a custom port for NATS. See Investigating NATS issues.

Issue description

• DataMiner will not start.

• NAS is running.

• NATS is stopped.

• Several 2kB large log files can be found in the C:\Skyline DataMiner\NATS\nats-account-server folder.

  Note

  The number of log files in this folder can increase rapidly (over 30,000 files in 12 hours).

  The log files contain the following entry:

  listen tcp 0.0.0.0:9090: bind: Only one usage of each socket address (protocol/network address/port) is normally permitted.