-XX:[+|-]ReadIPInfoForRAS
Use this command-line option to enable and disable network queries from being used to determine the host name and IP address for RAS (reliability, availability, and serviceability) troubleshooting purposes.
Syntax
-XX:[+|-]ReadIPInfoForRAS
| Setting | Effect | Default |
|---|---|---|
-XX:+ReadIPInfoForRAS |
Enable | yes |
-XX:-ReadIPInfoForRAS |
Disable |
Eclipse OpenJ9™ captures the host name and IP address by default, for use in diagnosing problems. But if a nameserver cannot be contacted when a network query is made, the program will wait until the resolver times out.
You can avoid this situation by using the -XX:-ReadIPInfoForRAS command-line option to prevent the query from being performed.