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ORA-12152: TNS:unable to send break message on database link to an autonomous database

Tor
Tor Member Posts: 49 Bronze Badge

Hi! I have a Oracle 18XE DB running on an Oracle Enterprise Linux server in Azure (Virginia). I also have an autonomous database running in the Oracle Cloud in Ashburn (also Virginia). I crated a DB link from the XE to the autonomous database. Most of the time the link works great but sometimes it just grounds to a halt, queries freeze and eventually fail with ORA-12152: TNS:unable to send break message. These are simple, normally sub second queries.

Any tips to help troubleshoot is greatly appreciated.

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