Last updated on JULY 17, 2017
Applies to:Oracle Net Services - Version 184.108.40.206 to 220.127.116.11 [Release 11.2 to 12.1]
Oracle Database - Enterprise Edition - Version 18.104.22.168 to 22.214.171.124 [Release 11.2]
Oracle Database - Enterprise Edition - Version 126.96.36.199 to 188.8.131.52 [Release 12.1]
Information in this document applies to any platform.
NOTE: At the time of this writing, the problem documented here is reproducible only in RDBMS version 184.108.40.206 and 12.1.
The following error is being intermittently returned to the client: ORA-12592 TNS: Bad Packet. The Alert.log might also show an ORA-3137 . Enabling Oracle Net tracing at either the client or the server might clear the error in some cases. Once tracing is turned off, the error will likely return.
In the case of a dblink where a recent upgrade to either of these versions took place, the following errors might start appearing:
ORA-02050: transaction 12.113.80208 rolled back, some remote DBs may be in-doubt
ORA-03150: end-of-file on communication channel for database link
ORA-02063: preceding line from MY_LINK
This may have started after a recent upgrade to database version 220.127.116.11 or a new installation of 18.104.22.168 or 12.1.0.x
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