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<txt>TNS-12537: TNS:connection closed TNS-12560: TNS:protocol adapter error TNS-00507: Connection

edited Feb 23, 2021 9:41PM in Database Networking (MOSC) 3 commentsAnswered

I am getting the below error in my listener log.

===========

<txt>TNS-12537: TNS:connection closed

 TNS-12560: TNS:protocol adapter error

 TNS-00507: Connection closed

  Linux Error: 115: Operation now in progress

========================

my database version is

Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production

==========

what would be the possible cause of this issue and workaround

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