TNS-12637: Packet receive failed

Hi,

Sometimes You can get “TNS-12637: Packet receive failed ” error.

 

Details of error are as follows.

TNS-12637: Packet receive failed
Cause: A process was unable to receive a packet from another process. Possible causes are:1. The other process was terminated.

2. The machine on which the other process is running went down.

3. Some other communications error occurred.

Action: If the cause is not obvious, contact Oracle Customer Support.

 

 

 

This error is get during recent upgrade to 12c database.

firewall’s “Advanced SQL features”, in this case, SQL ALG (Juniper firewalls)

Disabling the  SQL ALG on port 1521 at the Juniper Firewall resolved this issue.

Please notice there are other similar firewall features like

– SQLNet fixup (protocol)
– Deep Packet Inspection or DPI
– SQLNet packet inspection

 

Do you want to learn more details about RMAN, then read the following articles.

https://ittutorial.org/rman-backup-restore-and-recovery-tutorials-for-beginners-in-the-oracle-database/

 

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About Mehmet Salih Deveci

I am Founder of SysDBASoft IT and IT Tutorial and Certified Expert about Oracle & SQL Server database, Goldengate, Exadata Machine, Oracle Database Appliance administrator with 10+years experience. I have OCA, OCP, OCE RAC Expert Certificates I have worked 100+ Banking, Insurance, Finance, Telco and etc. clients as a Consultant, Insource or Outsource. I have done 200+ Operations in this clients such as Exadata Installation & PoC & Migration & Upgrade, Oracle & SQL Server Database Upgrade, Oracle RAC Installation, SQL Server AlwaysOn Installation, Database Migration, Disaster Recovery, Backup Restore, Performance Tuning, Periodic Healthchecks. I have done 2000+ Table replication with Goldengate or SQL Server Replication tool for DWH Databases in many clients. If you need Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS Consultancy and Training you can send my email adress mehmetsalih.deveci@outlook.com. -                                                                                                                                                                                                                                                 - Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS ve linux Danışmanlık ve Eğitim için  mehmetsalih.deveci@outlook.com a mail atabilirsiniz.

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