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How to increase pool connection for an ords/apex installation

myluismApr 24 2024

Hi All.

This is an ORDS / Apex installation.

ORDS: ords-23.3.0.289.1830

Apex is version 23

Oracle Database is 19c under Windows (pluggale DB).

I'm ocassionally getting Net Errors (not specifically related to ORDS / Apex, which BTW is running under Tomcat 9).

Like I said I´m suspecting this may not be specifically related to ORDS and Apex. For example I´ve gotten net errors during impdp operations (ocassionally).

Also found this type of errors on alert.log:

***********************************************************************

Fatal NI connect error 12170.

VERSION INFORMATION:
TNS for 64-bit Windows: Version 19.0.0.0.0 - Production
Oracle Bequeath NT Protocol Adapter for 64-bit Windows: Version 19.0.0.0.0 - Production
Windows NT TCP/IP NT Protocol Adapter for 64-bit Windows: Version 19.0.0.0.0 - Production
Version 19.21.0.0.0
Time: 22-ABR-2024 14:06:02
Tracing not turned on.
Tns error struct:
ns main err code: 12535

TNS-12535: TNS:timeout de la operación
ns secondary err code: 12560
nt main err code: 505

TNS-00505: Timeout de la operación
nt secondary err code: 60
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.70.1)(PORT=51516))
2024-04-22T14:18:10.480240-03:00

***********************************************************************

Fatal NI connect error 12170.

VERSION INFORMATION:
TNS for 64-bit Windows: Version 19.0.0.0.0 - Production
Oracle Bequeath NT Protocol Adapter for 64-bit Windows: Version 19.0.0.0.0 - Production
Windows NT TCP/IP NT Protocol Adapter for 64-bit Windows: Version 19.0.0.0.0 - Production
Version 19.21.0.0.0
Time: 22-ABR-2024 14:18:10
Tracing not turned on.
Tns error struct:
ns main err code: 12535

TNS-12535: TNS:timeout de la operación
ns secondary err code: 12560
nt main err code: 505

TNS-00505: Timeout de la operación
nt secondary err code: 60
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.70.1)(PORT=12548))
2024-04-22T16:12:55.484022-03:00

***********************************************************************

However, as you can see on the screenshot above, we may be hitting the maximum number of sessions in the pool. So I would like to know:

  1. How to query the actual value for connection pool used by ORDS.
  2. How to increase that value.

Thanks so much in advance !!!

This post has been answered by alacourb on Apr 24 2024
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Added on Apr 24 2024
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