Alert.Log Entries Caused by DG4DRDA , (DG4DB2), DG4ODBC, DG4SYBASE, DG4MSQL, DG4IFMX and DG4TERA Gateway IDLE Timeout (Doc ID 1127160.1)

Last updated on NOVEMBER 04, 2013

Applies to:

Oracle Database Gateway for DRDA - Version 11.2.0.1 and later
Oracle Database Gateway for SQL Server - Version 11.2.0.1 and later
Oracle Database Gateway for Sybase - Version 11.2.0.1 and later
Oracle Database Gateway for Informix - Version 11.2.0.1 and later
Oracle Database Gateway for Teradata - Version 11.2.0.1 and later
Information in this document applies to any platform.
***Checked for relevance on 04-Nov-2013***

Symptoms

Starting with the 11.2 gateway release a gateway idle timeout is introduced. The gateway IDLE timeout (configuration parameter HS_IDLE_TIMEOUT=<time in minutes>) will end idle gateway sessions after the configured time. The next access of this session through the gateway will then fail with ORA-28511 and add entries to the alert.log file.

Changes

Enabling gateway idle timeout using the parameter HS_IDLE_TIMEOUT with a value not equal to 0.

Cause

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