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Connect to database failed, rc=1, rcSQL=-10709 Root-cause for Connect Timeout Expired

Updated May 18, 2018

This error is returned in case an attempt to connect to the HANA database via a secondary database connection did not finish within 30 seconds and timed out. The time-out implementation is by default set to 30 seconds in SAP Kernel versions < 742 PL22 for secondary database connections.

The following entries in the corresponding dialog workprocess trace confirm that you were facing exactly this issue:

Wed Sep  2 14:10:06 2015
Try to connect via secure store (SERVICE) on connection 1 ...
Wed Sep  2 14:10:36 2015
*** ERROR => Connect to database failed, rc=1, rcSQL=-10709

Connection 1 is a secondary database connection and the difference between the connection initiation start-time and timeout-time is exactly 30 seconds. It may happen from time to time that connection attempts via secondary database connections take "longer"


  • 27 Jan 2016 11:46 am Abhijeet Mudgal Best Answer

    Set the following SAP instance profile parameter on every application server:

    dbs/hdb/connect_property = CONNECTTIMEOUT=0

    After a restart of the SAP application server the changes become effective and the connection attemts should no longer time out.