SAP HANA backup failed on timeout

  • KM03013050
  • 13-Nov-2017
  • 13-Nov-2017

This document has not been formally reviewed for accuracy and is provided "as is" for your convenience.


Backup for big SAP HANA database failed on timeout ( it appears DA is timing out after about 2+ hours of idle connection )


[Normal] From: OB2BAR_SAPHANA_BACKINT@<SAP_HANA_HOSTNAME> "T72" Time: 9/18/2017 10:38:21 PM
               Starting OB2BAR Backup: "Hana"
[Major] From: BSM@<CM_HOSTNAME> "HANA_T72_EBS_FULL" Time: 9/19/2017 1:00:24 AM
[61:3003]            Lost connection to OB2BAR Backup DA named "ERROR"
               on host <SAP_HANA_HOSTNAME>
               Ipc subsystem reports: "IPC Read Error
               System error: [238] Connection timed out


An idle timeout of 3600 seconds was configured on the firewall setting between the cell manager and the HANA server.
The low value of idle timeout on firewall setting is silently dropping only idle connections and seems to ignore TCP keepalive.


Increase idle timeout on firewall from 1 hour to several hours .