3703216 - SAP HANA system hang and connection timeouts without crash caused by sustained memory pressure (overload scenario)

In productive SAP S/4HANA systems, users report that the system becomes unresponsive for several minutes.
Typical observations include:

• SAP GUI does not open or freezes
• Connection to HANA Studio or database cannot be established
• Short-term system “hang” without service crash or restart
• Application dumps such as DBSQL_CONNECTION_ERROR
• HANA trace messages like:
  • Broken pipe
  • Connect timeout expired
  • SSL exception during send/receive
  • reading failed with timeout

Indexserver and nameserver processes remain running.
Runtime dumps and automated analyzers do not report fatal issues such as OOM, crashes, deadlocks, or kernel panics.

SAP HANA DB Version 2.0

system hanging, sap hana, database performance, ssl exception, broken pipe, memory utilization, connection aborts, timeouts, system overload, memory reclaim, memory compaction, DBSQL_CONNECTION_ERROR, large statements, archiving, housekeeping, memory sizing, column store, row store , KBA , HAN-DB , SAP HANA Database , Problem