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3654882 - dbisql freezes when interrupted by exit signal - SAP IQ

Symptom

  • The freeze occurs when anything actively running is interrupted, be it as simple as “select * into #tmp from mylargetable”.
  • The issue does not occur when nothing is running - An idle dbisql can be interrupted.
  • When a signal such as `ctrl-c` is sent to SAP IQ, the system freezes instead of stopping.
  • The system can only be stopped using `SIGKILL`.
  • The issue prevents users from utilizing database tools effectively.


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Environment

  • - SAP IQ/16.1.050/15831/P/SP05.15
- Interactive SQL Version 17.0.7, build 544
- Interactive SQL Version 17.0.9, build 1473
- Interactive SQL Version 17.0.10, build 1549
- Interactive SQL Version 17.0.11, build 2916
- RHEL8, RHEL9

Product

SAP IQ 16.1

Keywords

signal interruption, ctrl-c freeze, tcpip connection, database tools, signal handling, process termination, sigkill required; , KBA , BC-SYB-IQ , Sybase IQ , Problem

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