Unexpected restart of the database on systems with high load and many aborted queries

Detail name	Value
Changelog Number	15370
Type	Bug
Status	Resolved
Affected Versions	Exasol 7.1.11
Fix Versions	Exasol 7.1.25
Resolution Date	2023-12-04

Description

A race condition may cause the database to restart unexpectedly if the following conditions are met:

• The system is under very heavy load
• The system has a very high concurrency
• There are a high number of SELECT queries without any data changes
• A high number of queries are killed because they can not be executed within a specified timeout

Workaround

Avoid improper termination of queries by setting a higher query timeout.

Fix

In these situations, the database will not restart and will function as expected.