Shrinking the temporary volume may not work reliably in some circumstances

Details

Detail name Value
Changelog Number 10749
Type Bug
Status Resolved
Affected Versions Exasol 6.1.0, Exasol 6.2.0, Exasol 7.0.0
Fix Versions Exasol 7.0.3, Exasol 6.2.11
Resolution Date 2020-10-09

Description

If the persistent volume cannot be increased due to limited storage space, the database will try to shrink the temporary volume in order to make additional space available for the persistent volume.

Under certain circumstances, this shrink operation of the temporary volume may fail if multiple users are using a lot of temporary data. As a result, this may cause sessions with high memory usage to be aborted, or the database to restart unnecessarily. This mechanism happens automatically and no user interaction is required.

Workaround

There is no workaround.

Fix

Shrinking the temporary volume will work as expected, avoiding unnecessary session aborts and restarts.