Downloading large files from an S3 remote volume can result in a deadlock

Detail name	Value
Changelog Number	19192
Type	Bug
Status	Open
Affected Versions	Exasol 8.0.0

Description

Downloading large files from an SDFS remote volume that uses an S3 bucket as its backend can result in a deadlock. As a consequence, backups to such a remote volume may get stuck at 70% progress. The issue could also affect BucketFS Services with S3 backend (mostly used in Exasol SaaS).

Workaround

Add the cloud_backend_v1 option to the remote volume configuration to use the legacy implementation (see Create remote archive volume).

Fix

The backend is updated to handle large files correctly.